glSwizzleInvert
fn
void glSwizzleInvert(int[] swizzle, ref int[] inversion)Given swizzle, produce inversion such that:
swizzle[inversion[i]] == identity[i] where:
- identity = {0, 1, 2,...}
- unset fields are marked by -1
Parameters
swizzle | input swizzle |
inversion | resulting inversion |