getCosineDirection
getCosineDirection(out, out_offset, normal, normal_offset, random)
Kind: global function
See: https://www.shadertoy.com/view/stVfWc
| Param | Type |
|---|---|
| out | Array.<number> |
| out_offset | number |
| normal | Array.<number> |
| normal_offset | number |
| random | function |