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Artifacts with Emission and SSR enabled

Open JekSun97 opened this issue 5 months ago • 3 comments

Tested versions

4.5 beta3

System information

Godot v4.5.beta3 - Windows 10 (build 19045) - Multi-window, 1 monitor - Vulkan (Forward+) - dedicated Radeon RX 560 Series (Advanced Micro Devices, Inc.; 31.0.21912.14) - Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (4 threads) - 15.93 gb memory

Issue description

I see artifacts in rendering when Emission is enabled in the material and SSR is enabled in the environment:

Image

SSR or Emission is disabled:

Image

I believe that these are distorted reflections, in MRP if you turn Roughness to the maximum, the artifacts disappear, but in my project this does not solve the problem. I also tried increasing the reflections and subsurface scattering quality in the project settings, but the distortion is still present.

Steps to reproduce

Open MRP.

Minimal reproduction project (MRP)

bug.zip

JekSun97 avatar Jul 11 '25 16:07 JekSun97

I don't have SDFGI or voxel GI enabled so it's unlikely to be a duplicate - #108508

JekSun97 avatar Jul 11 '25 17:07 JekSun97

Did you try setting SSR roughness quality to disabled in Project Settings?

mrjustaguy avatar Jul 12 '25 21:07 mrjustaguy

Can "sorta" replicate on both v4.6.dev4 and v4.5.1.stable, by which I mean, I'm assuming you're referring to the reddish emission spots on the ball's shadow, which look pixelated when compared to the rest of the scene. (Also seems to be some small differences between the two versions)

I do not know whether this is expected or not, so someone from the rendering team should review.

v4.5.1.stable v4.6.dev4
Image Image

rsubtil avatar Nov 29 '25 15:11 rsubtil