"#endif\n"
"#endif\n"
"\n"
- "// Converts roughness value from range [0, 1] to real value for calculations\n"
+ "#if defined(THE_IS_PBR)\n"
+ "//! Converts roughness value from range [0, 1] to real value for calculations\n"
"float occRoughness (in float theNormalizedRoughness);\n"
"\n"
- "// Front material properties accessors\n"
- "#if !defined(THE_IS_PBR)\n"
- "vec4 occFrontMaterial_Emission(void); //!< Emission color\n"
- "vec4 occFrontMaterial_Ambient(void); //!< Ambient reflection\n"
- "vec4 occFrontMaterial_Diffuse(void); //!< Diffuse reflection\n"
- "vec4 occFrontMaterial_Specular(void); //!< Specular reflection\n"
- "float occFrontMaterial_Shininess(void); //!< Specular exponent\n"
- "float occFrontMaterial_Transparency(void); //!< Transparency coefficient\n"
+ "// Front/back material properties accessors\n"
+ "vec4 occPBRMaterial_Color(in bool theIsFront); //!< Base color of PBR material\n"
+ "float occPBRMaterial_Metallic(in bool theIsFront); //!< Metallic coefficient\n"
+ "float occPBRMaterial_NormalizedRoughness(in bool theIsFront); //!< Normalized roughness coefficient\n"
+ "vec3 occPBRMaterial_Emission(in bool theIsFront); //!< Light intensity emitted by material\n"
+ "float occPBRMaterial_IOR(in bool theIsFront); //!< Index of refraction\n"
"#else\n"
- "vec4 occPBRFrontMaterial_Color(void); //!< Base color of PBR material\n"
- "float occPBRFrontMaterial_Metallic(void); //!< Metallic coefficient\n"
- "float occPBRFrontMaterial_Roughness(void); //!< Roughness coefficient\n"
- "float occPBRFrontMaterial_NormalizedRoughness(void); //!< Normalized roughness coefficient\n"
- "vec3 occPBRFrontMaterial_Emission(void); //!< Light intensity emitted by material\n"
- "float occPBRFrontMaterial_IOR(void); //!< Index of refraction\n"
- "#endif\n"
+ "// Front material properties accessors\n"
+ "vec4 occFrontMaterial_Emission(void); //!< Emission color\n"
+ "vec4 occFrontMaterial_Ambient(void); //!< Ambient reflection\n"
+ "vec4 occFrontMaterial_Diffuse(void); //!< Diffuse reflection\n"
+ "vec4 occFrontMaterial_Specular(void); //!< Specular reflection\n"
+ "float occFrontMaterial_Shininess(void); //!< Specular exponent\n"
+ "float occFrontMaterial_Transparency(void); //!< Transparency coefficient\n"
"\n"
"// Back material properties accessors\n"
- "#if !defined(THE_IS_PBR)\n"
"vec4 occBackMaterial_Emission(void); //!< Emission color\n"
"vec4 occBackMaterial_Ambient(void); //!< Ambient reflection\n"
"vec4 occBackMaterial_Diffuse(void); //!< Diffuse reflection\n"
"vec4 occBackMaterial_Specular(void); //!< Specular reflection\n"
"float occBackMaterial_Shininess(void); //!< Specular exponent\n"
"float occBackMaterial_Transparency(void); //!< Transparency coefficient\n"
- "#else\n"
- "vec4 occPBRBackMaterial_Color(void); //!< Base color of PBR material\n"
- "float occPBRBackMaterial_Metallic(void); //!< Metallic coefficient\n"
- "float occPBRBackMaterial_Roughness(void); //!< Roughness coefficient\n"
- "float occPBRBackMaterial_NormalizedRoughness(void); //!< Normalized roughness coefficient\n"
- "vec3 occPBRBackMaterial_Emission(void); //!< Light intensity emitted by material\n"
- "float occPBRBackMaterial_IOR(void); //!< Index of refraction\n"
"#endif\n"
"\n"
"#ifdef THE_HAS_DEFAULT_SAMPLER\n"
- "#define occActiveSampler occSampler0 //!< alias for backward compatibility\n"
- "#define occSamplerBaseColor occSampler0 //!< alias to a base color texture\n"
- "uniform sampler2D occSampler0; //!< current active sampler;\n"
+ "#define occActiveSampler occSampler0 //!< alias for backward compatibility\n"
+ "#define occSamplerBaseColor occSampler0 //!< alias to a base color texture\n"
+ "uniform sampler2D occSampler0; //!< current active sampler;\n"
+ "#endif //! occSampler1, occSampler2,... should be defined in GLSL program body for multitexturing\n"
+ "\n"
+ "#if defined(THE_HAS_TEXTURE_COLOR)\n"
+ "#define occTextureColor(theMatColor, theTexCoord) (theMatColor * occTexture2D(occSamplerBaseColor, theTexCoord))\n"
+ "#else\n"
+ "#define occTextureColor(theMatColor, theTexCoord) theMatColor\n"
+ "#endif\n"
+ "\n"
+ "#if defined(THE_HAS_TEXTURE_OCCLUSION) && defined(FRAGMENT_SHADER)\n"
+ "uniform sampler2D occSamplerOcclusion; //!< R occlusion texture sampler\n"
+ "#define occTextureOcclusion(theColor, theTexCoord) theColor *= occTexture2D(occSamplerOcclusion, theTexCoord).r;\n"
+ "#else\n"
+ "#define occTextureOcclusion(theColor, theTexCoord)\n"
"#endif\n"
- " //! occSampler1, occSampler2,... should be defined in GLSL program body for multitexturing\n"
+ "\n"
+ "#if defined(THE_HAS_TEXTURE_EMISSIVE) && defined(FRAGMENT_SHADER)\n"
+ "uniform sampler2D occSamplerEmissive; //!< RGB emissive texture sampler\n"
+ "#define occTextureEmissive(theMatEmis, theTexCoord) (theMatEmis * occTexture2D(occSamplerEmissive, theTexCoord).rgb)\n"
+ "#else\n"
+ "#define occTextureEmissive(theMatEmis, theTexCoord) theMatEmis\n"
+ "#endif\n"
+ "\n"
+ "#if defined(THE_HAS_TEXTURE_NORMAL) && defined(FRAGMENT_SHADER)\n"
+ "uniform sampler2D occSamplerNormal; //!< XYZ normal texture sampler with W==0 indicating no texture\n"
+ "#define occTextureNormal(theTexCoord) occTexture2D(occSamplerNormal, theTexCoord)\n"
+ "#else\n"
+ "#define occTextureNormal(theTexCoord) vec4(0.0) // no normal map\n"
+ "#endif\n"
+ "\n"
+ "#if defined(THE_HAS_TEXTURE_METALROUGHNESS) && defined(FRAGMENT_SHADER)\n"
+ "uniform sampler2D occSamplerMetallicRoughness; //!< BG metallic-roughness texture sampler\n"
+ "#define occTextureRoughness(theRoug, theTexCoord) (theRoug * occTexture2D(occSamplerMetallicRoughness, theTexCoord).g)\n"
+ "#define occTextureMetallic(theMet, theTexCoord) (theMet * occTexture2D(occSamplerMetallicRoughness, theTexCoord).b)\n"
+ "#else\n"
+ "#define occTextureRoughness(theRoug, theTexCoord) theRoug\n"
+ "#define occTextureMetallic(theMet, theTexCoord) theMet\n"
+ "#endif\n"
+ "\n"
"uniform vec4 occColor; //!< color value (in case of disabled lighting)\n"
"uniform THE_PREC_ENUM int occDistinguishingMode; //!< Are front and back faces distinguished?\n"
"uniform THE_PREC_ENUM int occTextureEnable; //!< Is texture enabled?\n"
projects / occt.git / blobdiff