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Fog Light propagation breaks with Temporal Upscaling.

joshua-igor opened this issue ยท 1 comments

commented

Describe the bug

When you turn on Temporal Upscaling and have Fog Light Propagation "On" as well, the light will be extremely pixelated when looking at the sky through it.
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  • What GPU vendor you are using: NVIDIA RTX 3070
  • What operating system you are using: Windows 11
  • What minecraft version you are playing: 1.21
  • If you are using a special client for minecraft: N/A
  • What shader loading mod you are using: Iris 1.7.3
  • What version of the shader you are using: Bliss In-Dev Version Commit #475
  • If you are using any, what additional mods you are using besides the ones required to use the shader: Many mods, but I believe the only one worth mentioning would be Distant Horizons

Describe how to reproduce the bug

  • Turn on "Temporal Upscaling" and set it to a number lower than 1.
  • Turn on "Floodfill"
  • Turn on "Fog Light Propagation"
  • Set Fog Samples to a low number.
  • At night time, put a torch on a high place and look at the sky through it.

if a specific shader setting can make it start/stop bugging, please list what shader setting does that.
Turning on "Render Clouds as Fog" and increasing the Fog Samples to ~16 mitigate this bug, however it decreases a lot of performance, defeating the pourpuse of using Temporal Upscaling.

commented

alright, will check this out.
i already know temporal upscaling isnt the main cause of this, but how fog interacts with distant horizons.