base class for all drawables, which is independent of the used rendering API. More...

#include <context.h>

Inheritance diagram for cgv::render::context:

Classes
struct	BlendState
	Represents a blend state used to configure fragment blending. More...

struct	BufferMask
	Represents a buffer mask used to mask depth and color buffer outputs. More...

struct	DepthTestState
	Represents a depth test state used to configure depth testing. More...

struct	light_source_status
	status information of light sources More...

struct	render_info
	information necessary for a rendering pass More...

Public Member Functions
shader_program_base *	get_current_program () const
	check for current program, prepare it for rendering and return pointer to it

void	enable_shader_file_cache ()
	enable the usage of the shader file caches

void	disable_shader_file_cache ()
	disable the usage of the shader file caches

bool	is_shader_file_cache_enabled () const
	whether the shader file caches are enabled

	context ()
	init the cursor position to (0,0)

virtual	~context ()
	virtual destructor

virtual void	error (const std::string &message, const render_component *rc=0) const
	error handling

virtual GPUVendorID	get_gpu_vendor_id () const
	device information

interface for implementation of specific contexts
virtual void	init_render_pass ()

virtual void	draw_textual_info ()

virtual void	perform_screen_shot ()

virtual void	finish_render_pass ()

render process
virtual void	configure_new_child (cgv::base::base_ptr child)
	helper method to integrate a new child

virtual RenderAPI	get_render_api () const =0
	return the used rendering API

unsigned	get_render_pass_recursion_depth () const
	return current render pass recursion depth

virtual RenderPass	get_render_pass () const
	return the current render pass

virtual RenderPassFlags	get_render_pass_flags () const
	return the current render pass flags

virtual void *	get_render_pass_user_data () const
	return the current render pass user data

virtual RenderPassFlags	get_default_render_pass_flags () const
	return the default render pass flags

virtual void	set_default_render_pass_flags (RenderPassFlags)
	return the default render pass flags

virtual void	render_pass (RenderPass render_pass=RP_MAIN, RenderPassFlags render_pass_flags=RPF_ALL, void *user_data=0)
	perform the given render task

void	set_debug_render_passes (bool _debug)
	set flag whether to debug render passes

bool	get_debug_render_passes () const
	check whether render passes are debugged

virtual bool	in_render_process () const =0
	return whether the context is currently in process of rendering

virtual bool	is_created () const =0
	return whether the context is created

virtual bool	is_current () const =0
	return whether the context is current

virtual bool	recreate_context ()
	recreate context based on current context config settings

virtual bool	make_current () const =0
	make the current context current if possible

virtual void	clear_current () const =0
	clear the current context, typically used in multi-threaded rendering to allow usage of context in several threads

virtual void	attach_alpha_buffer (bool attach=true)=0
	attach or detach (`attach=false`) an alpha buffer to the current frame buffer if not present

virtual void	attach_depth_buffer (bool attach=true)=0
	attach or detach (`attach=false`) depth buffer to the current frame buffer if not present

virtual void	attach_stencil_buffer (bool attach=true)=0
	attach or detach (`attach=false`) stencil buffer to the current frame buffer if not present

virtual bool	is_stereo_buffer_supported () const =0
	return whether the graphics card supports stereo buffer mode

virtual void	attach_stereo_buffer (bool attach=true)=0
	attach or detach (`attach=false`) stereo buffer to the current frame buffer if not present

virtual void	attach_accumulation_buffer (bool attach=true)=0
	attach or detach (`attach=false`) accumulation buffer to the current frame buffer if not present

virtual void	attach_multi_sample_buffer (bool attach=true)=0
	attach or detach (`attach=false`) multi sample buffer to the current frame buffer if not present

virtual unsigned int	get_width () const =0
	return the width of the window

virtual unsigned int	get_height () const =0
	return the height of the window

virtual void	resize (unsigned int width, unsigned int height)=0
	resize the context to the given dimensions

virtual bool	read_frame_buffer (data::data_view &dv, unsigned int x=0, unsigned int y=0, FrameBufferType buffer_type=FB_BACK, cgv::type::info::TypeId type=cgv::type::info::TI_UINT8, data::ComponentFormat cf=data::CF_RGB, int w=-1, int h=-1)=0
	read the current frame buffer or a rectangular region of it into the given data view.

bool	write_frame_buffer_to_image (const std::string &file_name, data::ComponentFormat cf=data::CF_RGB, FrameBufferType buffer_type=FB_BACK, unsigned int x=0, unsigned int y=0, int w=-1, int h=-1, float depth_offset=0.9f, float depth_scale=10.0f)
	write the content of the frame buffer to an image file.

void	push_bg_color ()
	push a copy of the current background color onto the stack

void	pop_bg_color ()
	pop the top of the current background color from the stack

virtual void	set_bg_color (vec4 rgba)
	set a user defined background color

void	set_bg_color (float r, float g, float b, float a)
	set a user defined background color

vec4	get_bg_color () const
	return the current color value for clearing the background

void	put_bg_color (float *rgba) const
	copy the current background rgba color into the given float array

void	set_bg_alpha (float a)
	set a user defined background alpha value

float	get_bg_alpha () const
	return the current alpha value for clearing the background

void	set_bg_clr_idx (unsigned int idx)
	set an indexed background color

unsigned int	get_bg_clr_idx () const
	return the current index of the background color

void	push_bg_depth ()
	push a copy of the current background depth value onto the stack

void	pop_bg_depth ()
	pop the top of the current background depth value from the stack

virtual void	set_bg_depth (float d)
	set a user defined background depth value

float	get_bg_depth () const
	return the current depth value for clearing the background

void	push_bg_stencil ()
	push a copy of the current background stencil value onto the stack

void	pop_bg_stencil ()
	pop the top of the current background stencil value from the stack

virtual void	set_bg_stencil (int s)
	set a user defined background stencil value

int	get_bg_stencil () const
	return the current stencil value for clearing the background

void	push_bg_accum_color ()
	push a copy of the current background accumulation color onto the stack

void	pop_bg_accum_color ()
	pop the top of the current background accumulation color from the stack

virtual void	set_bg_accum_color (vec4 rgba)
	set a user defined background color for the accumulation buffer

void	set_bg_accum_color (float r, float g, float b, float a)
	set a user defined background color for the accumulation buffer

vec4	get_bg_accum_color () const
	return the current color value for clearing the accumulation buffer

void	put_bg_accum_color (float *rgba) const
	copy the current accumulation background rgba color into the given float array

void	set_bg_accum_alpha (float a)
	set a user defined background alpha value for the accumulation buffer

float	get_bg_accum_alpha () const
	return the current alpha value for clearing the accumulation buffer

virtual void	clear_background (bool color_flag, bool depth_flag, bool stencil_flag=false, bool accum_flag=false)=0
	clear the buffer contents of the flagged buffers to the set background colors

virtual void	post_redraw ()=0
	the context will be redrawn when the system is idle again

virtual void	force_redraw ()=0
	the context will be redrawn right now. This method cannot be called inside the following methods of a drawable: init, init_frame, draw, finish_draw

virtual void	announce_external_frame_buffer_change (void *&cgv_fbo_storage)=0
	announce an external frame buffer change performed with rendering API to the cgv framework providing space to temporarily store frame buffer of cgv framework

virtual void	recover_from_external_frame_buffer_change (void *cgv_fbo_storage)=0
	restore cgv frame buffer to the state before the external change

font selection and measure
virtual void	enable_font_face (media::font::font_face_ptr font_face, float font_size)
	enable the given font face with the given size in pixels

virtual float	get_current_font_size () const
	return the size in pixels of the currently enabled font face

virtual media::font::font_face_ptr	get_current_font_face () const
	return the currently enabled font face

surface rendering and material management
virtual void	enable_phong_shading ()
	enable phong shading with the help of a shader (enabled by default)

virtual void	disable_phong_shading ()

virtual void	enable_material (const cgv::media::illum::phong_material &mat=cgv::media::illum::default_material(), MaterialSide ms=MS_FRONT_AND_BACK, float alpha=1)

virtual void	disable_material (const cgv::media::illum::phong_material &mat=cgv::media::illum::default_material())

virtual void	enable_material (const textured_material &mat, MaterialSide ms=MS_FRONT_AND_BACK, float alpha=1)

void	set_gamma (float _gamma)
	set the current per channel gamma values to single value

virtual void	set_gamma3 (const vec3 &_gamma3)
	set the current per channel gamma values to single value

float	get_gamma () const
	query current gamma computed as average over gamma3 per channel values

vec3	get_gamma3 () const
	query current per color channel gamma

virtual void	enable_sRGB_framebuffer (bool do_enable=true)
	enable or disable sRGB framebuffer

bool	sRGB_framebuffer_enabled ()
	check whether sRGB framebuffer is enabled

const rgba &	get_color () const
	return current color

virtual void	set_color (const rgba &clr)
	set the current color

virtual void	set_color (const rgb &clr, float opacity=1.0f)
	set the current color

virtual void	set_material (const cgv::media::illum::surface_material &mat)
	set the current material

const cgv::media::illum::surface_material *	get_current_material () const
	return pointer to current material or nullptr if no current material is available

virtual void	set_textured_material (const textured_material &mat)
	set the current material

virtual void	enable_material (textured_material &mat)=0
	enable a material with textures

virtual void	disable_material (textured_material &mat)=0
	disable a material with textures

void	set_current_gamma (shader_program &prog) const
	set the shader program gamma values

void	set_current_view (shader_program &prog, bool modelview_deps=true, bool projection_deps=true) const
	set the shader program view matrices to the currently enabled view matrices

void	set_current_material (shader_program &prog) const
	set the shader program material to the currently enabled material

void	set_current_lights (shader_program &prog) const
	set the shader program lights to the currently enabled lights

vec3	get_light_eye_position (const cgv::media::illum::light_source &light, bool place_now) const
	helper function to place lights

vec3	get_light_eye_spot_direction (const cgv::media::illum::light_source &light, bool place_now) const
	helper function to place spot lights

virtual shader_program &	ref_default_shader_program (bool texture_support=false)=0
	return a reference to a shader program used to render without illumination

virtual shader_program &	ref_surface_shader_program (bool texture_support=false)=0
	return a reference to the default shader program used to render surfaces

virtual void	enumerate_program_uniforms (shader_program &prog, std::vector< std::string > &names, std::vector< int > locations_ptr=0, std::vector< int > sizes_ptr=0, std::vector< int > *types_ptr=0, bool show=false) const =0
	get list of program uniforms

virtual void	enumerate_program_attributes (shader_program &prog, std::vector< std::string > &names, std::vector< int > locations_ptr=0, std::vector< int > sizes_ptr=0, std::vector< int > *types_ptr=0, bool show=false) const =0
	get list of program attributes

lights
void *	enable_light (const cgv::media::illum::light_source &light)

void	disable_light (void *handle)

unsigned	get_max_nr_lights () const

size_t	get_nr_light_sources () const
	return the number of light sources

void *	add_light_source (const cgv::media::illum::light_source &light, bool enabled=true, bool place_now=false)
	add a new light source, enable it if `enable` is true and place it relative to current model view transformation if `place_now` is true; return handle to light source

bool	remove_light_source (void *handle)
	remove a light source by handle and whether it existed

const cgv::media::illum::light_source &	get_light_source (void *handle) const
	read access to light source

const light_source_status &	get_light_source_status (void *handle) const
	read access to light source status

void	set_light_source (void *handle, const cgv::media::illum::light_source &light, bool place_now=true)
	set light source newly

void	place_light_source (void *handle)
	place the given light source relative to current model viel transformation

virtual unsigned	get_max_nr_enabled_light_sources () const
	return maximum number of light sources, that can be enabled in parallel

size_t	get_nr_enabled_light_sources () const
	return the number of light sources

void *	get_enabled_light_source_handle (size_t i) const
	access to handle of i-th light source

bool	is_light_source_enabled (void *handle)
	check whether light source is enabled

bool	enable_light_source (void *handle)
	enable a given light source and return whether there existed a light source with given handle

bool	disable_light_source (void *handle)
	disable a given light source and return whether there existed a light source with given handle

size_t	get_nr_default_light_sources () const
	return number of default light sources

const cgv::media::illum::light_source &	get_default_light_source (size_t i) const
	return i-th default light source

void	set_default_light_source (size_t i, const cgv::media::illum::light_source &ls)
	set i-th default light source

text output
virtual std::ostream &	output_stream ()
	returns an output stream whose output is printed at the current cursor location, which is managed by the context.

virtual void	set_cursor (int x, int y)
	flush the output_stream and set a new cursor position given in opengl coordinates with (0,0) in lower left corner

virtual void	get_cursor (int &x, int &y) const
	return current cursor location in opengl coordinates with (0,0) in lower left corner

virtual void	put_cursor_coords (const vecn &p, int &x, int &y) const
	transform point p in current world coordinates into opengl coordinates with (0,0) in lower left corner and put x and y coordinates into the passed variables

virtual void	set_cursor (const vecn &pos, const std::string &text="", TextAlignment ta=TA_BOTTOM_LEFT, int x_offset=0, int y_offset=0)
	flush output_stream and set the current text position from a 3D or 4D location in current world coordinates.

drawing
virtual void	draw_edges_of_faces (const float vertices, const float normals, const float tex_coords, const int vertex_indices, const int normal_indices, const int tex_coord_indices, int nr_faces, int face_degree, bool flip_normals=false) const =0
	pass geometry of given faces to current shader program and generate draw calls to render lines for the edges

virtual void	draw_edges_of_strip_or_fan (const float vertices, const float normals, const float tex_coords, const int vertex_indices, const int normal_indices, const int tex_coord_indices, int nr_faces, int face_degree, bool is_fan, bool flip_normals=false) const =0
	pass geometry of given strip or fan to current shader program and generate draw calls to render lines for the edges

virtual void	draw_faces (const float vertices, const float normals, const float tex_coords, const int vertex_indices, const int normal_indices, const int tex_coord_indices, int nr_faces, int face_degree, bool flip_normals=false) const =0
	pass geometry of given faces to current shader program and generate draw calls to render triangles

virtual void	draw_strip_or_fan (const float vertices, const float normals, const float tex_coords, const int vertex_indices, const int normal_indices, const int tex_coord_indices, int nr_faces, int face_degree, bool is_fan, bool flip_normals=false) const =0
	pass geometry of given strip or fan to current shader program and generate draw calls to render triangles

void	tesselate_unit_square (bool flip_normals=false, bool edges=false)
	tesselate a unit square in the xy-plane with texture coordinates

void	tesselate_unit_cube (bool flip_normals=false, bool edges=false)
	tesselate a unit cube with extent from [-1,-1,-1] to [1,1,1] with face normals that can be flipped

virtual void	tesselate_box (const cgv::media::axis_aligned_box< double, 3 > &B, bool flip_normals, bool edges=false) const
	tesselate an axis aligned box

void	tesselate_unit_prism (bool flip_normals=false, bool edges=false)
	tesselate a prism

void	tesselate_unit_disk (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a circular disk of radius 1

void	tesselate_unit_cone (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a cone of radius 1

void	tesselate_unit_cylinder (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a cylinder of radius 1

void	tesselate_unit_sphere (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a sphere of radius 1

void	tesselate_unit_tetrahedron (bool flip_normals=false, bool edges=false)
	tesselate a tetrahedron

void	tesselate_unit_octahedron (bool flip_normals=false, bool edges=false)
	tesselate a octahedron

void	tesselate_unit_dodecahedron (bool flip_normals=false, bool edges=false)
	tesselate a dodecahedron

void	tesselate_unit_icosahedron (bool flip_normals=false, bool edges=false)
	tesselate an icosahedron

void	tesselate_unit_torus (float minor_radius=0.2f, int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a torus with major radius of one and given minor radius

virtual void	tesselate_arrow (double length=1, double aspect=0.1, double rel_tip_radius=2.0, double tip_aspect=0.3, int res=25, bool edges=false)
	tesselate an arrow from the origin in z-direction

virtual void	tesselate_arrow (const dvec3 &start, const dvec3 &end, double aspect=0.1f, double rel_tip_radius=2.0f, double tip_aspect=0.3f, int res=25, bool edges=false)
	define length and direction from start and end point and draw an arrow

virtual void	draw_light_source (const cgv::media::illum::light_source &l, float intensity_scale, float light_scale)
	draw a light source with an emissive material

render state
void	push_depth_test_state ()
	push a copy of the current depth test state onto the stack saved attributes: depth test enablement, depth test function

void	pop_depth_test_state ()
	pop the top of the current depth test state from the stack

DepthTestState	get_depth_test_state () const
	return the current depth test state

virtual void	set_depth_test_state (DepthTestState state)
	set the depth test state

virtual void	set_depth_func (CompareFunction func)
	set the depth test function

virtual void	enable_depth_test ()
	enable the depth test

virtual void	disable_depth_test ()
	disable the depth test

void	push_cull_state ()
	push a copy of the current culling state onto the stack saved attributes: cull face enablement, cull face

void	pop_cull_state ()
	pop the top of the current culling state from the stack

CullingMode	get_cull_state () const
	return the current culling state

virtual void	set_cull_state (CullingMode culling_mode)
	set the culling state

void	push_blend_state ()
	push a copy of the current blend state onto the stack saved attributes: blend enablement, color and alpha source and destinatin functions

void	pop_blend_state ()
	pop the top of the current culling state from the stack

BlendState	get_blend_state () const
	return the current blend state

virtual void	set_blend_state (BlendState state)
	set the complete blend state

virtual void	set_blend_func (BlendFunction src_factor, BlendFunction dst_factor)
	set the blend function

virtual void	set_blend_func_separate (BlendFunction src_color_factor, BlendFunction dst_color_factor, BlendFunction src_alpha_factor, BlendFunction dst_alpha_factor)
	set the blend function separately for color and alpha

void	set_blend_func_front_to_back ()
	set the default blend function for front to back blending

void	set_blend_func_back_to_front ()
	set the default blend function for back to front blending

virtual void	enable_blending ()
	enable blending

virtual void	disable_blending ()
	disable blending

void	push_buffer_mask ()
	push a copy of the current buffer mask onto the stack saved attributes: depth mask, color mask

void	pop_buffer_mask ()
	pop the top of the current buffer mask from the stack

BufferMask	get_buffer_mask () const
	return the current buffer mask

virtual void	set_buffer_mask (BufferMask mask)
	set the buffer mask for depth and color buffers

bool	get_depth_mask () const
	get the depth buffer mask

virtual void	set_depth_mask (bool flag)
	set the depth buffer mask

bvec4	get_color_mask () const
	get the color buffer mask

virtual void	set_color_mask (bvec4 flags)
	set the color buffer mask

Public Member Functions inherited from cgv::render::context_config
	context_config ()
	construct config with default parameters

bool	self_reflect (cgv::reflect::reflection_handler &srh)
	reflect the shader_path member

Protected Member Functions
virtual void	on_lights_changed ()
	helper function to send light update events

virtual void	process_text (const std::string &text)
	callback method for processing of text from the output stream

virtual void	draw_text (const std::string &text)
	draw some text at cursor position and update cursor position

virtual int	query_integer_constant (ContextIntegerConstant cic) const =0

virtual void	destruct_render_objects ()

virtual void	put_id (void handle, void ptr) const =0

virtual cgv::data::component_format	texture_find_best_format (const cgv::data::component_format &cf, render_component &rc, const std::vector< cgv::data::data_view > *palettes=0) const =0

virtual bool	texture_create (texture_base &tb, cgv::data::data_format &df) const =0

virtual bool	texture_create (texture_base &tb, cgv::data::data_format &target_format, const cgv::data::const_data_view &data, int level, int cube_side=-1, int num_array_layers=0, const std::vector< cgv::data::data_view > *palettes=0) const =0

virtual bool	texture_create_from_buffer (texture_base &tb, cgv::data::data_format &df, int x, int y, int level) const =0

virtual bool	texture_replace (texture_base &tb, int x, int y, int z_or_cube_side, const cgv::data::const_data_view &data, int level, const std::vector< cgv::data::data_view > *palettes=0) const =0

virtual bool	texture_replace_from_buffer (texture_base &tb, int x, int y, int z_or_cube_side, int x_buffer, int y_buffer, unsigned int width, unsigned int height, int level) const =0

virtual bool	texture_create_mipmaps (texture_base &tb, cgv::data::data_format &df) const =0

virtual bool	texture_generate_mipmaps (texture_base &tb, unsigned int dim) const =0

virtual bool	texture_destruct (texture_base &tb) const =0

virtual bool	texture_set_state (const texture_base &tb) const =0

virtual bool	texture_enable (texture_base &tb, int tex_unit, unsigned int nr_dims) const =0

virtual bool	texture_disable (texture_base &tb, int tex_unit, unsigned int nr_dims) const =0

virtual bool	texture_bind_as_image (texture_base &tb, int tex_unit, int level, bool bind_array, int layer, AccessType access) const =0

virtual bool	render_buffer_create (render_buffer_base &rc, cgv::data::component_format &cf, int &_width, int &_height) const =0

virtual bool	render_buffer_destruct (render_buffer_base &rc) const =0

virtual bool	frame_buffer_create (frame_buffer_base &fbb) const

virtual bool	frame_buffer_attach (frame_buffer_base &fbb, const render_buffer_base &rb, bool is_depth, int i) const

virtual bool	frame_buffer_attach (frame_buffer_base &fbb, const texture_base &t, bool is_depth, int level, int i, int z) const

virtual bool	frame_buffer_is_complete (const frame_buffer_base &fbb) const =0

virtual bool	frame_buffer_enable (frame_buffer_base &fbb)

virtual bool	frame_buffer_disable (frame_buffer_base &fbb)

virtual bool	frame_buffer_destruct (frame_buffer_base &fbb) const

virtual void	frame_buffer_blit (const frame_buffer_base src_fbb_ptr, const ivec4 &S, frame_buffer_base dst_fbb_ptr, const ivec4 &_D, BufferTypeBits btbs, bool interpolate) const =0

virtual int	frame_buffer_get_max_nr_color_attachments () const =0

virtual int	frame_buffer_get_max_nr_draw_buffers () const =0

virtual bool	shader_code_create (render_component &sc, ShaderType st, const std::string &source) const =0

virtual bool	shader_code_compile (render_component &sc) const =0

virtual void	shader_code_destruct (render_component &sc) const =0

virtual bool	shader_program_create (shader_program_base &spb) const =0

virtual void	shader_program_attach (shader_program_base &spb, const render_component &sc) const =0

virtual void	shader_program_detach (shader_program_base &spb, const render_component &sc) const =0

virtual bool	shader_program_link (shader_program_base &spb) const

virtual bool	shader_program_set_state (shader_program_base &spb) const =0

virtual bool	shader_program_enable (shader_program_base &spb)

virtual bool	shader_program_disable (shader_program_base &spb)

virtual bool	shader_program_destruct (shader_program_base &spb) const

virtual int	get_uniform_location (const shader_program_base &spb, const std::string &name) const =0

virtual bool	set_uniform_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr) const =0

virtual bool	set_uniform_array_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr, size_t nr_elements) const =0

virtual int	get_attribute_location (const shader_program_base &spb, const std::string &name) const =0

virtual bool	set_attribute_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr) const =0

virtual bool	attribute_array_binding_create (attribute_array_binding_base &aab) const =0

virtual bool	attribute_array_binding_destruct (attribute_array_binding_base &aab) const

virtual bool	attribute_array_binding_enable (attribute_array_binding_base &aab)

virtual bool	attribute_array_binding_disable (attribute_array_binding_base &aab)

virtual bool	set_attribute_array_void (attribute_array_binding_base aab, int loc, type_descriptor value_type, const vertex_buffer_base vbb, const void *ptr, size_t nr_elements=0, unsigned stride_in_bytes=0) const =0

virtual bool	set_element_array (attribute_array_binding_base aab, const vertex_buffer_base vbb) const =0

virtual bool	enable_attribute_array (attribute_array_binding_base *aab, int loc, bool do_enable) const =0

virtual bool	is_attribute_array_enabled (const attribute_array_binding_base *aab, int loc) const =0

virtual bool	vertex_buffer_bind (const vertex_buffer_base &vbb, VertexBufferType _type, unsigned _idx=-1) const =0

virtual bool	vertex_buffer_unbind (const vertex_buffer_base &vbb, VertexBufferType _type, unsigned _idx=-1) const =0

virtual bool	vertex_buffer_create (vertex_buffer_base &vbb, const void *array_ptr, size_t size_in_bytes) const =0

virtual bool	vertex_buffer_resize (vertex_buffer_base &vbb, const void *array_ptr, size_t size_in_bytes) const =0

virtual bool	vertex_buffer_replace (vertex_buffer_base &vbb, size_t offset, size_t size_in_bytes, const void *array_ptr) const =0

virtual bool	vertex_buffer_copy (const vertex_buffer_base &src, size_t src_offset, vertex_buffer_base &target, size_t target_offset, size_t size_in_bytes) const =0

virtual bool	vertex_buffer_copy_back (vertex_buffer_base &vbb, size_t offset, size_t size_in_bytes, void *array_ptr) const =0

virtual bool	vertex_buffer_destruct (vertex_buffer_base &vbb) const =0

Static Protected Member Functions
static void	get_buffer_list (frame_buffer_base &fbb, bool &depth_buffer, std::vector< int > &buffers, int offset=0)

Protected Attributes
GPUVendorID	gpu_vendor

bool	use_shader_file_cache
	whether to use the caching facilities of shader_program and shader_code to store loaded shader file contents as strings for faster loading

bool	auto_set_view_in_current_shader_program
	whether to automatically set viewing matrixes in current shader program, defaults to true

bool	auto_set_lights_in_current_shader_program
	whether to automatically set lights in current shader program, defaults to true

bool	auto_set_material_in_current_shader_program
	whether to automatically set material in current shader program, defaults to true

bool	auto_set_gamma_in_current_shader_program
	whether to automatically set gamma in current shader program, defaults to true

bool	support_compatibility_mode
	whether to support view and lighting management of compatibility mode, defaults to true

bool	draw_in_compatibility_mode
	whether to do all drawing in compatibility mode, only possible if support_compatibility_mode is true, , defaults to false

bool	debug_render_passes
	whether to debug render passes

bool	enable_vsync
	whether vsync should be enabled

rgba	current_color
	current color value

bool	sRGB_framebuffer
	whether to use opengl option to support sRGB framebuffer

vec3	gamma3
	per color channel gamma value passed to shader programs that have gamma uniform

std::stack< vec4 >	bg_color_stack
	stack of background colors

std::stack< float >	bg_depth_stack
	stack of background depth values

std::stack< int >	bg_stencil_stack
	stack of background stencil values

std::stack< vec4 >	bg_accum_color_stack
	stack of background accumulation colors

std::stack< DepthTestState >	depth_test_state_stack
	stack of depth test states

std::stack< CullingMode >	cull_state_stack
	stack of culling mode states

std::stack< BlendState >	blend_state_stack
	stack of blend states

std::stack< BufferMask >	buffer_mask_stack
	stack of buffer masks

std::stack< dmat4 >	modelview_matrix_stack
	keep two matrix stacks for model view and projection matrices

std::stack< dmat4 >	projection_matrix_stack

std::stack< std::vector< window_transformation > >	window_transformation_stack
	keep stack of window transformations

std::stack< frame_buffer_base * >	frame_buffer_stack
	stack of currently enabled frame buffers

std::stack< shader_program_base * >	shader_program_stack
	stack of currently enabled shader programs

std::stack< attribute_array_binding_base * >	attribute_array_binding_stack
	stack of currently enabled attribute array binding

std::vector< void * >	enabled_light_source_handles
	keep track of enabled light source handles

size_t	light_source_handle
	counter to construct light source handles

std::map< void *, std::pair< cgv::media::illum::light_source, light_source_status > >	light_sources
	map handle to light source and light source status information

cgv::media::illum::light_source	default_light_source [nr_default_light_sources]
	default light sources

void *	default_light_source_handles [nr_default_light_sources]
	handles of default light sources

cgv::media::illum::surface_material	default_material
	store a default material

const cgv::media::illum::surface_material *	current_material_ptr
	store pointer to current material

bool	current_material_is_textured
	store flag to tell whether current material is textured

std::stack< render_info >	render_pass_stack
	store the current render pass

RenderPassFlags	default_render_flags
	default render flags with which the main render pass is initialized

bool	phong_shading
	whether to use phong shading

int	current_background
	current back ground color index

int	cursor_x
	current cursor location for textual output

int	cursor_y

cgv::signal::callback_stream	out_stream
	use a callback stream to write text to the opengl context

float	current_font_size
	store current font size

cgv::media::font::font_face_ptr	current_font_face
	store current font

int	tab_size
	size a tabs

int	x_offset
	offset in x and y direction where text starts

int	y_offset

int	nr_identations
	current number of indentations

bool	at_line_begin
	store whether we are at the beginning of the line

bool	do_screen_shot

Static Protected Attributes
static const unsigned	nr_default_light_sources = 2
	number of default light sources

Friends
class CGV_API	attribute_array_manager

class CGV_API	render_component

class CGV_API	texture

class CGV_API	render_buffer

class CGV_API	frame_buffer

class CGV_API	shader_code

class CGV_API	shader_program

class CGV_API	attribute_array_binding

class CGV_API	vertex_buffer

class	shader_program_base

transformations
dmatn	get_V () const

void	set_V (const dmatn &V) const

void	push_V ()

void	pop_V ()

dmatn	get_P () const

void	set_P (const dmatn &P) const

void	push_P ()

void	pop_P ()

dmatn	get_D () const

dmatn	get_DPV () const

virtual void	push_pixel_coords ()=0
	use this to push new modelview and new projection matrices onto the transformation stacks such that x and y coordinates correspond to opengl coordinates with (0,0) in lower left corner.

virtual void	pop_pixel_coords ()=0
	pop previously pushed transformation matrices from modelview and projection stacks

virtual dmat4	get_modelview_matrix () const =0
	return homogeneous 4x4 viewing matrix, which transforms from world to eye space

virtual void	set_modelview_matrix (const dmat4 &MV)
	set the current modelview matrix, which transforms from world to eye space

virtual void	mul_modelview_matrix (const dmat4 &MV)
	multiply given matrix from right to current modelview matrix

void	push_modelview_matrix ()
	push the current viewing matrix onto a matrix stack for viewing matrices.

void	pop_modelview_matrix ()
	see push_V for an explanation

virtual dmat4	get_projection_matrix () const =0
	return homogeneous 4x4 projection matrix, which transforms from eye to clip space

virtual void	set_projection_matrix (const dmat4 &P)
	set the current projection matrix, which transforms from eye to clip space

virtual void	mul_projection_matrix (const dmat4 &P)
	multiply given matrix from right to current projection matrix

void	push_projection_matrix ()
	same as push_V but for the projection matrix - a different matrix stack is used.

void	pop_projection_matrix ()
	see push_P for an explanation

void	push_window_transformation_array ()
	push a copy of the current viewport and depth range arrays defining the window transformations

virtual void	pop_window_transformation_array ()
	restore previous viewport and depth range arrays defining the window transformations

virtual void	announce_external_viewport_change (ivec4 &cgv_viewport_storage)=0
	announce an external viewport change performed with rendering API to the cgv framework providing space to temporarily store viewport of cgv framework

virtual void	recover_from_external_viewport_change (const ivec4 &cgv_viewport_storage)=0
	restore cgv viewport to the state before the external change

virtual unsigned	get_max_window_transformation_array_size () const =0
	query the maximum number of supported window transformations, which is at least 1

virtual void	set_viewport (const ivec4 &viewport, int array_index=-1)
	set the current viewport or one of the viewports in the window transformation array

virtual void	set_depth_range (const dvec2 &depth_range=dvec2(0, 1), int array_index=-1)
	set the current depth range or one of the depth ranges in the window transformation array

const std::vector< window_transformation > &	get_window_transformation_array () const
	return the current window transformation array

dmat4	get_window_matrix (unsigned array_index=0) const
	return a homogeneous 4x4 matrix to transform clip to window coordinates

dmat4	get_modelview_projection_window_matrix (unsigned array_index=0) const
	return a homogeneous 4x4 matrix to transfrom from model to window coordinates, i.e. the product of modelview, projection and device matrix in reversed order (window_matrixprojection_matrixmodelview_matrix)

virtual double	get_window_z (int x_window, int y_window) const =0
	read the window z-coordinate from the depth buffer for the given opengl x- and y-coordinates

vec3	get_model_point (int x_window, int y_window) const
	compute model space 3D point from the given opengl pixel location (window location)

vec3	get_model_point (int x_window, int y_window, double z_window) const
	compute model space 3D point from the given opengl pixel location (window location)

vec3	get_model_point (int x_window, int y_window, const dmat4 &modelview_projection_window_matrix) const
	compute model space 3D point from the given opengl pixel location (window location) and modelview_projection_window matrix

vec3	get_model_point (const vec3 &p_window) const
	compute model space 3D point from the given window space point

dmat4	get_device_matrix () const
	return homogeneous 4x4 projection matrix, which transforms from clip to device space

dmat4	get_modelview_projection_device_matrix () const
	return matrix to transfrom from model to device coordinates, i.e. the product of modelview, projection and device matrix in reversed order (device_matrixprojection_matrixmodelview_matrix)

double	get_z_D (int x_D, int y_D) const
	read the window z-coordinate from the z-buffer for the given device x- and y-coordinates

vec3	get_point_W (int x_D, int y_D) const
	compute the location in world space of a device x/y-location. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.

vec3	get_point_W (int x_D, int y_D, const dmat4 &MPD) const
	compute the location in world space of a device x/y-location by inversion of the given transformation from world to device space. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.

vec3	get_point_W (int x_D, int y_D, double z_D) const
	compute the location in world space of a device point. For this the current world to device transformation is inverted.

vec3	get_point_W (int x_D, int y_D, double z_D, const dmat4 &MPD) const
	compute the location in world space of a device point by inversion of the given world to device transformation.

vec3	get_point_W (const vec3 &p_D) const
	compute a the location in world space of a device point.

vec3	get_point_W (const vec3 &p_D, const dmat4 &MPD) const
	compute a the location in world space of a device point.

bool	ensure_window_transformation_index (int &array_index)

static vec3	get_model_point (int x_window, int y_window, double z_window, const dmat4 &modelview_projection_window_matrix)
	compute model space 3D point from the given opengl pixel location (window location) with the given modelview_projection_window matrix

static vec3	get_model_point (const dvec3 &p_window, const dmat4 &modelview_projection_window_matrix)
	compute model space 3D point from the given window space point and the given modelview_projection_window matrix

Additional Inherited Members
Public Attributes inherited from cgv::render::context_config
bool	depth_buffer
	default: true

bool	double_buffer
	default: true

bool	alpha_buffer
	default: false

bool	stereo_buffer
	default: false

bool	stencil_buffer
	default: false

bool	accumulation_buffer
	default: false

bool	multi_sample_buffer
	default: false

int	depth_bits
	default: -1

int	stencil_bits
	default: -1

int	accumulation_bits
	default: -1

int	nr_multi_samples
	default: -1

int	version_major
	default: -1 ... major version of maximum supported OpenGL version

int	version_minor
	default: -1 ... minor version of maximum supported OpenGL version

bool	forward_compatible
	default: false

bool	debug
	default: false in release and true in debug version

bool	core_profile
	default: true

std::vector< int >	context_creation_attrib_list
	provide integer vector to store context creation attribute list

Detailed Description

base class for all drawables, which is independent of the used rendering API.

Definition at line 620 of file context.h.

Constructor & Destructor Documentation

◆ context()

cgv::render::context::context ( )

init the cursor position to (0,0)

Definition at line 128 of file context.cxx.

References at_line_begin, auto_set_gamma_in_current_shader_program, auto_set_lights_in_current_shader_program, auto_set_material_in_current_shader_program, auto_set_view_in_current_shader_program, bg_accum_color_stack, bg_color_stack, bg_depth_stack, bg_stencil_stack, blend_state_stack, buffer_mask_stack, cull_state_stack, current_background, current_color, current_font_size, current_material_is_textured, current_material_ptr, cursor_x, debug_render_passes, default_light_source, default_light_source_handles, default_render_flags, depth_test_state_stack, draw_in_compatibility_mode, enable_vsync, frame_buffer_stack, gamma3, cgv::render::get_render_config(), light_source_handle, modelview_matrix_stack, nr_identations, phong_shading, cgv::render::RPF_DEFAULT, sRGB_framebuffer, support_compatibility_mode, tab_size, use_shader_file_cache, window_transformation_stack, and x_offset.

◆ ~context()

cgv::render::context::~context ( )

virtual

virtual destructor

Definition at line 236 of file context.cxx.

Member Function Documentation

◆ add_light_source()

void * cgv::render::context::add_light_source	(	const cgv::media::illum::light_source &	light,
		bool	enabled = `true`,
		bool	place_now = `false`
	)

add a new light source, enable it if enable is true and place it relative to current model view transformation if place_now is true; return handle to light source

Definition at line 504 of file context.cxx.

References enabled_light_source_handles, get_light_eye_position(), get_light_eye_spot_direction(), light_source_handle, light_sources, and on_lights_changed().

Referenced by render_pass().

◆ announce_external_frame_buffer_change()

virtual void cgv::render::context::announce_external_frame_buffer_change ( void *& cgv_fbo_storage )

pure virtual

announce an external frame buffer change performed with rendering API to the cgv framework providing space to temporarily store frame buffer of cgv framework

Implemented in cgv::render::gl::gl_context.

◆ announce_external_viewport_change()

virtual void cgv::render::context::announce_external_viewport_change ( ivec4 & cgv_viewport_storage )

pure virtual

announce an external viewport change performed with rendering API to the cgv framework providing space to temporarily store viewport of cgv framework

Implemented in cgv::render::gl::gl_context.

◆ attribute_array_binding_destruct()

bool cgv::render::context::attribute_array_binding_destruct ( attribute_array_binding_base & aab ) const

protectedvirtual

Definition at line 2233 of file context.cxx.

◆ attribute_array_binding_disable()

bool cgv::render::context::attribute_array_binding_disable ( attribute_array_binding_base & aab )

protectedvirtual

Definition at line 2280 of file context.cxx.

◆ attribute_array_binding_enable()

bool cgv::render::context::attribute_array_binding_enable ( attribute_array_binding_base & aab )

protectedvirtual

Definition at line 2261 of file context.cxx.

◆ clear_background()

virtual void cgv::render::context::clear_background	(	bool	color_flag,
		bool	depth_flag,
		bool	stencil_flag = `false`,
		bool	accum_flag = `false`
	)

pure virtual

clear the buffer contents of the flagged buffers to the set background colors

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::app::navigator::finish_draw().

◆ configure_new_child()

void cgv::render::context::configure_new_child ( cgv::base::base_ptr child )

virtual

helper method to integrate a new child

Definition at line 266 of file context.cxx.

References error(), cgv::render::drawable::init(), is_created(), make_current(), post_redraw(), cgv::render::drawable::set_context(), and cgv::base::traverser::traverse().

◆ destruct_render_objects()

void cgv::render::context::destruct_render_objects ( )

protectedvirtual

Definition at line 254 of file context.cxx.

◆ disable_blending()

void cgv::render::context::disable_blending ( )

virtual

disable blending

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1760 of file context.cxx.

References blend_state_stack.

Referenced by cgv::render::gl::gl_context::disable_blending().

◆ disable_depth_test()

void cgv::render::context::disable_depth_test ( )

virtual

disable the depth test

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1695 of file context.cxx.

References depth_test_state_stack.

Referenced by cgv::render::gl::gl_context::disable_depth_test(), cgv::render::volume_renderer::enable(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ disable_light()

void cgv::render::context::disable_light ( void * handle )

inline

Definition at line 1128 of file context.h.

◆ disable_light_source()

bool cgv::render::context::disable_light_source ( void * handle )

disable a given light source and return whether there existed a light source with given handle

Definition at line 700 of file context.cxx.

References enabled_light_source_handles, cgv::base::action::end(), light_sources, and on_lights_changed().

◆ disable_material() [1/2]

void cgv::render::context::disable_material ( const cgv::media::illum::phong_material & mat = cgv::media::illum::default_material() )

virtual

Definition at line 425 of file context.cxx.

◆ disable_material() [2/2]

virtual void cgv::render::context::disable_material ( textured_material & mat )

pure virtual

disable a material with textures

Implemented in cgv::render::gl::gl_context.

◆ disable_phong_shading()

void cgv::render::context::disable_phong_shading ( )

virtual

Definition at line 414 of file context.cxx.

◆ disable_shader_file_cache()

void cgv::render::context::disable_shader_file_cache ( )

disable the usage of the shader file caches

Definition at line 457 of file context.cxx.

References use_shader_file_cache.

◆ draw_edges_of_faces()

virtual void cgv::render::context::draw_edges_of_faces	(	const float *	vertices,
		const float *	normals,
		const float *	tex_coords,
		const int *	vertex_indices,
		const int *	normal_indices,
		const int *	tex_coord_indices,
		int	nr_faces,
		int	face_degree,
		bool	flip_normals = `false`
	)		const

pure virtual

pass geometry of given faces to current shader program and generate draw calls to render lines for the edges

Implemented in cgv::render::gl::gl_context.

Referenced by tesselate_box(), tesselate_unit_cube(), tesselate_unit_disk(), cgv::render::tesselate_unit_dodecahedron_or_icosahedron(), tesselate_unit_octahedron(), tesselate_unit_prism(), tesselate_unit_square(), and tesselate_unit_tetrahedron().

◆ draw_edges_of_strip_or_fan()

virtual void cgv::render::context::draw_edges_of_strip_or_fan	(	const float *	vertices,
		const float *	normals,
		const float *	tex_coords,
		const int *	vertex_indices,
		const int *	normal_indices,
		const int *	tex_coord_indices,
		int	nr_faces,
		int	face_degree,
		bool	is_fan,
		bool	flip_normals = `false`
	)		const

pure virtual

pass geometry of given strip or fan to current shader program and generate draw calls to render lines for the edges

Implemented in cgv::render::gl::gl_context.

Referenced by tesselate_unit_cone(), tesselate_unit_cylinder(), tesselate_unit_prism(), tesselate_unit_sphere(), and tesselate_unit_torus().

◆ draw_faces()

virtual void cgv::render::context::draw_faces	(	const float *	vertices,
		const float *	normals,
		const float *	tex_coords,
		const int *	vertex_indices,
		const int *	normal_indices,
		const int *	tex_coord_indices,
		int	nr_faces,
		int	face_degree,
		bool	flip_normals = `false`
	)		const

pure virtual

pass geometry of given faces to current shader program and generate draw calls to render triangles

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::render_to_texture3D(), tesselate_box(), tesselate_unit_cube(), tesselate_unit_disk(), cgv::render::tesselate_unit_dodecahedron_or_icosahedron(), tesselate_unit_octahedron(), tesselate_unit_prism(), tesselate_unit_square(), and tesselate_unit_tetrahedron().

◆ draw_light_source()

void cgv::render::context::draw_light_source	(	const cgv::media::illum::light_source &	l,
		float	intensity_scale,
		float	light_scale
	)

virtual

draw a light source with an emissive material

Parameters

[in]	l	to be rendered light source
[in]	intensity_scale	used to multiply with the light source values

Reimplemented in cgv::render::gl::gl_context.

Definition at line 2032 of file context.cxx.

◆ draw_strip_or_fan()

virtual void cgv::render::context::draw_strip_or_fan	(	const float *	vertices,
		const float *	normals,
		const float *	tex_coords,
		const int *	vertex_indices,
		const int *	normal_indices,
		const int *	tex_coord_indices,
		int	nr_faces,
		int	face_degree,
		bool	is_fan,
		bool	flip_normals = `false`
	)		const

pure virtual

pass geometry of given strip or fan to current shader program and generate draw calls to render triangles

Implemented in cgv::render::gl::gl_context.

Referenced by tesselate_unit_cone(), tesselate_unit_cylinder(), tesselate_unit_prism(), tesselate_unit_sphere(), and tesselate_unit_torus().

◆ draw_text()

void cgv::render::context::draw_text ( const std::string & text )

protectedvirtual

draw some text at cursor position and update cursor position

Definition at line 888 of file context.cxx.

References current_font_face, cursor_x, and cgv::data::ref_ptr< T, is_ref_counted >::empty().

Referenced by process_text().

◆ draw_textual_info()

void cgv::render::context::draw_textual_info ( )

virtual

Definition at line 245 of file context.cxx.

◆ enable_blending()

void cgv::render::context::enable_blending ( )

virtual

enable blending

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1756 of file context.cxx.

References blend_state_stack.

Referenced by cgv::render::rectangle_renderer::enable(), cgv::render::volume_renderer::enable(), cgv::render::gl::gl_context::enable_blending(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ enable_depth_test()

void cgv::render::context::enable_depth_test ( )

virtual

enable the depth test

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1691 of file context.cxx.

References depth_test_state_stack.

Referenced by cgv::render::gl::gl_context::enable_depth_test().

◆ enable_font_face()

void cgv::render::context::enable_font_face	(	media::font::font_face_ptr	font_face,
		float	font_size
	)

virtual

enable the given font face with the given size in pixels

Definition at line 906 of file context.cxx.

References current_font_face, and current_font_size.

Referenced by vr_test::init_frame().

◆ enable_light()

void * cgv::render::context::enable_light ( const cgv::media::illum::light_source & light )

inline

Definition at line 1127 of file context.h.

◆ enable_light_source()

bool cgv::render::context::enable_light_source ( void * handle )

enable a given light source and return whether there existed a light source with given handle

Definition at line 685 of file context.cxx.

References enabled_light_source_handles, cgv::base::action::end(), light_sources, and on_lights_changed().

◆ enable_material() [1/3]

void cgv::render::context::enable_material	(	const cgv::media::illum::phong_material &	mat = `cgv::media::illum::default_material()`,
		MaterialSide	ms = `MS_FRONT_AND_BACK`,
		float	alpha = `1`
	)

virtual

Definition at line 420 of file context.cxx.

◆ enable_material() [2/3]

void cgv::render::context::enable_material	(	const textured_material &	mat,
		MaterialSide	ms = `MS_FRONT_AND_BACK`,
		float	alpha = `1`
	)

virtual

Definition at line 429 of file context.cxx.

◆ enable_material() [3/3]

virtual void cgv::render::context::enable_material ( textured_material & mat )

pure virtual

enable a material with textures

Implemented in cgv::render::gl::gl_context.

◆ enable_phong_shading()

void cgv::render::context::enable_phong_shading ( )

virtual

enable phong shading with the help of a shader (enabled by default)

Definition at line 408 of file context.cxx.

References error(), and phong_shading.

◆ enable_shader_file_cache()

void cgv::render::context::enable_shader_file_cache ( )

enable the usage of the shader file caches

Definition at line 451 of file context.cxx.

References use_shader_file_cache.

◆ enable_sRGB_framebuffer()

void cgv::render::context::enable_sRGB_framebuffer ( bool do_enable = true )

virtual

enable or disable sRGB framebuffer

Definition at line 434 of file context.cxx.

References sRGB_framebuffer.

◆ ensure_window_transformation_index()

bool cgv::render::context::ensure_window_transformation_index ( int & array_index )

protected

Definition at line 1880 of file context.cxx.

◆ enumerate_program_attributes()

virtual void cgv::render::context::enumerate_program_attributes	(	shader_program &	prog,
		std::vector< std::string > &	names,
		std::vector< int > *	locations_ptr = `0`,
		std::vector< int > *	sizes_ptr = `0`,
		std::vector< int > *	types_ptr = `0`,
		bool	show = `false`
	)		const

pure virtual

get list of program attributes

Implemented in cgv::render::gl::gl_context.

◆ enumerate_program_uniforms()

virtual void cgv::render::context::enumerate_program_uniforms	(	shader_program &	prog,
		std::vector< std::string > &	names,
		std::vector< int > *	locations_ptr = `0`,
		std::vector< int > *	sizes_ptr = `0`,
		std::vector< int > *	types_ptr = `0`,
		bool	show = `false`
	)		const

pure virtual

get list of program uniforms

Implemented in cgv::render::gl::gl_context.

◆ error()

void cgv::render::context::error	(	const std::string &	message,
		const render_component *	rc = `0`
	)		const

virtual

error handling

Definition at line 219 of file context.cxx.

References cgv::render::get_render_config().

◆ finish_render_pass()

void cgv::render::context::finish_render_pass ( )

virtual

Definition at line 260 of file context.cxx.

◆ frame_buffer_attach() [1/2]

bool cgv::render::context::frame_buffer_attach	(	frame_buffer_base &	fbb,
		const render_buffer_base &	rb,
		bool	is_depth,
		int	i
	)		const

protectedvirtual

Definition at line 2340 of file context.cxx.

◆ frame_buffer_attach() [2/2]

bool cgv::render::context::frame_buffer_attach	(	frame_buffer_base &	fbb,
		const texture_base &	t,
		bool	is_depth,
		int	level,
		int	i,
		int	z
	)		const

protectedvirtual

Reimplemented in cgv::render::gl::gl_context.

Definition at line 2358 of file context.cxx.

◆ frame_buffer_create()

bool cgv::render::context::frame_buffer_create ( frame_buffer_base & fbb ) const

protectedvirtual

Definition at line 2331 of file context.cxx.

◆ frame_buffer_destruct()

bool cgv::render::context::frame_buffer_destruct ( frame_buffer_base & fbb ) const

protectedvirtual

Definition at line 2410 of file context.cxx.

◆ frame_buffer_disable()

bool cgv::render::context::frame_buffer_disable ( frame_buffer_base & fbb )

protectedvirtual

Reimplemented in cgv::render::gl::gl_context.

Definition at line 2395 of file context.cxx.

◆ frame_buffer_enable()

bool cgv::render::context::frame_buffer_enable ( frame_buffer_base & fbb )

protectedvirtual

Definition at line 2376 of file context.cxx.

◆ frame_buffer_is_complete()

virtual bool cgv::render::context::frame_buffer_is_complete ( const frame_buffer_base & fbb ) const

protectedpure virtual

Implemented in cgv::render::gl::gl_context.

◆ get_bg_accum_alpha()

float cgv::render::context::get_bg_accum_alpha ( ) const

return the current alpha value for clearing the accumulation buffer

Definition at line 403 of file context.cxx.

References bg_accum_color_stack.

◆ get_bg_accum_color()

vec4 cgv::render::context::get_bg_accum_color ( ) const

return the current color value for clearing the accumulation buffer

Definition at line 387 of file context.cxx.

References bg_accum_color_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_bg_accum_color(), and push_bg_accum_color().

◆ get_bg_alpha()

float cgv::render::context::get_bg_alpha ( ) const

return the current alpha value for clearing the background

Definition at line 319 of file context.cxx.

References bg_color_stack.

◆ get_bg_clr_idx()

unsigned int cgv::render::context::get_bg_clr_idx ( ) const

return the current index of the background color

Definition at line 332 of file context.cxx.

References current_background.

◆ get_bg_color()

vec4 cgv::render::context::get_bg_color ( ) const

return the current color value for clearing the background

Definition at line 302 of file context.cxx.

References bg_color_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_bg_color(), and push_bg_color().

◆ get_bg_depth()

float cgv::render::context::get_bg_depth ( ) const

return the current depth value for clearing the background

Definition at line 349 of file context.cxx.

References bg_depth_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_bg_depth(), and push_bg_depth().

◆ get_bg_stencil()

int cgv::render::context::get_bg_stencil ( ) const

return the current stencil value for clearing the background

Definition at line 366 of file context.cxx.

References bg_stencil_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_bg_stencil(), and push_bg_stencil().

◆ get_blend_state()

context::BlendState cgv::render::context::get_blend_state ( ) const

return the current blend state

Definition at line 1725 of file context.cxx.

References blend_state_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_blend_state(), and push_blend_state().

◆ get_buffer_list()

void cgv::render::context::get_buffer_list	(	frame_buffer_base &	fbb,
		bool &	depth_buffer,
		std::vector< int > &	buffers,
		int	offset = `0`
	)

staticprotected

Definition at line 2316 of file context.cxx.

◆ get_buffer_mask()

context::BufferMask cgv::render::context::get_buffer_mask ( ) const

return the current buffer mask

Definition at line 1773 of file context.cxx.

References buffer_mask_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_buffer_mask(), and push_buffer_mask().

◆ get_color()

const rgba & cgv::render::context::get_color ( ) const

return current color

Definition at line 1611 of file context.cxx.

References current_color.

◆ get_color_mask()

bvec4 cgv::render::context::get_color_mask ( ) const

get the color buffer mask

Definition at line 1789 of file context.cxx.

References buffer_mask_stack.

◆ get_cull_state()

CullingMode cgv::render::context::get_cull_state ( ) const

return the current culling state

Definition at line 1708 of file context.cxx.

References cull_state_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_cull_state(), and push_cull_state().

◆ get_current_font_face()

cgv::media::font::font_face_ptr cgv::render::context::get_current_font_face ( ) const

virtual

return the currently enabled font face

Reimplemented in cgv::render::gl::gl_context.

Definition at line 922 of file context.cxx.

References current_font_face.

Referenced by set_cursor().

◆ get_current_font_size()

float cgv::render::context::get_current_font_size ( ) const

virtual

return the size in pixels of the currently enabled font face

Reimplemented in cgv::render::gl::gl_context.

Definition at line 916 of file context.cxx.

References current_font_size.

Referenced by set_cursor().

◆ get_current_material()

const cgv::media::illum::surface_material * cgv::render::context::get_current_material ( ) const

return pointer to current material or nullptr if no current material is available

Definition at line 1605 of file context.cxx.

References current_material_ptr.

Referenced by cgv::render::render_info::draw().

◆ get_current_program()

shader_program_base * cgv::render::context::get_current_program ( ) const

check for current program, prepare it for rendering and return pointer to it

Definition at line 440 of file context.cxx.

References shader_program_stack.

Referenced by cgv::render::render_info::draw(), cgv::render::gl::gl_context::prepare_attributes(), and cgv::render::gl::gl_context::release_attributes().

◆ get_cursor()

void cgv::render::context::get_cursor	(	int &	x,
		int &	y
	)		const

virtual

return current cursor location in opengl coordinates with (0,0) in lower left corner

store the current cursor location in the passed references to x and y coordinate

Definition at line 2010 of file context.cxx.

References cursor_x.

◆ get_D()

dmatn cgv::render::context::get_D ( ) const

inline

Definition at line 1340 of file context.h.

◆ get_debug_render_passes()

bool cgv::render::context::get_debug_render_passes ( ) const

inline

check whether render passes are debugged

Definition at line 919 of file context.h.

◆ get_default_light_source()

const cgv::media::illum::light_source & cgv::render::context::get_default_light_source ( size_t i ) const

return i-th default light source

Definition at line 717 of file context.cxx.

References default_light_source.

◆ get_default_render_pass_flags()

RenderPassFlags cgv::render::context::get_default_render_pass_flags ( ) const

virtual

return the default render pass flags

Definition at line 766 of file context.cxx.

References default_render_flags.

◆ get_depth_mask()

bool cgv::render::context::get_depth_mask ( ) const

get the depth buffer mask

Definition at line 1781 of file context.cxx.

References buffer_mask_stack.

◆ get_depth_test_state()

context::DepthTestState cgv::render::context::get_depth_test_state ( ) const

return the current depth test state

Definition at line 1678 of file context.cxx.

References depth_test_state_stack.

Referenced by cgv::render::gl::gl_context::gl_context(), pop_depth_test_state(), and push_depth_test_state().

◆ get_device_matrix()

dmat4 cgv::render::context::get_device_matrix ( ) const

inline

return homogeneous 4x4 projection matrix, which transforms from clip to device space

Definition at line 1455 of file context.h.

◆ get_DPV()

dmatn cgv::render::context::get_DPV ( ) const

inline

Definition at line 1341 of file context.h.

◆ get_enabled_light_source_handle()

void * cgv::render::context::get_enabled_light_source_handle ( size_t i ) const

access to handle of i-th light source

Definition at line 671 of file context.cxx.

References enabled_light_source_handles.

Referenced by cgv::render::gl::gl_context::on_lights_changed(), and set_current_lights().

◆ get_gamma()

float cgv::render::context::get_gamma ( ) const

inline

query current gamma computed as average over gamma3 per channel values

Definition at line 1080 of file context.h.

References cgv::math::fvec< T, N >::x(), cgv::math::fvec< T, N >::y(), and cgv::math::fvec< T, N >::z().

Referenced by set_current_gamma().

◆ get_gamma3()

vec3 cgv::render::context::get_gamma3 ( ) const

inline

query current per color channel gamma

Definition at line 1082 of file context.h.

Referenced by set_current_gamma().

◆ get_gpu_vendor_id()

GPUVendorID cgv::render::context::get_gpu_vendor_id ( ) const

virtual

device information

Definition at line 230 of file context.cxx.

Referenced by cgv::render::shader_code::read_code().

◆ get_light_eye_position()

vec3 cgv::render::context::get_light_eye_position	(	const cgv::media::illum::light_source &	light,
		bool	place_now
	)		const

helper function to place lights

Definition at line 475 of file context.cxx.

References get_modelview_matrix().

Referenced by add_light_source(), and place_light_source().

◆ get_light_eye_spot_direction()

vec3 cgv::render::context::get_light_eye_spot_direction	(	const cgv::media::illum::light_source &	light,
		bool	place_now
	)		const

helper function to place spot lights

helper function to place lights

Definition at line 489 of file context.cxx.

References get_modelview_matrix().

Referenced by add_light_source(), and place_light_source().

◆ get_light_source()

const cgv::media::illum::light_source & cgv::render::context::get_light_source ( void * handle ) const

read access to light source

Definition at line 548 of file context.cxx.

References light_sources.

Referenced by cgv::render::gl::gl_context::on_lights_changed().

◆ get_light_source_status()

const context::light_source_status & cgv::render::context::get_light_source_status ( void * handle ) const

read access to light source status

Definition at line 555 of file context.cxx.

References light_sources.

◆ get_max_nr_enabled_light_sources()

unsigned cgv::render::context::get_max_nr_enabled_light_sources ( ) const

virtual

return maximum number of light sources, that can be enabled in parallel

Definition at line 659 of file context.cxx.

Referenced by cgv::render::gl::set_lighting_parameters().

◆ get_max_nr_lights()

unsigned cgv::render::context::get_max_nr_lights ( ) const

inline

Definition at line 1129 of file context.h.

◆ get_max_window_transformation_array_size()

virtual unsigned cgv::render::context::get_max_window_transformation_array_size ( ) const

pure virtual

query the maximum number of supported window transformations, which is at least 1

Implemented in cgv::render::gl::gl_context.

◆ get_model_point() [1/6]

vec3 cgv::render::context::get_model_point	(	const dvec3 &	p_window,
		const dmat4 &	modelview_projection_window_matrix
	)

static

compute model space 3D point from the given window space point and the given modelview_projection_window matrix

the function inversely transforms the window space point with the given modelview_projection_window matrix

Definition at line 1949 of file context.cxx.

◆ get_model_point() [2/6]

vec3 cgv::render::context::get_model_point ( const vec3 & p_window ) const

inline

compute model space 3D point from the given window space point

the function inversely transforms the window space 3D point with the current modelview_projection_window matrix

Definition at line 1447 of file context.h.

◆ get_model_point() [3/6]

vec3 cgv::render::context::get_model_point	(	int	x_window,
		int	y_window
	)		const

inline

compute model space 3D point from the given opengl pixel location (window location)

the function queries the window z coordinate from the depth buffer and inversely transforms the window space 3D point with the current modelview_projection_window matrix

Definition at line 1423 of file context.h.

Referenced by cgv::render::drawable::get_world_location().

◆ get_model_point() [4/6]

vec3 cgv::render::context::get_model_point	(	int	x_window,
		int	y_window,
		const dmat4 &	modelview_projection_window_matrix
	)		const

inline

compute model space 3D point from the given opengl pixel location (window location) and modelview_projection_window matrix

the function queries the window z coordinate from the depth buffer and inversely transforms the window space 3D point with the given modelview_projection_window matrix

Definition at line 1435 of file context.h.

◆ get_model_point() [5/6]

vec3 cgv::render::context::get_model_point	(	int	x_window,
		int	y_window,
		double	z_window
	)		const

inline

compute model space 3D point from the given opengl pixel location (window location)

the function inversely transforms the window space 3D point with the current modelview_projection_window matrix

Definition at line 1429 of file context.h.

◆ get_model_point() [6/6]

static vec3 cgv::render::context::get_model_point	(	int	x_window,
		int	y_window,
		double	z_window,
		const dmat4 &	modelview_projection_window_matrix
	)

inlinestatic

compute model space 3D point from the given opengl pixel location (window location) with the given modelview_projection_window matrix

the function inversely transforms the window space 3D point with the given modelview_projection_window matrix

Definition at line 1441 of file context.h.

◆ get_modelview_matrix()

virtual dmat4 cgv::render::context::get_modelview_matrix ( ) const

pure virtual

return homogeneous 4x4 viewing matrix, which transforms from world to eye space

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::gl_transparent_renderer::blend_texture_over_viewport(), cgv::plot::plot2d::draw(), cgv::render::clod_point_renderer::enable(), get_light_eye_position(), get_light_eye_spot_direction(), get_modelview_projection_device_matrix(), get_modelview_projection_window_matrix(), cgv::app::gizmo::handle(), mul_modelview_matrix(), and push_modelview_matrix().

◆ get_modelview_projection_device_matrix()

dmat4 cgv::render::context::get_modelview_projection_device_matrix ( ) const

return matrix to transfrom from model to device coordinates, i.e. the product of modelview, projection and device matrix in reversed order (device_matrix*projection_matrix*modelview_matrix)

return homogeneous 4x4 matrix, which transforms from world to device space

Definition at line 2017 of file context.cxx.

References get_modelview_matrix(), get_projection_matrix(), and get_window_matrix().

◆ get_modelview_projection_window_matrix()

dmat4 cgv::render::context::get_modelview_projection_window_matrix ( unsigned array_index = 0 ) const

return a homogeneous 4x4 matrix to transfrom from model to window coordinates, i.e. the product of modelview, projection and device matrix in reversed order (window_matrix*projection_matrix*modelview_matrix)

Definition at line 1943 of file context.cxx.

References get_modelview_matrix(), get_projection_matrix(), and get_window_matrix().

Referenced by put_cursor_coords().

◆ get_nr_default_light_sources()

size_t cgv::render::context::get_nr_default_light_sources ( ) const

inline

return number of default light sources

Definition at line 1158 of file context.h.

◆ get_nr_enabled_light_sources()

size_t cgv::render::context::get_nr_enabled_light_sources ( ) const

return the number of light sources

Definition at line 665 of file context.cxx.

References enabled_light_source_handles.

Referenced by cgv::render::gl::gl_context::on_lights_changed(), and set_current_lights().

◆ get_nr_light_sources()

size_t cgv::render::context::get_nr_light_sources ( ) const

return the number of light sources

Definition at line 469 of file context.cxx.

References light_sources.

◆ get_P()

dmatn cgv::render::context::get_P ( ) const

inline

Definition at line 1336 of file context.h.

◆ get_point_W() [1/6]

vec3 cgv::render::context::get_point_W ( const vec3 & p_D ) const

inline

compute a the location in world space of a device point.

Definition at line 1469 of file context.h.

◆ get_point_W() [2/6]

vec3 cgv::render::context::get_point_W	(	const vec3 &	p_D,
		const dmat4 &	MPD
	)		const

inline

compute a the location in world space of a device point.

Definition at line 1471 of file context.h.

◆ get_point_W() [3/6]

vec3 cgv::render::context::get_point_W	(	int	x_D,
		int	y_D
	)		const

inline

compute the location in world space of a device x/y-location. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.

Definition at line 1461 of file context.h.

◆ get_point_W() [4/6]

vec3 cgv::render::context::get_point_W	(	int	x_D,
		int	y_D,
		const dmat4 &	MPD
	)		const

inline

compute the location in world space of a device x/y-location by inversion of the given transformation from world to device space. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.

Definition at line 1463 of file context.h.

◆ get_point_W() [5/6]

vec3 cgv::render::context::get_point_W	(	int	x_D,
		int	y_D,
		double	z_D
	)		const

inline

compute the location in world space of a device point. For this the current world to device transformation is inverted.

Definition at line 1465 of file context.h.

◆ get_point_W() [6/6]

vec3 cgv::render::context::get_point_W	(	int	x_D,
		int	y_D,
		double	z_D,
		const dmat4 &	MPD
	)		const

inline

compute the location in world space of a device point by inversion of the given world to device transformation.

Definition at line 1467 of file context.h.

◆ get_projection_matrix()

virtual dmat4 cgv::render::context::get_projection_matrix ( ) const

pure virtual

return homogeneous 4x4 projection matrix, which transforms from eye to clip space

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::gl_transparent_renderer::blend_texture_over_viewport(), get_modelview_projection_device_matrix(), get_modelview_projection_window_matrix(), cgv::app::gizmo::handle(), mul_projection_matrix(), and push_projection_matrix().

◆ get_render_api()

virtual RenderAPI cgv::render::context::get_render_api ( ) const

pure virtual

return the used rendering API

Implemented in cgv::render::gl::gl_context.

◆ get_render_pass()

RenderPass cgv::render::context::get_render_pass ( ) const

virtual

return the current render pass

Definition at line 751 of file context.cxx.

References render_pass_stack, and cgv::render::RP_NONE.

Referenced by vr_view_interactor::after_finish(), and vr_view_interactor::init_frame().

◆ get_render_pass_flags()

RenderPassFlags cgv::render::context::get_render_pass_flags ( ) const

virtual

return the current render pass flags

Definition at line 758 of file context.cxx.

References render_pass_stack, and cgv::render::RPF_NONE.

Referenced by cgv::render::multi_pass_drawable::perform_render_pass(), and render_pass().

◆ get_render_pass_recursion_depth()

unsigned cgv::render::context::get_render_pass_recursion_depth ( ) const

return current render pass recursion depth

return the current render pass

Definition at line 745 of file context.cxx.

References render_pass_stack.

Referenced by cgv::render::multi_pass_drawable::initiate_render_pass_recursion(), cgv::render::multi_pass_drawable::multi_pass_ignore_finish(), and cgv::render::multi_pass_drawable::multi_pass_terminate().

◆ get_render_pass_user_data()

void * cgv::render::context::get_render_pass_user_data ( ) const

virtual

return the current render pass user data

Definition at line 779 of file context.cxx.

References render_pass_stack.

Referenced by cgv::render::multi_pass_drawable::multi_pass_ignore_finish().

◆ get_V()

dmatn cgv::render::context::get_V ( ) const

inline

Definition at line 1332 of file context.h.

◆ get_window_matrix()

dmat4 cgv::render::context::get_window_matrix ( unsigned array_index = 0 ) const

return a homogeneous 4x4 matrix to transform clip to window coordinates

return a homogeneous 4x4 matrix to transform clip to window coordinates, optionally specify for the case of multiple viewports/depth ranges

In window coordinates x- and y-coordinates correspond to opengl pixel coordinates with (0,0) in lower left corner and z corresponds to depth value stored in the depth buffer. This is the same convention as in gl_FragCoord and gl_FragDepth of GLSL. Optionally one can specify a window transformation index with the parameter array_index for the case when an array of window transformations is used.

Definition at line 1921 of file context.cxx.

References error(), cgv::utils::to_string(), and window_transformation_stack.

Referenced by get_modelview_projection_device_matrix(), and get_modelview_projection_window_matrix().

◆ get_window_transformation_array()

const std::vector< window_transformation > & cgv::render::context::get_window_transformation_array ( ) const

return the current window transformation array

Definition at line 1915 of file context.cxx.

References window_transformation_stack.

Referenced by cgv::app::gizmo::handle().

◆ get_window_z()

virtual double cgv::render::context::get_window_z	(	int	x_window,
		int	y_window
	)		const

pure virtual

read the window z-coordinate from the depth buffer for the given opengl x- and y-coordinates

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::drawable::get_world_location().

◆ get_z_D()

double cgv::render::context::get_z_D	(	int	x_D,
		int	y_D
	)		const

inline

read the window z-coordinate from the z-buffer for the given device x- and y-coordinates

Definition at line 1459 of file context.h.

◆ init_render_pass()

void cgv::render::context::init_render_pass ( )

virtual

Definition at line 240 of file context.cxx.

◆ is_light_source_enabled()

bool cgv::render::context::is_light_source_enabled ( void * handle )

check whether light source is enabled

Definition at line 676 of file context.cxx.

References cgv::base::action::end(), and light_sources.

◆ is_shader_file_cache_enabled()

bool cgv::render::context::is_shader_file_cache_enabled ( ) const

whether the shader file caches are enabled

Definition at line 463 of file context.cxx.

References use_shader_file_cache.

Referenced by cgv::render::shader_program::attach_files(), cgv::render::shader_program::attach_program(), and cgv::render::shader_code::read_code().

◆ mul_modelview_matrix()

void cgv::render::context::mul_modelview_matrix ( const dmat4 & MV )

virtual

multiply given matrix from right to current modelview matrix

Definition at line 1808 of file context.cxx.

References get_modelview_matrix(), and set_modelview_matrix().

Referenced by cgv::plot::plot2d::draw(), cgv::plot::plot3d::draw(), vr_test::draw(), cgv::render::gl::image_drawable::draw(), cgv::render::volume_renderer::draw(), cgv::render::gl::gl_context::draw_light_source(), vr_view_interactor::draw_vr_kits(), vr_test::finish_draw(), cgv::app::gizmo::finish_frame(), cgv::render::gl::gl_context::rotate_vector_to_target(), cgv::render::gl::gl_context::tesselate_arrow(), and cgv::render::gl::gl_context::tesselate_arrow().

◆ mul_projection_matrix()

void cgv::render::context::mul_projection_matrix ( const dmat4 & P )

virtual

multiply given matrix from right to current projection matrix

Definition at line 1831 of file context.cxx.

References get_projection_matrix(), and set_projection_matrix().

◆ on_lights_changed()

void cgv::render::context::on_lights_changed ( )

protectedvirtual

helper function to send light update events

Reimplemented in cgv::render::gl::gl_context.

Definition at line 632 of file context.cxx.

References auto_set_lights_in_current_shader_program, set_current_lights(), and shader_program_stack.

Referenced by add_light_source(), disable_light_source(), enable_light_source(), cgv::render::gl::gl_context::on_lights_changed(), place_light_source(), remove_light_source(), and set_light_source().

◆ output_stream()

std::ostream & cgv::render::context::output_stream ( )

virtual

returns an output stream whose output is printed at the current cursor location, which is managed by the context.

returns an output stream whose output is printed at the current cursor location

The coordinate system of the cursor location corresponds to opengl coordinates with (0,0) in lower left corner. The cursor position is updated during text drawing also by special characters like tab or new line and can be read back with the get_cursor method. Use the flush method of the output_stream to ensure that text has been drawn to the context.

Definition at line 901 of file context.cxx.

References out_stream.

Referenced by vr_test::init_frame(), and set_cursor().

◆ perform_screen_shot()

void cgv::render::context::perform_screen_shot ( )

virtual

Definition at line 250 of file context.cxx.

◆ place_light_source()

void cgv::render::context::place_light_source ( void * handle )

place the given light source relative to current model viel transformation

Definition at line 648 of file context.cxx.

References get_light_eye_position(), get_light_eye_spot_direction(), light_sources, and on_lights_changed().

Referenced by render_pass(), and set_light_source().

◆ pop_bg_accum_color()

void cgv::render::context::pop_bg_accum_color ( )

pop the top of the current background accumulation color from the stack

Definition at line 374 of file context.cxx.

References bg_accum_color_stack, get_bg_accum_color(), and set_bg_accum_color().

◆ pop_bg_color()

void cgv::render::context::pop_bg_color ( )

pop the top of the current background color from the stack

Definition at line 288 of file context.cxx.

References bg_color_stack, get_bg_color(), and set_bg_color().

Referenced by cgv::app::navigator::finish_draw().

◆ pop_bg_depth()

void cgv::render::context::pop_bg_depth ( )

pop the top of the current background depth value from the stack

Definition at line 340 of file context.cxx.

References bg_depth_stack, get_bg_depth(), and set_bg_depth().

◆ pop_bg_stencil()

void cgv::render::context::pop_bg_stencil ( )

pop the top of the current background stencil value from the stack

Definition at line 357 of file context.cxx.

References bg_stencil_stack, get_bg_stencil(), and set_bg_stencil().

◆ pop_blend_state()

void cgv::render::context::pop_blend_state ( )

pop the top of the current culling state from the stack

Definition at line 1720 of file context.cxx.

References blend_state_stack, get_blend_state(), and set_blend_state().

Referenced by cgv::render::rectangle_renderer::disable(), cgv::render::volume_renderer::disable(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ pop_buffer_mask()

void cgv::render::context::pop_buffer_mask ( )

pop the top of the current buffer mask from the stack

Definition at line 1768 of file context.cxx.

References buffer_mask_stack, get_buffer_mask(), and set_buffer_mask().

◆ pop_cull_state()

void cgv::render::context::pop_cull_state ( )

pop the top of the current culling state from the stack

Definition at line 1703 of file context.cxx.

References cull_state_stack, get_cull_state(), and set_cull_state().

Referenced by cgv::render::volume_renderer::disable(), and cgv::render::gl::gl_context::draw_light_source().

◆ pop_depth_test_state()

void cgv::render::context::pop_depth_test_state ( )

pop the top of the current depth test state from the stack

Definition at line 1673 of file context.cxx.

References depth_test_state_stack, get_depth_test_state(), and set_depth_test_state().

Referenced by cgv::render::volume_renderer::disable(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ pop_modelview_matrix()

void cgv::render::context::pop_modelview_matrix ( )

see push_V for an explanation

Definition at line 1814 of file context.cxx.

References modelview_matrix_stack, and set_modelview_matrix().

Referenced by cgv::render::gl::cover_screen(), cgv::plot::plot2d::draw(), cgv::plot::plot3d::draw(), vr_test::draw(), cgv::render::gl::image_drawable::draw(), cgv::render::volume_renderer::draw(), cgv::render::gl::gl_context::draw_light_source(), vr_view_interactor::draw_vr_kits(), cgv::app::navigator::finish_draw(), vr_test::finish_draw(), cgv::app::gizmo::finish_frame(), cgv::render::gl::gl_context::pop_pixel_coords(), cgv::render::gl::gl_context::tesselate_arrow(), and cgv::render::gl::gl_context::tesselate_arrow().

◆ pop_P()

void cgv::render::context::pop_P ( )

inline

Definition at line 1339 of file context.h.

◆ pop_pixel_coords()

virtual void cgv::render::context::pop_pixel_coords ( )

pure virtual

pop previously pushed transformation matrices from modelview and projection stacks

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::gl_performance_monitor::draw(), vr_test::init_frame(), and process_text().

◆ pop_projection_matrix()

void cgv::render::context::pop_projection_matrix ( )

see push_P for an explanation

Definition at line 1825 of file context.cxx.

References set_projection_matrix().

Referenced by cgv::render::gl::cover_screen(), cgv::app::navigator::finish_draw(), and cgv::render::gl::gl_context::pop_pixel_coords().

◆ pop_V()

void cgv::render::context::pop_V ( )

inline

Definition at line 1335 of file context.h.

◆ pop_window_transformation_array()

void cgv::render::context::pop_window_transformation_array ( )

virtual

restore previous viewport and depth range arrays defining the window transformations

recover the previous viewport and depth range settings; an error is emitted if the window_transformation stack becomes empty

An error is emitted when the method fails because the stack of window transformations would become empty, which is not allowed.

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1875 of file context.cxx.

References window_transformation_stack.

Referenced by cgv::render::frame_buffer::pop_viewport(), cgv::render::gl::gl_context::pop_window_transformation_array(), and cgv::render::gl::render_to_texture3D().

◆ process_text()

void cgv::render::context::process_text ( const std::string & text )

protectedvirtual

callback method for processing of text from the output stream

Definition at line 843 of file context.cxx.

References at_line_begin, current_font_size, cursor_x, draw_text(), nr_identations, pop_pixel_coords(), push_pixel_coords(), tab_size, and x_offset.

◆ push_bg_accum_color()

void cgv::render::context::push_bg_accum_color ( )

push a copy of the current background accumulation color onto the stack

Definition at line 370 of file context.cxx.

References bg_accum_color_stack, and get_bg_accum_color().

◆ push_bg_color()

void cgv::render::context::push_bg_color ( )

push a copy of the current background color onto the stack

Definition at line 284 of file context.cxx.

References bg_color_stack, and get_bg_color().

Referenced by cgv::app::navigator::finish_draw().

◆ push_bg_depth()

void cgv::render::context::push_bg_depth ( )

push a copy of the current background depth value onto the stack

Definition at line 336 of file context.cxx.

References bg_depth_stack, and get_bg_depth().

◆ push_bg_stencil()

void cgv::render::context::push_bg_stencil ( )

push a copy of the current background stencil value onto the stack

Definition at line 353 of file context.cxx.

References bg_stencil_stack, and get_bg_stencil().

◆ push_blend_state()

void cgv::render::context::push_blend_state ( )

push a copy of the current blend state onto the stack saved attributes: blend enablement, color and alpha source and destinatin functions

Definition at line 1716 of file context.cxx.

References blend_state_stack, and get_blend_state().

Referenced by cgv::render::rectangle_renderer::enable(), cgv::render::volume_renderer::enable(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ push_buffer_mask()

void cgv::render::context::push_buffer_mask ( )

push a copy of the current buffer mask onto the stack saved attributes: depth mask, color mask

Definition at line 1764 of file context.cxx.

References buffer_mask_stack, and get_buffer_mask().

◆ push_cull_state()

void cgv::render::context::push_cull_state ( )

push a copy of the current culling state onto the stack saved attributes: cull face enablement, cull face

Definition at line 1699 of file context.cxx.

References cull_state_stack, and get_cull_state().

Referenced by cgv::render::gl::gl_context::draw_light_source(), and cgv::render::volume_renderer::enable().

◆ push_depth_test_state()

void cgv::render::context::push_depth_test_state ( )

push a copy of the current depth test state onto the stack saved attributes: depth test enablement, depth test function

Definition at line 1669 of file context.cxx.

References depth_test_state_stack, and get_depth_test_state().

Referenced by cgv::render::volume_renderer::enable(), cgv::app::navigator::finish_draw(), and cgv::app::gizmo::finish_frame().

◆ push_modelview_matrix()

void cgv::render::context::push_modelview_matrix ( )

push the current viewing matrix onto a matrix stack for viewing matrices.

A software implementation is used for the matrix stack as some hardware stacks - i.e. in opengl - have strong limitations on their maximum size. The push_V method does not change the current viewing matrix similarly to the glPushMatrix function. Use pop_V() to restore the pushed viewing matrix into the current viewing matrix. Don't intermix these methods with the correspondong opengl or directx functions.

Definition at line 1802 of file context.cxx.

References get_modelview_matrix(), and modelview_matrix_stack.

Referenced by cgv::render::gl::cover_screen(), cgv::plot::plot2d::draw(), cgv::plot::plot3d::draw(), vr_test::draw(), cgv::render::gl::image_drawable::draw(), cgv::render::volume_renderer::draw(), cgv::render::gl::gl_context::draw_light_source(), vr_view_interactor::draw_vr_kits(), cgv::app::navigator::finish_draw(), vr_test::finish_draw(), cgv::app::gizmo::finish_frame(), cgv::render::gl::gl_context::push_pixel_coords(), cgv::render::gl::gl_context::tesselate_arrow(), and cgv::render::gl::gl_context::tesselate_arrow().

◆ push_P()

void cgv::render::context::push_P ( )

inline

Definition at line 1338 of file context.h.

◆ push_pixel_coords()

virtual void cgv::render::context::push_pixel_coords ( )

pure virtual

use this to push new modelview and new projection matrices onto the transformation stacks such that x and y coordinates correspond to opengl coordinates with (0,0) in lower left corner.

To transform mouse pointer coordinates to opengl coordinates use get_context()->get_height()-1-mouse_y.

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::gl_performance_monitor::draw(), vr_test::init_frame(), and process_text().

◆ push_projection_matrix()

void cgv::render::context::push_projection_matrix ( )

same as push_V but for the projection matrix - a different matrix stack is used.

Definition at line 1820 of file context.cxx.

References get_projection_matrix().

Referenced by cgv::render::gl::cover_screen(), cgv::app::navigator::finish_draw(), and cgv::render::gl::gl_context::push_pixel_coords().

◆ push_V()

void cgv::render::context::push_V ( )

inline

Definition at line 1334 of file context.h.

◆ push_window_transformation_array()

void cgv::render::context::push_window_transformation_array ( )

push a copy of the current viewport and depth range arrays defining the window transformations

Definition at line 1870 of file context.cxx.

References window_transformation_stack.

Referenced by cgv::render::frame_buffer::push_viewport(), and cgv::render::gl::render_to_texture3D().

◆ put_bg_accum_color()

void cgv::render::context::put_bg_accum_color ( float * rgba ) const

copy the current accumulation background rgba color into the given float array

Definition at line 391 of file context.cxx.

References bg_accum_color_stack.

◆ put_bg_color()

void cgv::render::context::put_bg_color ( float * rgba ) const

copy the current background rgba color into the given float array

Definition at line 306 of file context.cxx.

References bg_color_stack.

◆ put_cursor_coords()

void cgv::render::context::put_cursor_coords	(	const vecn &	p,
		int &	x,
		int &	y
	)		const

virtual

transform point p in current world coordinates into opengl coordinates with (0,0) in lower left corner and put x and y coordinates into the passed variables

transform point p into cursor coordinates and put x and y coordinates into the passed variables

Definition at line 1971 of file context.cxx.

References get_modelview_projection_window_matrix(), and cgv::math::vec< T >::size().

Referenced by set_cursor().

◆ read_frame_buffer()

virtual bool cgv::render::context::read_frame_buffer	(	data::data_view &	dv,
		unsigned int	x = `0`,
		unsigned int	y = `0`,
		FrameBufferType	buffer_type = `FB_BACK`,
		cgv::type::info::TypeId	type = `cgv::type::info::TI_UINT8`,
		data::ComponentFormat	cf = `data::CF_RGB`,
		int	w = `-1`,
		int	h = `-1`
	)

pure virtual

read the current frame buffer or a rectangular region of it into the given data view.

If no format is associated with the data view, a new format is created and assigned to the data view.

If width and height are not specified in the format associated with the data view or in the parameters, they are determined from the current viewport size.

x and y specify the pixel offset of the region measured from the left upper corner.

The parameter buffer_type is only used in case of reading color or alpha components and specifies from which color buffer to read the data.

Implemented in cgv::render::gl::gl_context.

Referenced by write_frame_buffer_to_image(), and cgv::render::texture::write_to_file().

◆ recover_from_external_frame_buffer_change()

virtual void cgv::render::context::recover_from_external_frame_buffer_change ( void * cgv_fbo_storage )

pure virtual

restore cgv frame buffer to the state before the external change

Implemented in cgv::render::gl::gl_context.

Referenced by vr_view_interactor::after_finish().

◆ recover_from_external_viewport_change()

virtual void cgv::render::context::recover_from_external_viewport_change ( const ivec4 & cgv_viewport_storage )

pure virtual

restore cgv viewport to the state before the external change

Implemented in cgv::render::gl::gl_context.

Referenced by vr_view_interactor::after_finish().

◆ recreate_context()

bool cgv::render::context::recreate_context ( )

virtual

recreate context based on current context config settings

Definition at line 59 of file context.cxx.

◆ ref_default_shader_program()

virtual shader_program & cgv::render::context::ref_default_shader_program ( bool texture_support = false )

pure virtual

return a reference to a shader program used to render without illumination

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::cover_screen(), cgv::render::gl::gl_performance_monitor::draw(), vr_test::draw(), cgv::render::gl::image_drawable::draw(), vr_view_interactor::draw_action_zone(), and vr_test::finish_draw().

◆ ref_surface_shader_program()

virtual shader_program & cgv::render::context::ref_surface_shader_program ( bool texture_support = false )

pure virtual

return a reference to the default shader program used to render surfaces

Implemented in cgv::render::gl::gl_context.

Referenced by cgv::render::gl::gl_implicit_surface_drawable_base::draw(), cgv::render::gl::gl_implicit_surface_drawable_base::draw_implicit_surface(), vr::get_vrmesh_render_info(), vr_test::init(), and cgv::render::gl::mesh_drawable::init_frame().

◆ remove_light_source()

bool cgv::render::context::remove_light_source ( void * handle )

remove a light source by handle and whether it existed

Definition at line 528 of file context.cxx.

References enabled_light_source_handles, cgv::base::action::end(), light_sources, and on_lights_changed().

◆ render_pass()

void cgv::render::context::render_pass	(	RenderPass	render_pass = `RP_MAIN`,
		RenderPassFlags	render_pass_flags = `RPF_ALL`,
		void *	user_data = `0`
	)

virtual

◆ set_bg_accum_alpha()

void cgv::render::context::set_bg_accum_alpha ( float a )

set a user defined background alpha value for the accumulation buffer

Definition at line 399 of file context.cxx.

References bg_accum_color_stack.

◆ set_bg_accum_color() [1/2]

void cgv::render::context::set_bg_accum_color	(	float	r,
		float	g,
		float	b,
		float	a
	)

set a user defined background color for the accumulation buffer

Definition at line 383 of file context.cxx.

References set_bg_accum_color().

◆ set_bg_accum_color() [2/2]

void cgv::render::context::set_bg_accum_color ( vec4 rgba )

virtual

set a user defined background color for the accumulation buffer

Reimplemented in cgv::render::gl::gl_context.

Definition at line 379 of file context.cxx.

References bg_accum_color_stack.

Referenced by pop_bg_accum_color(), set_bg_accum_color(), and cgv::render::gl::gl_context::set_bg_accum_color().

◆ set_bg_alpha()

void cgv::render::context::set_bg_alpha ( float a )

set a user defined background alpha value

Definition at line 314 of file context.cxx.

References bg_color_stack.

◆ set_bg_clr_idx()

void cgv::render::context::set_bg_clr_idx ( unsigned int idx )

set an indexed background color

Definition at line 323 of file context.cxx.

References current_background, and set_bg_color().

◆ set_bg_color() [1/2]

void cgv::render::context::set_bg_color	(	float	r,
		float	g,
		float	b,
		float	a
	)

set a user defined background color

Definition at line 297 of file context.cxx.

References set_bg_color().

◆ set_bg_color() [2/2]

void cgv::render::context::set_bg_color ( vec4 rgba )

virtual

set a user defined background color

Reimplemented in cgv::render::gl::gl_context.

Definition at line 293 of file context.cxx.

References bg_color_stack.

Referenced by cgv::app::navigator::finish_draw(), pop_bg_color(), set_bg_clr_idx(), set_bg_color(), and cgv::render::gl::gl_context::set_bg_color().

◆ set_bg_depth()

void cgv::render::context::set_bg_depth ( float d )

virtual

set a user defined background depth value

Reimplemented in cgv::render::gl::gl_context.

Definition at line 345 of file context.cxx.

References bg_depth_stack.

Referenced by pop_bg_depth(), and cgv::render::gl::gl_context::set_bg_depth().

◆ set_bg_stencil()

void cgv::render::context::set_bg_stencil ( int s )

virtual

set a user defined background stencil value

Reimplemented in cgv::render::gl::gl_context.

Definition at line 362 of file context.cxx.

References bg_stencil_stack.

Referenced by pop_bg_stencil(), and cgv::render::gl::gl_context::set_bg_stencil().

◆ set_blend_func()

void cgv::render::context::set_blend_func	(	BlendFunction	src_factor,
		BlendFunction	dst_factor
	)

virtual

set the blend function

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1733 of file context.cxx.

References blend_state_stack, cgv::render::context::BlendState::dst_alpha, cgv::render::context::BlendState::dst_color, cgv::render::context::BlendState::src_alpha, and cgv::render::context::BlendState::src_color.

Referenced by cgv::app::navigator::finish_draw(), cgv::render::gl::gl_context::set_blend_func(), set_blend_func_back_to_front(), and set_blend_func_front_to_back().

◆ set_blend_func_back_to_front()

void cgv::render::context::set_blend_func_back_to_front ( )

set the default blend function for back to front blending

Definition at line 1752 of file context.cxx.

References set_blend_func().

Referenced by cgv::render::rectangle_renderer::enable(), cgv::render::volume_renderer::enable(), and cgv::app::gizmo::finish_frame().

◆ set_blend_func_front_to_back()

void cgv::render::context::set_blend_func_front_to_back ( )

set the default blend function for front to back blending

Definition at line 1749 of file context.cxx.

References set_blend_func().

◆ set_blend_func_separate()

void cgv::render::context::set_blend_func_separate	(	BlendFunction	src_color_factor,
		BlendFunction	dst_color_factor,
		BlendFunction	src_alpha_factor,
		BlendFunction	dst_alpha_factor
	)

virtual

set the blend function separately for color and alpha

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1741 of file context.cxx.

References blend_state_stack, cgv::render::context::BlendState::dst_alpha, cgv::render::context::BlendState::dst_color, cgv::render::context::BlendState::src_alpha, and cgv::render::context::BlendState::src_color.

Referenced by cgv::app::navigator::finish_draw(), and cgv::render::gl::gl_context::set_blend_func_separate().

◆ set_blend_state()

void cgv::render::context::set_blend_state ( BlendState state )

virtual

set the complete blend state

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1729 of file context.cxx.

References blend_state_stack.

Referenced by pop_blend_state(), and cgv::render::gl::gl_context::set_blend_state().

◆ set_buffer_mask()

void cgv::render::context::set_buffer_mask ( BufferMask mask )

virtual

set the buffer mask for depth and color buffers

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1777 of file context.cxx.

References buffer_mask_stack.

Referenced by pop_buffer_mask(), and cgv::render::gl::gl_context::set_buffer_mask().

◆ set_color() [1/2]

virtual void cgv::render::context::set_color	(	const rgb &	clr,
		float	opacity = `1.0f`
	)

inlinevirtual

set the current color

Definition at line 1092 of file context.h.

References set_color().

Referenced by set_color().

◆ set_color() [2/2]

void cgv::render::context::set_color ( const rgba & clr )

virtual

set the current color

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1617 of file context.cxx.

References current_color, cgv::render::shader_program::set_attribute(), and shader_program_stack.

Referenced by cgv::render::gl::cover_screen(), vr_test::draw(), cgv::render::gl::image_drawable::draw(), cgv::render::gl::gl_implicit_surface_drawable_base::draw(), vr_view_interactor::draw_action_zone(), cgv::render::line_renderer::enable(), cgv::render::surface_renderer::enable(), vr_test::finish_draw(), and cgv::render::gl::gl_implicit_surface_drawable_base::finish_frame().

◆ set_color_mask()

void cgv::render::context::set_color_mask ( bvec4 flags )

virtual

set the color buffer mask

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1794 of file context.cxx.

References buffer_mask_stack.

Referenced by cgv::render::gl::gl_context::set_color_mask().

◆ set_cull_state()

void cgv::render::context::set_cull_state ( CullingMode culling_mode )

virtual

set the culling state

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1712 of file context.cxx.

References cull_state_stack.

Referenced by cgv::render::volume_renderer::enable(), pop_cull_state(), and cgv::render::gl::gl_context::set_cull_state().

◆ set_current_gamma()

void cgv::render::context::set_current_gamma ( shader_program & prog ) const

set the shader program gamma values

Definition at line 1580 of file context.cxx.

References get_gamma(), get_gamma3(), cgv::render::shader_program::get_uniform_location(), and cgv::render::shader_program::set_uniform().

Referenced by set_gamma3().

◆ set_current_lights()

void cgv::render::context::set_current_lights ( shader_program & prog ) const

set the shader program lights to the currently enabled lights

Definition at line 617 of file context.cxx.

References get_enabled_light_source_handle(), get_nr_enabled_light_sources(), light_source_handle, light_sources, cgv::render::shader_program::set_light_uniform(), cgv::render::shader_program::set_uniform(), and cgv::utils::to_string().

Referenced by on_lights_changed().

◆ set_current_material()

void cgv::render::context::set_current_material ( shader_program & prog ) const

set the shader program material to the currently enabled material

Definition at line 605 of file context.cxx.

References current_material_is_textured, current_material_ptr, and cgv::render::shader_program::set_material_uniform().

◆ set_current_view()

void cgv::render::context::set_current_view	(	shader_program &	prog,
		bool	modelview_deps = `true`,
		bool	projection_deps = `true`
	)		const

set the shader program view matrices to the currently enabled view matrices

Definition at line 576 of file context.cxx.

References modelview_matrix_stack, and cgv::render::shader_program::set_uniform().

Referenced by set_modelview_matrix(), and set_projection_matrix().

◆ set_cursor() [1/2]

void cgv::render::context::set_cursor	(	const vecn &	pos,
		const std::string &	text = `""`,
		TextAlignment	ta = `TA_BOTTOM_LEFT`,
		int	x_offset = `0`,
		int	y_offset = `0`
	)

virtual

flush output_stream and set the current text position from a 3D or 4D location in current world coordinates.

sets the current text ouput position

These are transformed to opengl coordinates opengl coordinates with (0,0) in lower left corner using the put_cursor_coords method. If the optional parameters are given, update the cursor location such that the given text alignment is achieved. x_offset and y_offset are in pixel and y points upward.

Definition at line 1984 of file context.cxx.

References get_current_font_face(), get_current_font_size(), put_cursor_coords(), set_cursor(), and x_offset.

◆ set_cursor() [2/2]

void cgv::render::context::set_cursor	(	int	x,
		int	y
	)

virtual

flush the output_stream and set a new cursor position given in opengl coordinates with (0,0) in lower left corner

set a new cursor position, which is only valid between calls of push_pixel_coords and pop_pixel_coords

Definition at line 1959 of file context.cxx.

References at_line_begin, cursor_x, nr_identations, output_stream(), and x_offset.

Referenced by vr_test::init_frame(), and set_cursor().

◆ set_debug_render_passes()

void cgv::render::context::set_debug_render_passes ( bool _debug )

set flag whether to debug render passes

Definition at line 785 of file context.cxx.

References debug_render_passes.

◆ set_default_light_source()

void cgv::render::context::set_default_light_source	(	size_t	i,
		const cgv::media::illum::light_source &	ls
	)

set i-th default light source

Definition at line 723 of file context.cxx.

References default_light_source.

◆ set_default_render_pass_flags()

void cgv::render::context::set_default_render_pass_flags ( RenderPassFlags rpf )

virtual

return the default render pass flags

Definition at line 771 of file context.cxx.

References default_render_flags, in_render_process(), and post_redraw().

◆ set_depth_func()

void cgv::render::context::set_depth_func ( CompareFunction func )

virtual

set the depth test function

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1686 of file context.cxx.

References depth_test_state_stack.

Referenced by cgv::render::gl::gl_context::set_depth_func().

◆ set_depth_mask()

void cgv::render::context::set_depth_mask ( bool flag )

virtual

set the depth buffer mask

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1785 of file context.cxx.

References buffer_mask_stack.

Referenced by cgv::render::gl::gl_context::set_depth_mask().

◆ set_depth_range()

void cgv::render::context::set_depth_range	(	const dvec2 &	depth_range = `dvec2(0, 1)`,
		int	array_index = `-1`
	)

virtual

set the current depth range or one of the depth ranges in the window transformation array

The behaviour with respect to parameters array_index is the same as in the set_viewport() method.

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1908 of file context.cxx.

References window_transformation_stack.

Referenced by cgv::render::frame_buffer::push_viewport(), and cgv::render::gl::gl_context::set_depth_range().

◆ set_depth_test_state()

void cgv::render::context::set_depth_test_state ( DepthTestState state )

virtual

set the depth test state

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1682 of file context.cxx.

References depth_test_state_stack.

Referenced by pop_depth_test_state(), and cgv::render::gl::gl_context::set_depth_test_state().

◆ set_gamma()

void cgv::render::context::set_gamma ( float _gamma )

set the current per channel gamma values to single value

Definition at line 1575 of file context.cxx.

References set_gamma3().

Referenced by vr_test::init().

◆ set_gamma3()

void cgv::render::context::set_gamma3 ( const vec3 & _gamma3 )

virtual

set the current per channel gamma values to single value

Definition at line 1590 of file context.cxx.

References auto_set_gamma_in_current_shader_program, gamma3, set_current_gamma(), and shader_program_stack.

Referenced by set_gamma().

◆ set_light_source()

void cgv::render::context::set_light_source	(	void *	handle,
		const cgv::media::illum::light_source &	light,
		bool	place_now = `true`
	)

set light source newly

Definition at line 563 of file context.cxx.

References light_sources, on_lights_changed(), and place_light_source().

◆ set_material()

void cgv::render::context::set_material ( const cgv::media::illum::surface_material & mat )

virtual

set the current material

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1632 of file context.cxx.

References auto_set_material_in_current_shader_program, current_material_is_textured, current_material_ptr, cgv::render::shader_program::set_material_uniform(), and shader_program_stack.

Referenced by cgv::render::render_info::draw(), cgv::render::gl::gl_implicit_surface_drawable_base::draw_implicit_surface(), cgv::render::surface_renderer::enable(), and cgv::render::gl::gl_context::set_material().

◆ set_modelview_matrix()

void cgv::render::context::set_modelview_matrix ( const dmat4 & MV )

virtual

set the current modelview matrix, which transforms from world to eye space

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1836 of file context.cxx.

References auto_set_view_in_current_shader_program, modelview_matrix_stack, set_current_view(), and shader_program_stack.

Referenced by cgv::render::gl::cover_screen(), cgv::app::navigator::finish_draw(), vr_view_interactor::init_frame(), mul_modelview_matrix(), pop_modelview_matrix(), and cgv::render::gl::gl_context::set_modelview_matrix().

◆ set_P()

void cgv::render::context::set_P ( const dmatn & P ) const

inline

Definition at line 1337 of file context.h.

◆ set_projection_matrix()

void cgv::render::context::set_projection_matrix ( const dmat4 & P )

virtual

set the current projection matrix, which transforms from eye to clip space

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1853 of file context.cxx.

References auto_set_view_in_current_shader_program, set_current_view(), and shader_program_stack.

Referenced by cgv::render::gl::cover_screen(), cgv::app::navigator::finish_draw(), vr_view_interactor::init_frame(), mul_projection_matrix(), pop_projection_matrix(), and cgv::render::gl::gl_context::set_projection_matrix().

◆ set_textured_material()

void cgv::render::context::set_textured_material ( const textured_material & mat )

virtual

set the current material

Definition at line 1651 of file context.cxx.

References auto_set_material_in_current_shader_program, current_material_is_textured, current_material_ptr, cgv::render::shader_program::set_textured_material_uniform(), and shader_program_stack.

Referenced by cgv::render::gl::gl_context::enable_material().

◆ set_V()

void cgv::render::context::set_V ( const dmatn & V ) const

inline

Definition at line 1333 of file context.h.

◆ set_viewport()

void cgv::render::context::set_viewport	(	const ivec4 &	viewport,
		int	array_index = `-1`
	)

virtual

set the current viewport or one of the viewports in the window transformation array

If the parameter array_index is -1 (for example by not specifying it), the current window transformation array is resized to a single viewport and the viewport is set to the integer vector of pixel values in the viewport parameter: [x0,y0,width,height]. If an array_index >= 0 is specified, the window transformation array is resized such that the specified array_index is valid and the corresponding viewport is set. If resizing generates new viewports or depth ranges, the default values are set, which are [0,0,widthOfContext, heightOfContext] for viewports and [0.0,1.0] for depth ranges. If resizing increases the number of viewport transformations over the allowed number, an error is issued.

Reimplemented in cgv::render::gl::gl_context.

Definition at line 1901 of file context.cxx.

References window_transformation_stack.

Referenced by cgv::render::frame_buffer::push_viewport(), cgv::render::gl::render_to_texture3D(), and cgv::render::gl::gl_context::set_viewport().

◆ shader_program_destruct()

bool cgv::render::context::shader_program_destruct ( shader_program_base & spb ) const

protectedvirtual

Definition at line 2200 of file context.cxx.

◆ shader_program_disable()

bool cgv::render::context::shader_program_disable ( shader_program_base & spb )

protectedvirtual

Definition at line 2181 of file context.cxx.

◆ shader_program_enable()

bool cgv::render::context::shader_program_enable ( shader_program_base & spb )

protectedvirtual

Definition at line 2166 of file context.cxx.

◆ shader_program_link()

bool cgv::render::context::shader_program_link ( shader_program_base & spb ) const

protectedvirtual

Definition at line 2139 of file context.cxx.

◆ sRGB_framebuffer_enabled()

bool cgv::render::context::sRGB_framebuffer_enabled ( )

inline

check whether sRGB framebuffer is enabled

Definition at line 1086 of file context.h.

◆ tesselate_arrow() [1/2]

void cgv::render::context::tesselate_arrow	(	const dvec3 &	start,
		const dvec3 &	end,
		double	aspect = `0.1f`,
		double	rel_tip_radius = `2.0f`,
		double	tip_aspect = `0.3f`,
		int	res = `25`,
		bool	edges = `false`
	)

virtual

define length and direction from start and end point and draw an arrow

Reimplemented in cgv::render::gl::gl_context.

Definition at line 2027 of file context.cxx.

◆ tesselate_arrow() [2/2]

void cgv::render::context::tesselate_arrow	(	double	length = `1`,
		double	aspect = `0.1`,
		double	rel_tip_radius = `2.0`,
		double	tip_aspect = `0.3`,
		int	res = `25`,
		bool	edges = `false`
	)

virtual

tesselate an arrow from the origin in z-direction

An arrow of length L is composed of a cylinder of radius R and a cone of radius r. The parameters are

Parameters

[in]	length	the total length of the radius
[in]	aspect	is defined as R/L
[in]	rel_tip_radius	is defined as r/R
[in]	tip_aspect	is defined as r/l

Reimplemented in cgv::render::gl::gl_context.

Definition at line 2022 of file context.cxx.

◆ tesselate_box()

void cgv::render::context::tesselate_box	(	const cgv::media::axis_aligned_box< double, 3 > &	B,
		bool	flip_normals,
		bool	edges = `false`
	)		const

virtual

tesselate an axis aligned box

tessellate an axis aligned box in single precision

Definition at line 1107 of file context.cxx.

References draw_edges_of_faces(), draw_faces(), cgv::media::axis_aligned_box< T, N >::get_max_pnt(), and cgv::media::axis_aligned_box< T, N >::get_min_pnt().

◆ tesselate_unit_cone()

void cgv::render::context::tesselate_unit_cone	(	int	resolution = `25`,
		bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a cone of radius 1

tessellate a cone of radius 1

Definition at line 1208 of file context.cxx.

References draw_edges_of_strip_or_fan(), and draw_strip_or_fan().

Referenced by cgv::render::gl::gl_context::draw_light_source(), and cgv::render::gl::gl_context::tesselate_arrow().

◆ tesselate_unit_cube()

void cgv::render::context::tesselate_unit_cube	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a unit cube with extent from [-1,-1,-1] to [1,1,1] with face normals that can be flipped

tessellate a unit cube with extent from [-1,-1,-1] to [1,1,1] with face normals that can be flipped

Definition at line 1054 of file context.cxx.

References draw_edges_of_faces(), and draw_faces().

◆ tesselate_unit_cylinder()

void cgv::render::context::tesselate_unit_cylinder	(	int	resolution = `25`,
		bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a cylinder of radius 1

tessellate a cylinder of radius 1

Definition at line 1252 of file context.cxx.

References draw_edges_of_strip_or_fan(), and draw_strip_or_fan().

Referenced by cgv::render::gl::gl_context::tesselate_arrow().

◆ tesselate_unit_disk()

void cgv::render::context::tesselate_unit_disk	(	int	resolution = `25`,
		bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a circular disk of radius 1

tessellate a circular disk of radius 1

Definition at line 1176 of file context.cxx.

References draw_edges_of_faces(), and draw_faces().

Referenced by cgv::render::gl::gl_context::tesselate_arrow().

◆ tesselate_unit_dodecahedron()

void cgv::render::context::tesselate_unit_dodecahedron	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a dodecahedron

tessellate a dodecahedron

Definition at line 1565 of file context.cxx.

References cgv::render::tesselate_unit_dodecahedron_or_icosahedron().

◆ tesselate_unit_icosahedron()

void cgv::render::context::tesselate_unit_icosahedron	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate an icosahedron

tessellate an icosahedron

Definition at line 1570 of file context.cxx.

References cgv::render::tesselate_unit_dodecahedron_or_icosahedron().

◆ tesselate_unit_octahedron()

void cgv::render::context::tesselate_unit_octahedron	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a octahedron

tessellate a octahedron

Definition at line 1450 of file context.cxx.

References draw_edges_of_faces(), and draw_faces().

◆ tesselate_unit_prism()

void cgv::render::context::tesselate_unit_prism	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a prism

tessellate a prism

Definition at line 1141 of file context.cxx.

References draw_edges_of_faces(), draw_edges_of_strip_or_fan(), draw_faces(), and draw_strip_or_fan().

◆ tesselate_unit_sphere()

void cgv::render::context::tesselate_unit_sphere	(	int	resolution = `25`,
		bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a sphere of radius 1

tessellate a sphere of radius 1

Definition at line 1344 of file context.cxx.

References draw_edges_of_strip_or_fan(), and draw_strip_or_fan().

Referenced by cgv::render::gl::gl_context::draw_light_source().

◆ tesselate_unit_square()

void cgv::render::context::tesselate_unit_square	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a unit square in the xy-plane with texture coordinates

tessellate a unit square

Definition at line 1423 of file context.cxx.

References draw_edges_of_faces(), and draw_faces().

Referenced by cgv::render::gl::image_drawable::draw(), and vr_test::finish_draw().

◆ tesselate_unit_tetrahedron()

void cgv::render::context::tesselate_unit_tetrahedron	(	bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a tetrahedron

tessellate a tetrahedron

Definition at line 1395 of file context.cxx.

References draw_edges_of_faces(), and draw_faces().

◆ tesselate_unit_torus()

void cgv::render::context::tesselate_unit_torus	(	float	minor_radius = `0.2f`,
		int	resolution = `25`,
		bool	flip_normals = `false`,
		bool	edges = `false`
	)

tesselate a torus with major radius of one and given minor radius

tessellate a torus with major radius of one and given minor radius

Definition at line 1294 of file context.cxx.

References draw_edges_of_strip_or_fan(), and draw_strip_or_fan().

◆ write_frame_buffer_to_image()

bool cgv::render::context::write_frame_buffer_to_image	(	const std::string &	file_name,
		data::ComponentFormat	cf = `data::CF_RGB`,
		FrameBufferType	buffer_type = `FB_BACK`,
		unsigned int	x = `0`,
		unsigned int	y = `0`,
		int	w = `-1`,
		int	h = `-1`,
		float	depth_offset = `0.9f`,
		float	depth_scale = `10.0f`
	)

write the content of the frame buffer to an image file.

write the content of a buffer to an image file

In case of writing a depth buffer a the depth offset is subtracted from the value and scaled by the depth scale before conversion to an unsigned int of bit depth 8 is performed.

Definition at line 929 of file context.cxx.

References cgv::data::CF_D, cgv::data::CF_S, cgv::data::data_view_base::get_format(), cgv::data::data_format::get_height(), cgv::data::data_view_impl< D, P >::get_ptr(), cgv::data::data_format::get_width(), read_frame_buffer(), cgv::data::data_format::set_height(), cgv::data::data_format::set_width(), cgv::type::info::TI_FLT32, cgv::type::info::TI_UINT8, and cgv::media::image::image_writer::write_image().

Friends And Related Symbol Documentation

◆ attribute_array_binding

friend class CGV_API attribute_array_binding

friend

Definition at line 633 of file context.h.

◆ attribute_array_manager

friend class CGV_API attribute_array_manager

friend

Definition at line 626 of file context.h.

◆ frame_buffer

friend class CGV_API frame_buffer

friend

Definition at line 630 of file context.h.

◆ render_buffer

friend class CGV_API render_buffer

friend

Definition at line 629 of file context.h.

◆ render_component

friend class CGV_API render_component

friend

Definition at line 627 of file context.h.

◆ shader_code

friend class CGV_API shader_code

friend

Definition at line 631 of file context.h.

◆ shader_program

friend class CGV_API shader_program

friend

Definition at line 632 of file context.h.

◆ shader_program_base

friend class shader_program_base

friend

Definition at line 673 of file context.h.

◆ texture

friend class CGV_API texture

friend

Definition at line 628 of file context.h.

◆ vertex_buffer

friend class CGV_API vertex_buffer

friend

Definition at line 634 of file context.h.

Member Data Documentation

◆ at_line_begin

bool cgv::render::context::at_line_begin

protected

store whether we are at the beginning of the line

Definition at line 796 of file context.h.

Referenced by context(), process_text(), and set_cursor().

◆ attribute_array_binding_stack

std::stack<attribute_array_binding_base*> cgv::render::context::attribute_array_binding_stack

protected

stack of currently enabled attribute array binding

Definition at line 737 of file context.h.

◆ auto_set_gamma_in_current_shader_program

bool cgv::render::context::auto_set_gamma_in_current_shader_program

protected

whether to automatically set gamma in current shader program, defaults to true

Definition at line 684 of file context.h.

Referenced by context(), and set_gamma3().

◆ auto_set_lights_in_current_shader_program

bool cgv::render::context::auto_set_lights_in_current_shader_program

protected

whether to automatically set lights in current shader program, defaults to true

Definition at line 680 of file context.h.

Referenced by context(), and on_lights_changed().

◆ auto_set_material_in_current_shader_program

bool cgv::render::context::auto_set_material_in_current_shader_program

protected

whether to automatically set material in current shader program, defaults to true

Definition at line 682 of file context.h.

Referenced by context(), set_material(), and set_textured_material().

◆ auto_set_view_in_current_shader_program

bool cgv::render::context::auto_set_view_in_current_shader_program

protected

whether to automatically set viewing matrixes in current shader program, defaults to true

Definition at line 678 of file context.h.

Referenced by context(), set_modelview_matrix(), and set_projection_matrix().

◆ bg_accum_color_stack

std::stack<vec4> cgv::render::context::bg_accum_color_stack

protected

stack of background accumulation colors

Definition at line 707 of file context.h.

Referenced by context(), get_bg_accum_alpha(), get_bg_accum_color(), pop_bg_accum_color(), push_bg_accum_color(), put_bg_accum_color(), set_bg_accum_alpha(), and set_bg_accum_color().

◆ bg_color_stack

std::stack<vec4> cgv::render::context::bg_color_stack

protected

stack of background colors

Definition at line 701 of file context.h.

Referenced by context(), get_bg_alpha(), get_bg_color(), pop_bg_color(), push_bg_color(), put_bg_color(), set_bg_alpha(), and set_bg_color().

◆ bg_depth_stack

std::stack<float> cgv::render::context::bg_depth_stack

protected

stack of background depth values

Definition at line 703 of file context.h.

Referenced by context(), get_bg_depth(), pop_bg_depth(), push_bg_depth(), and set_bg_depth().

◆ bg_stencil_stack

std::stack<int> cgv::render::context::bg_stencil_stack

protected

stack of background stencil values

Definition at line 705 of file context.h.

Referenced by context(), get_bg_stencil(), pop_bg_stencil(), push_bg_stencil(), and set_bg_stencil().

◆ blend_state_stack

std::stack<BlendState> cgv::render::context::blend_state_stack

protected

stack of blend states

Definition at line 714 of file context.h.

Referenced by context(), disable_blending(), enable_blending(), get_blend_state(), pop_blend_state(), push_blend_state(), set_blend_func(), set_blend_func_separate(), and set_blend_state().

◆ buffer_mask_stack

std::stack<BufferMask> cgv::render::context::buffer_mask_stack

protected

stack of buffer masks

Definition at line 716 of file context.h.

Referenced by context(), get_buffer_mask(), get_color_mask(), get_depth_mask(), pop_buffer_mask(), push_buffer_mask(), set_buffer_mask(), set_color_mask(), and set_depth_mask().

◆ cull_state_stack

std::stack<CullingMode> cgv::render::context::cull_state_stack

protected

stack of culling mode states

Definition at line 712 of file context.h.

Referenced by context(), get_cull_state(), pop_cull_state(), push_cull_state(), and set_cull_state().

◆ current_background

int cgv::render::context::current_background

protected

current back ground color index

Definition at line 780 of file context.h.

Referenced by context(), get_bg_clr_idx(), and set_bg_clr_idx().

◆ current_color

rgba cgv::render::context::current_color

protected

current color value

Definition at line 694 of file context.h.

Referenced by context(), get_color(), set_color(), and cgv::render::gl::gl_context::set_color().

◆ current_font_face

cgv::media::font::font_face_ptr cgv::render::context::current_font_face

protected

store current font

Definition at line 788 of file context.h.

Referenced by draw_text(), enable_font_face(), get_current_font_face(), and cgv::render::gl::gl_context::get_current_font_face().

◆ current_font_size

float cgv::render::context::current_font_size

protected

store current font size

Definition at line 786 of file context.h.

Referenced by context(), enable_font_face(), get_current_font_size(), cgv::render::gl::gl_context::get_current_font_size(), and process_text().

◆ current_material_is_textured

bool cgv::render::context::current_material_is_textured

protected

store flag to tell whether current material is textured

Definition at line 765 of file context.h.

Referenced by context(), cgv::render::gl::gl_context::disable_material(), set_current_material(), set_material(), and set_textured_material().

◆ current_material_ptr

const cgv::media::illum::surface_material* cgv::render::context::current_material_ptr

protected

store pointer to current material

Definition at line 763 of file context.h.

Referenced by context(), cgv::render::gl::gl_context::disable_material(), get_current_material(), set_current_material(), set_material(), and set_textured_material().

◆ cursor_x

int cgv::render::context::cursor_x

protected

current cursor location for textual output

Definition at line 782 of file context.h.

Referenced by context(), draw_text(), get_cursor(), process_text(), and set_cursor().

◆ cursor_y

int cgv::render::context::cursor_y

protected

Definition at line 782 of file context.h.

◆ debug_render_passes

bool cgv::render::context::debug_render_passes

protected

whether to debug render passes

Definition at line 690 of file context.h.

Referenced by context(), render_pass(), and set_debug_render_passes().

◆ default_light_source

cgv::media::illum::light_source cgv::render::context::default_light_source[nr_default_light_sources]

protected

default light sources

Definition at line 757 of file context.h.

Referenced by context(), get_default_light_source(), render_pass(), and set_default_light_source().

◆ default_light_source_handles

void* cgv::render::context::default_light_source_handles[nr_default_light_sources]

protected

handles of default light sources

Definition at line 759 of file context.h.

Referenced by context(), and render_pass().

◆ default_material

cgv::media::illum::surface_material cgv::render::context::default_material

protected

store a default material

Definition at line 761 of file context.h.

◆ default_render_flags

RenderPassFlags cgv::render::context::default_render_flags

protected

default render flags with which the main render pass is initialized

Definition at line 776 of file context.h.

Referenced by context(), get_default_render_pass_flags(), and set_default_render_pass_flags().

◆ depth_test_state_stack

std::stack<DepthTestState> cgv::render::context::depth_test_state_stack

protected

stack of depth test states

Definition at line 710 of file context.h.

Referenced by context(), disable_depth_test(), enable_depth_test(), get_depth_test_state(), pop_depth_test_state(), push_depth_test_state(), set_depth_func(), and set_depth_test_state().

◆ do_screen_shot

bool cgv::render::context::do_screen_shot

protected

Definition at line 798 of file context.h.

◆ draw_in_compatibility_mode

bool cgv::render::context::draw_in_compatibility_mode

protected

whether to do all drawing in compatibility mode, only possible if support_compatibility_mode is true, , defaults to false

Definition at line 688 of file context.h.

Referenced by context(), cgv::render::gl::gl_context::draw_edges_of_faces(), cgv::render::gl::gl_context::draw_edges_of_strip_or_fan(), cgv::render::gl::gl_context::draw_faces(), and cgv::render::gl::gl_context::draw_strip_or_fan().

◆ enable_vsync

bool cgv::render::context::enable_vsync

protected

whether vsync should be enabled

Definition at line 692 of file context.h.

Referenced by context().

◆ enabled_light_source_handles

std::vector<void*> cgv::render::context::enabled_light_source_handles

protected

keep track of enabled light source handles

Definition at line 747 of file context.h.

Referenced by add_light_source(), disable_light_source(), enable_light_source(), get_enabled_light_source_handle(), get_nr_enabled_light_sources(), and remove_light_source().

◆ frame_buffer_stack

std::stack<frame_buffer_base*> cgv::render::context::frame_buffer_stack

protected

stack of currently enabled frame buffers

Definition at line 723 of file context.h.

Referenced by cgv::render::gl::gl_context::announce_external_frame_buffer_change(), context(), cgv::render::gl::gl_context::frame_buffer_disable(), cgv::render::gl::gl_context::gl_context(), and cgv::render::gl::gl_context::recover_from_external_frame_buffer_change().

◆ gamma3

vec3 cgv::render::context::gamma3

protected

per color channel gamma value passed to shader programs that have gamma uniform

Definition at line 698 of file context.h.

Referenced by context(), and set_gamma3().

◆ gpu_vendor

GPUVendorID cgv::render::context::gpu_vendor

protected

Definition at line 624 of file context.h.

◆ light_source_handle

size_t cgv::render::context::light_source_handle

protected

counter to construct light source handles

Definition at line 749 of file context.h.

Referenced by add_light_source(), context(), and set_current_lights().

◆ light_sources

std::map<void*, std::pair<cgv::media::illum::light_source, light_source_status> > cgv::render::context::light_sources

protected

map handle to light source and light source status information

Definition at line 751 of file context.h.

Referenced by add_light_source(), disable_light_source(), enable_light_source(), get_light_source(), get_light_source_status(), get_nr_light_sources(), is_light_source_enabled(), place_light_source(), remove_light_source(), set_current_lights(), and set_light_source().

◆ modelview_matrix_stack

std::stack<dmat4> cgv::render::context::modelview_matrix_stack

protected

keep two matrix stacks for model view and projection matrices

Definition at line 719 of file context.h.

Referenced by context(), cgv::render::gl::gl_context::get_modelview_matrix(), pop_modelview_matrix(), push_modelview_matrix(), set_current_view(), and set_modelview_matrix().

◆ nr_default_light_sources

const unsigned cgv::render::context::nr_default_light_sources = 2

staticprotected

number of default light sources

Definition at line 755 of file context.h.

Referenced by render_pass().

◆ nr_identations

int cgv::render::context::nr_identations

protected

current number of indentations

Definition at line 794 of file context.h.

Referenced by context(), process_text(), and set_cursor().

◆ out_stream

cgv::signal::callback_stream cgv::render::context::out_stream

protected

use a callback stream to write text to the opengl context

Definition at line 784 of file context.h.

Referenced by output_stream().

◆ phong_shading

bool cgv::render::context::phong_shading

protected

whether to use phong shading

Definition at line 778 of file context.h.

Referenced by context(), and enable_phong_shading().

◆ projection_matrix_stack

std::stack<dmat4> cgv::render::context::projection_matrix_stack

protected

Definition at line 719 of file context.h.

◆ render_pass_stack

std::stack<render_info> cgv::render::context::render_pass_stack

protected

store the current render pass

Definition at line 774 of file context.h.

Referenced by get_render_pass(), get_render_pass_flags(), get_render_pass_recursion_depth(), get_render_pass_user_data(), and render_pass().

◆ shader_program_stack

std::stack<shader_program_base*> cgv::render::context::shader_program_stack

protected

stack of currently enabled shader programs

Definition at line 725 of file context.h.

Referenced by get_current_program(), on_lights_changed(), set_color(), cgv::render::gl::gl_context::set_color(), set_gamma3(), set_material(), set_modelview_matrix(), set_projection_matrix(), and set_textured_material().

◆ sRGB_framebuffer

bool cgv::render::context::sRGB_framebuffer

protected

whether to use opengl option to support sRGB framebuffer

Definition at line 696 of file context.h.

Referenced by context(), and enable_sRGB_framebuffer().

◆ support_compatibility_mode

bool cgv::render::context::support_compatibility_mode

protected

whether to support view and lighting management of compatibility mode, defaults to true

Definition at line 686 of file context.h.

Referenced by context(), cgv::render::gl::gl_context::get_modelview_matrix(), cgv::render::gl::gl_context::get_projection_matrix(), cgv::render::gl::gl_context::on_lights_changed(), cgv::render::gl::gl_context::push_pixel_coords(), cgv::render::gl::gl_context::set_color(), cgv::render::gl::gl_context::set_material(), cgv::render::gl::gl_context::set_modelview_matrix(), and cgv::render::gl::gl_context::set_projection_matrix().

◆ tab_size

int cgv::render::context::tab_size

protected

size a tabs

Definition at line 790 of file context.h.

Referenced by context(), and process_text().

◆ use_shader_file_cache

bool cgv::render::context::use_shader_file_cache

protected

whether to use the caching facilities of shader_program and shader_code to store loaded shader file contents as strings for faster loading

Definition at line 676 of file context.h.

Referenced by context(), disable_shader_file_cache(), enable_shader_file_cache(), and is_shader_file_cache_enabled().

◆ window_transformation_stack

std::stack<std::vector<window_transformation> > cgv::render::context::window_transformation_stack

protected

keep stack of window transformations

Definition at line 721 of file context.h.

Referenced by cgv::render::gl::gl_context::announce_external_viewport_change(), context(), get_window_matrix(), get_window_transformation_array(), pop_window_transformation_array(), push_window_transformation_array(), cgv::render::gl::gl_context::recover_from_external_viewport_change(), set_depth_range(), cgv::render::gl::gl_context::set_depth_range(), set_viewport(), and cgv::render::gl::gl_context::set_viewport().

◆ x_offset

int cgv::render::context::x_offset

protected

offset in x and y direction where text starts

Definition at line 792 of file context.h.

Referenced by context(), process_text(), set_cursor(), and set_cursor().

◆ y_offset

int cgv::render::context::y_offset

protected

Definition at line 792 of file context.h.

The documentation for this class was generated from the following files:

cgv/render/context.h
cgv/render/context.cxx

Classes

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

transformations

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ context()

◆ ~context()

Member Function Documentation

◆ add_light_source()

◆ announce_external_frame_buffer_change()

◆ announce_external_viewport_change()

◆ attribute_array_binding_destruct()

◆ attribute_array_binding_disable()

◆ attribute_array_binding_enable()

◆ clear_background()

◆ configure_new_child()

◆ destruct_render_objects()

◆ disable_blending()

◆ disable_depth_test()

◆ disable_light()

◆ disable_light_source()

◆ disable_material() [1/2]

◆ disable_material() [2/2]

◆ disable_phong_shading()

◆ disable_shader_file_cache()

◆ draw_edges_of_faces()

◆ draw_edges_of_strip_or_fan()

◆ draw_faces()

◆ draw_light_source()

◆ draw_strip_or_fan()

◆ draw_text()

◆ draw_textual_info()

◆ enable_blending()

◆ enable_depth_test()

◆ enable_font_face()

◆ enable_light()

◆ enable_light_source()

◆ enable_material() [1/3]

◆ enable_material() [2/3]

◆ enable_material() [3/3]

◆ enable_phong_shading()

◆ enable_shader_file_cache()

◆ enable_sRGB_framebuffer()

◆ ensure_window_transformation_index()

◆ enumerate_program_attributes()

◆ enumerate_program_uniforms()

◆ error()

◆ finish_render_pass()

◆ frame_buffer_attach() [1/2]

◆ frame_buffer_attach() [2/2]

◆ frame_buffer_create()

◆ frame_buffer_destruct()

◆ frame_buffer_disable()

◆ frame_buffer_enable()

◆ frame_buffer_is_complete()

◆ get_bg_accum_alpha()

◆ get_bg_accum_color()

◆ get_bg_alpha()

◆ get_bg_clr_idx()

◆ get_bg_color()

◆ get_bg_depth()

◆ get_bg_stencil()

◆ get_blend_state()

◆ get_buffer_list()

◆ get_buffer_mask()

◆ get_color()

◆ get_color_mask()

◆ get_cull_state()

◆ get_current_font_face()

◆ get_current_font_size()

◆ get_current_material()

◆ get_current_program()

◆ get_cursor()

◆ get_D()