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Votes
0
Found in
2022.3.64f1
6000.0.52f1
6000.1.10f1
6000.2.0b8
6000.3.0a1
Issue ID
UUM-110536
Regression
No
ShaderGraph custom transparent Shader becomes opaque when HDR is enabled
How to reproduce:
1. Open the attached “IN-102107” project
2. Open the “DepthShadowDemo” Scene
3. Open the Inspector for the URP Asset (Assets > Settings > “URP-Performant” > Inspector)
4. Enable and disable HDR
5. Observe the result in the Scene view or Game view
Expected result: The “ShadowPlane” GameObject remains transparent when HDR is enabled
Actual result: The “ShadowPlane” GameObject becomes opaque when HDR is disabled
Reproducible with: 2022.2.0a9, 2022.3.64f1, 6000.0.52f1, 6000.1.10f1, 6000.2.0b8, 6000.3.0a1
Couldn’t test with: 2022.1.0a1, 2022.2.0a8 (Could not fix material issues from downgrading)
Reproduced on: Windows 11
Not reproduced on: No other environment tested
Note: The issue does not occur when using Unlit Draw Mode
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Resolution Note:
Shader Graph and graphics rendering in general can't be entirely certain when an alpha value will exceed a 0-1 range. This can be desirable behavior in some circumstances, so we don't want to make assumptions about these values, how they are used, or modify them without the user having control. If we aggressively sanitized all values, it would also reduce performance-- so we it's up to the user to make decisions about their particular use-case.