flak_m/shaders/glsl/MeshEnviroMap.fp

7 lines
254 B
GLSL

// imitation of the Unreal Engine 1.x bMeshEnviroMap effect, not 1:1 but gets close
vec4 ProcessTexel()
{
vec3 eyedir = normalize(uCameraPos.xyz-pixelpos.xyz);
vec3 norm = reflect(eyedir,normalize(vWorldNormal.xyz));
return getTexel(norm.xz*.5+.5);
}