94ff2ea6b1
* Add support for KHR_materials_specular to glTF * Add support for IOR to ubershaders * Update release notes * Remove unused variable, fix comment
179 lines
4.6 KiB
GLSL
179 lines
4.6 KiB
GLSL
// Decide if we can skip lighting when dot(n, l) <= 0.0
|
|
#if defined(SHADING_MODEL_CLOTH)
|
|
#if !defined(MATERIAL_HAS_SUBSURFACE_COLOR)
|
|
#define MATERIAL_CAN_SKIP_LIGHTING
|
|
#endif
|
|
#elif defined(SHADING_MODEL_SUBSURFACE)
|
|
// Cannot skip lighting
|
|
#else
|
|
#define MATERIAL_CAN_SKIP_LIGHTING
|
|
#endif
|
|
|
|
struct MaterialInputs {
|
|
vec4 baseColor;
|
|
#if !defined(SHADING_MODEL_UNLIT)
|
|
#if !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
float roughness;
|
|
#endif
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
float metallic;
|
|
float reflectance;
|
|
#endif
|
|
float ambientOcclusion;
|
|
#endif
|
|
vec4 emissive;
|
|
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SUBSURFACE) && !defined(SHADING_MODEL_UNLIT)
|
|
vec3 sheenColor;
|
|
float sheenRoughness;
|
|
#endif
|
|
|
|
float clearCoat;
|
|
float clearCoatRoughness;
|
|
|
|
float anisotropy;
|
|
vec3 anisotropyDirection;
|
|
|
|
#if defined(SHADING_MODEL_SUBSURFACE) || defined(HAS_REFRACTION)
|
|
float thickness;
|
|
#endif
|
|
#if defined(SHADING_MODEL_SUBSURFACE)
|
|
float subsurfacePower;
|
|
vec3 subsurfaceColor;
|
|
#endif
|
|
|
|
#if defined(SHADING_MODEL_CLOTH)
|
|
vec3 sheenColor;
|
|
#if defined(MATERIAL_HAS_SUBSURFACE_COLOR)
|
|
vec3 subsurfaceColor;
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
vec3 specularColor;
|
|
float glossiness;
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_NORMAL)
|
|
vec3 normal;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_BENT_NORMAL)
|
|
vec3 bentNormal;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_CLEAR_COAT) && defined(MATERIAL_HAS_CLEAR_COAT_NORMAL)
|
|
vec3 clearCoatNormal;
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_POST_LIGHTING_COLOR)
|
|
vec4 postLightingColor;
|
|
#endif
|
|
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SUBSURFACE) && !defined(SHADING_MODEL_UNLIT)
|
|
#if defined(HAS_REFRACTION)
|
|
#if defined(MATERIAL_HAS_ABSORPTION)
|
|
vec3 absorption;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_TRANSMISSION)
|
|
float transmission;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_IOR)
|
|
float ior;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_MICRO_THICKNESS) && (REFRACTION_TYPE == REFRACTION_TYPE_THIN)
|
|
float microThickness;
|
|
#endif
|
|
#elif !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
#if defined(MATERIAL_HAS_IOR)
|
|
float ior;
|
|
#endif
|
|
#endif
|
|
#endif
|
|
};
|
|
|
|
void initMaterial(out MaterialInputs material) {
|
|
material.baseColor = vec4(1.0);
|
|
#if !defined(SHADING_MODEL_UNLIT)
|
|
#if !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
material.roughness = 1.0;
|
|
#endif
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
material.metallic = 0.0;
|
|
material.reflectance = 0.5;
|
|
#endif
|
|
material.ambientOcclusion = 1.0;
|
|
#endif
|
|
material.emissive = vec4(vec3(0.0), 1.0);
|
|
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SUBSURFACE) && !defined(SHADING_MODEL_UNLIT)
|
|
#if defined(MATERIAL_HAS_SHEEN_COLOR)
|
|
material.sheenColor = vec3(0.0);
|
|
material.sheenRoughness = 0.0;
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_CLEAR_COAT)
|
|
material.clearCoat = 1.0;
|
|
material.clearCoatRoughness = 0.0;
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_ANISOTROPY)
|
|
material.anisotropy = 0.0;
|
|
material.anisotropyDirection = vec3(1.0, 0.0, 0.0);
|
|
#endif
|
|
|
|
#if defined(SHADING_MODEL_SUBSURFACE) || defined(HAS_REFRACTION)
|
|
material.thickness = 0.5;
|
|
#endif
|
|
#if defined(SHADING_MODEL_SUBSURFACE)
|
|
material.subsurfacePower = 12.234;
|
|
material.subsurfaceColor = vec3(1.0);
|
|
#endif
|
|
|
|
#if defined(SHADING_MODEL_CLOTH)
|
|
material.sheenColor = sqrt(material.baseColor.rgb);
|
|
#if defined(MATERIAL_HAS_SUBSURFACE_COLOR)
|
|
material.subsurfaceColor = vec3(0.0);
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
material.glossiness = 0.0;
|
|
material.specularColor = vec3(0.0);
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_NORMAL)
|
|
material.normal = vec3(0.0, 0.0, 1.0);
|
|
#endif
|
|
#if defined(MATERIAL_HAS_BENT_NORMAL)
|
|
material.bentNormal = vec3(0.0, 0.0, 1.0);
|
|
#endif
|
|
#if defined(MATERIAL_HAS_CLEAR_COAT) && defined(MATERIAL_HAS_CLEAR_COAT_NORMAL)
|
|
material.clearCoatNormal = vec3(0.0, 0.0, 1.0);
|
|
#endif
|
|
|
|
#if defined(MATERIAL_HAS_POST_LIGHTING_COLOR)
|
|
material.postLightingColor = vec4(0.0);
|
|
#endif
|
|
|
|
#if !defined(SHADING_MODEL_CLOTH) && !defined(SHADING_MODEL_SUBSURFACE) && !defined(SHADING_MODEL_UNLIT)
|
|
#if defined(HAS_REFRACTION)
|
|
#if defined(MATERIAL_HAS_ABSORPTION)
|
|
material.absorption = vec3(0.0);
|
|
#endif
|
|
#if defined(MATERIAL_HAS_TRANSMISSION)
|
|
material.transmission = 1.0;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_IOR)
|
|
material.ior = 1.5;
|
|
#endif
|
|
#if defined(MATERIAL_HAS_MICRO_THICKNESS) && (REFRACTION_TYPE == REFRACTION_TYPE_THIN)
|
|
material.microThickness = 0.0;
|
|
#endif
|
|
#elif !defined(SHADING_MODEL_SPECULAR_GLOSSINESS)
|
|
#if defined(MATERIAL_HAS_IOR)
|
|
material.ior = 1.5;
|
|
#endif
|
|
#endif
|
|
#endif
|
|
}
|