fireball/lib/renderers/shaders/ShaderChunk/envmap_vertex.glsl

26 lines
494 B
Plaintext
Raw Normal View History

2018-12-25 13:59:22 +00:00
#ifdef USE_ENVMAP
#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )
vWorldPosition = worldPosition.xyz;
#else
vec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );
vec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );
#ifdef ENVMAP_MODE_REFLECTION
vReflect = reflect( cameraToVertex, worldNormal );
#else
vReflect = refract( cameraToVertex, worldNormal, refractionRatio );
#endif
#endif
#endif