Color grading doesn't work properly

Questions
1

help Color grading doesn’t work properly, the model shows some red color blocks.
How to make color grading work without modifying contrast?
When the camera moves left or right, the red blocks will increase or decrease.

2

I tried modifying the shader code with contrast=3 to make sure contrast-1.0 is in the 0-1 range

Any other good ideas?

3

cc @sebavan

4

I ll fix it ASAP

5

this should fix it Fix Out of range values with high contrast by sebavan · Pull Request #16913 · BabylonJS/Babylon.js · GitHub