| 12345678910111213 |
- vec3 viewDirectionW = normalize(vEyePosition.xyz - vPositionW);
- #ifdef NORMAL
- vec3 normalW = normalize(vNormalW);
- #else
- vec3 normalW = normalize(cross(dFdx(vPositionW), dFdy(vPositionW))) * vEyePosition.w;
- #endif
- vec3 geometricNormalW = normalW;
- #if defined(TWOSIDEDLIGHTING) && defined(NORMAL)
- geometricNormalW = gl_FrontFacing ? geometricNormalW : -geometricNormalW;
- #endif
|
