private void gatherLights(ref CubeBuffer cube)
{
ps.lights = new Color[cube.pixels.Length];
CubeBuffer.pixelCopy(ref ps.lights, 0, cube.pixels, 0, cube.pixels.Length);
ps.lightCount = (ulong)ps.lights.LongLength;
ulong faceSize = (ulong)cube.faceSize;
ps.lightDirs = new DirLookup[ps.lightCount];
Vector3 vec = new Vector3();
for (ulong face = 0; face < 6; ++face)
{
for (ulong y = 0; y < faceSize; ++y)
{
for (ulong x = 0; x < faceSize; ++x)
{
ulong i = face * faceSize * faceSize + y * faceSize + x;
Util.invCubeLookup(ref vec, ref ps.lightDirs[i].weight, face, x, y, faceSize);
ps.lights[i] *= ps.lightDirs[i].weight;
ps.lightDirs[i].weight = 1f;
ps.lightDirs[i].x = vec.x;
ps.lightDirs[i].y = vec.y;
ps.lightDirs[i].z = vec.z;
}
}
}
}
