Lut, Shader, Programming, Blender3d, Unreal Engine.
the slice where blue is 0. We asign this as final color. This is not good, because every blue value between 0 and 0.25 will read the same blue from the LUT. What we want to do is to read the Blue at 0, then the Blue at 0.25 and then Lerp between the two by 50 percent. This is of course for the case