Fog doesn't affect background or sky reflections

[Kaleb-Reid]

Tested versions

• Reproducible in 4.4.1 stable, 4.5 beta 1

System information

Void #1 SMP PREEMPT_DYNAMIC Sat Jun 21 02:19:00 UTC 2025 on X11 - X11 display driver, Multi-window, 1 monitor - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 970 (nvidia; 570.169) - Intel(R) Core(TM) i5-7600K CPU @ 3.80GHz (4 threads) - 15.50 GiB memory

Issue description

I'm not sure if this is intended but I think this is undesirable behaviour. If you use the background or sky for reflections in the WorldEnvironment, fog is not factored in. If fog mostly obscures the sky then it makes background / sky reflections wildly inaccurate and pointless.

Steps to reproduce

• Open mrp.
• Enable / disable fog.
• Notice that reflections don't change.

Minimal reproduction project (MRP)

mrp.zip