Search Issue Tracker
Fixed in 2021.3.36f1
Fixed in 2021.3.X, 2022.3.X, 2023.1.X, 2023.2.X, 2023.3.X
Votes
3
Found in
2021.3.31f1
2022.3.10f1
2023.1.15f1
Issue ID
UUM-52949
Regression
No
MSAA-specific visual artifacts with using Forward (+) rendering and transparent materials
Steps to reproduce:
1. Unzip the attached user's project "MSAA Bug.zip"
2. Open "SampleScene.unity" and Enter Play Mode
3. Observe white pixels surrounding a mesh with transparent material when the particle system is playing
4. Navigate to "Assets/Settings/URP-HighFidelity-Renderer.asset" and change the Rendering Path to Deferred
5. Enter Play Mode and observe no white pixel artifacts
Expected results: white pixels do not surround a mesh with transparent material when the particle system is playing when Forward or Forward+ Rendering Path is used
Actual results: white pixels surround a mesh with transparent material when the particle system is playing when Forward or Forward+ Rendering Path is used
Reproducible with: URP 12.1.12 (2021.3.31f1), URP 14.0.9 (2022.3.10f1), URP 15.0.6 (2023.1.15f1)
Could not test on 2023.3.0a8 and 2023.2.0b13 due to the particle system and materials no longer rendering
Reproducible on: Windows 11, Windows 10
Not reproducible on: No other environment tested
Notes:
-Issue reproduces in Windows Standalone Build
-Workarounds are: Disabling MSAA, using another anti-aliasing technique, changing the rendering path from Forward+ to Deferred, avoid using materials with Additive Blending Mode
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Redoing creation of Sub Scenes and Cube GameObjects in Hierarchy throws “Assertion failed on expression: 'targetScene != nullptr’” error in Console window
- Selecting “New Sub Scene” after assigning “New Scene” in Sub Scene Script Component throws “Destroying GameObjects immediately is not permitted” in the Console window
- Shader Graph "Zoom Step Size" can be set to 0 even though the zoom still works
- Enabling/Disabling the Deprecated Nodes doesn't apply to the opened Shader Graph unless any Variable is added to the Blackboard
- Group Selection title text size is smaller in renaming than the actual font size
Resolution Note (fix version 2023.3):
Cameras are now clearing colors when MSAA is enabled such that alpha to coverage doesn't reuse the color pixels from the last frame when using alpha clipping.