I’ve placed a point light over a mirror,
and I get quite a huge banding effect (please look at it fullscreen)
I’m I missing something on the material?
Or maybe it’s my monitor ?
Not your monitor only, I can see it too! this seems to be a recurrent problem with lighting in general, saw discussion on it on the context of Blender too: Color banding… How do I make it go away? - Game Engine / Game Engine Support and Discussion - Blender Artists Community. One recommended trick seems to be adding some kind of “irregularity” on the scene, like with the grain post-process: banding issue | Babylon.js Playground (babylonjs.com)
@sebavan is going to be working on a plugin to add dithering to PBR materials soon, which will also help counteract this
I will definitely do that cause I agree it is annoying, and as soon as the light is pretty low the default back buffer of 8 bits is not enough to handle smooth shading,
ETA is a couple weeks from now
So here is a first quick pass at the plugin you can interpolate from https://playground.babylonjs.com/#IQPBS4#46
doc is coming this week, I already started it. I’m so looking forward to the next release. I’m going to use this immediately