Lut, Shader, Programming, Blender3d, Unreal Engine.
is the corner left of the 4th square). To do this we need a little change: Offset_from_Blue = Floor(InColor.B * (LUT_Dimension - 1)) /LUT_Dimension Here is how that looks like in node based: And that is all we have to do for the Blue channel. Now for the red. Calculation of the Red contribution: