3ed825f981
The direct lights are usually much smoother and with higher dynamic range than indirect lighting. Using the R11B11G10 float format exhibit color shifts and banding even in simple setups without a way to mitigate the issue. Using RGB9_E5 encoding improve the quality while retaining the storage benefit of 32bit formats. The added overhead of the software encoding not perceptible in a full lighting pass. This affects direct lights and SSS convolution result. Fix #121937 Pull Request: https://projects.blender.org/blender/blender/pulls/122515