Forum Discussion
Banding in dim Lighting
I have posted also on the Unity forums but thought I'd ask here too. I am getting some strong color banding in my dimly lit scene, from the lighting/shading using the default Diffuse with a texture...
If you don't use HDR, its worse than 24 bit. Unity actually uses a logarithmic color encoding in its lighting system, which trades color value precision for slightly higher than 0-1 dynamic range. Also, when you make a gradient in an authoring tool, it probably does some dithering and maybe even LCD sub-pixel compensation automatically, which will yield a higher quality than you can expect from the output of a realtime shader.