We use the HDRP pipeline to render Google Maps 3D Photorealistic Tiles via the Cesium library, and we have discovered that sometimes parts of the scene turn white-ish at certain angles if Sky Reflection in the Camera Frame Settings is turned on.
The white parts have a bit of flickering noise inside, but apart from that they stay as they are unless the camera angle is moved enough - then other parts turn white-ish. Which parts turn white-ish seems to be dependant on the angle. If move the camera between two angles, I could reliably switch between two specific parts turning white-ish.
I haven’t found a good way to reproduce it yet. In my experience it doesn’t happen at all for a while, and during that time I can rotate the camera all I want, everything looks okay. And then when it suddenly starts happening, most camera angles produce a white-ish areas of various sizes and positions.
Here are a few screenshots demonstrating wandering spots at various angles with Sky Reflection turned on, and that the problem vanishes when Sky Reflection is turned off.
What could this be, and what would be the proper way to fix it? Is it a bug or some kind of misconfiguration? What more could I do to diagnose it?
For now we have turned Sky Reflection off, but it would be nice to properly fix this.