gradientmapParsFragment top-level property
String
gradientmapParsFragment
getter/setter pair
Implementation
String gradientmapParsFragment = """
#ifdef USE_GRADIENTMAP
uniform sampler2D gradientMap;
#endif
vec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {
// dotNL will be from -1.0 to 1.0
float dotNL = dot( normal, lightDirection );
vec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );
#ifdef USE_GRADIENTMAP
return vec3( texture2D( gradientMap, coord ).r );
#else
return ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );
#endif
}
""";