textured_material.h

#pragma once
 
#include <cgv/media/illum/textured_surface_material.h>
#include "texture.h"
 
#include "lib_begin.h"
 
namespace cgv {
    namespace render {
 
class CGV_API textured_material : public media::illum::textured_surface_material
{
public:
    enum AlphaTestFunc { AT_ALWAYS, AT_LESS, AT_EQUAL, AT_GREATER };
protected:
    std::vector<texture*> textures;
    // store context pointer to destruct textures
    context* ctx_ptr;
 
    float alpha_threshold;
    AlphaTestFunc alpha_test_func;
public:
    textured_material();
    virtual ~textured_material();
    textured_material(const media::illum::textured_surface_material& mtl);
    void set_alpha_test(AlphaTestFunc _alpha_test_func = AT_GREATER, float _alpha_threshold = 0.0f);
    AlphaTestFunc get_alpha_test_func() const;
    float get_alpha_threshold() const;
    AlphaTestFunc& ref_alpha_test_func();
    float& ref_alpha_threshold();
    bool ensure_textures(context& ctx);
 
    int add_texture_reference(cgv::render::texture& tex);
    size_t get_nr_textures() const { return textures.size(); }
 
    texture* get_texture(int texture_index) const;
    void enable_textures(context& ctx);
    void disable_textures(context& ctx);
    void destruct_textures(context& ctx);
};
 
    }
}
 
#include <cgv/config/lib_end.h>