fireball/lib/renderers/shaders/ShaderChunk/lights_phong_pars_fragment.glsl
2018-12-25 17:29:22 +03:30

54 lines
1.4 KiB
GLSL

varying vec3 vViewPosition;
#ifndef FLAT_SHADED
varying vec3 vNormal;
#endif
struct BlinnPhongMaterial {
vec3 diffuseColor;
vec3 specularColor;
float specularShininess;
float specularStrength;
};
void RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {
#ifdef TOON
vec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;
#else
float dotNL = saturate( dot( geometry.normal, directLight.direction ) );
vec3 irradiance = dotNL * directLight.color;
#endif
#ifndef PHYSICALLY_CORRECT_LIGHTS
irradiance *= PI; // punctual light
#endif
reflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );
reflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;
}
void RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {
reflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );
}
#define RE_Direct RE_Direct_BlinnPhong
#define RE_IndirectDiffuse RE_IndirectDiffuse_BlinnPhong
#define Material_LightProbeLOD( material ) (0)