Lut, Shader, Programming, Blender3d, Unreal Engine.
typically has pure black at the top left. At the top left, although the V value is 1, the Green channel of RGB is 0. You either need to flip the LUT image vertically, or do the following calculation. v_of_uv = 1. - INcolor.G; Second point has to do with the way sampling works. Lets import the