Still a bit new to HDRP and doing some interesting things.
However, I am having a problem. I essentially want to remove all lights from a scene (Have it be dark) and re-introduce lights, but there’s a strange thing that occurs which is, if I add anything dark to a scene.
Even an unlit black box it overblows the image as seen here.
(I add a black box. And then I make the camera background black)
I’ve been testing with render setting and the like, but cannot really understand why this occurs and how to just have a dark, unlit scene. (Essentially, the sky is giving me too much light, is the problem)
(Here you can see I turn off the sky, get the result I want before it overblows the image again)
Are you using auto exposure? I’ve had trouble wrangling auto exposure to produce reasonable results in dark scenes. Even a tiny amount of light causes the exposure to go way negative (makes everything brighter) until the bloom explodes across the screen. Try a fixed exposure volume override.
Edit: Note also that the default exposure settings are … questionable. Default exposure ranges from -10 to 10 and default fixed exposure is 0. See the wikipedia page on exposure if you want to use light ranges that are physically plausible. 12 is probably a good starting point.