I’m using Unity HDRP to experiment with filmmaking. I have set up volumetric fog and a few lights going through it, but when I move the lights, they leave gradually fading trails of where they were before. Or if I deactivate a light, it gradually fades out. This is only in the game window, during play, as far as I can tell.
They do not leave trails if I move the camera. Only if I move or rotate the lights themselves, through volumetric fog.
I’ve tried turning off all post-process volumes, and messed with some of the stuff in the HDRenderPipelineAsset settings.