I’ve added several custom post-processing materials, including radial blur, custom positional aberration, and custom tonemapping. However, I’ve noticed that more and more of these post-processing materials seem to be causing color accuracy issues, especially in areas with large gradients such as the sky and vignetting. The color gradation is becoming increasingly pronounced. I initially suspect this might be a post-processing accuracy problem.
Are there any solutions?
The first image below has post-processing volume completely disabled, while the second image uses custom post-processing materials.
（The red lines represent what I perceive as the tonal gradation issue.）
