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Won't Fix
Votes
0
Found in
2021.2.16f1
2021.2.17f1
2021.3
2022.2.0a8
Issue ID
1416268
Regression
Yes
Shaders takes a long time to compile when using the Volumetric Lights
How to reproduce:
1. Open the attached project "ShaderCompLong.zip"
2. Open the "Demo" Scene (Assets/VolumetricLights/Demos/Minimal/Scene)
Expected result: The Shader compilation takes a few seconds to finish
Actual result: The Shader compilation takes around 20min. to finish
Reproducible with: 2021.2.16f1, 2021.2.19f1, 2021.3.0f1, 2022.2.0a8, 2022.2.0a10
Not reproducible with: 2019.4.37f1, 2020.3.33f1, 2021.2.15f1, 2022.1.0b15, 2022.2.0a7
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Kronnect
Apr 27, 2022 05:23
This issue only happened in 2021.x and was fixed in latest version (5.0) of Volumetric Lights.
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Resolution Note (2022.2.X):
I double-checked, the time is spent inside the FXC compiler, so there's nothing we can really do about it.
Adding a "[loop]" attribute before the loop with many iterations in Raymarch.hlsl fixes the issue.