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By Design
Votes
0
Found in
2020.3.37f1
2021.3.7f1
2022.1.11f1
2022.2.0b3
2023.1.0a4
Issue ID
UUM-10788
Regression
No
Shadow artifacts when using the Lightmaps to generate Lighting
Reproduction steps:
# Open the attached project
# Enable the “Auto Generate” setting in the Lighting window (Window > Rendering > Lighting)
# Observe the shadows under the “Tree_CherryBlossom” GameObject in the Game View
Expected result: No artifacts are seen and the lightmap is correctly generated
Actual result: Artifacts under the tree are seen
Reproducible with: 2020.3.37f1, 2021.3.7f1, 2022.1.11f1, 2022.2.0b3, 2023.1.0a4
Reproducible on: Windows 10 (21H2)
Note: Setting the “Filtering” setting to “None” or playing around with the “Indirect Samples” and the “Environment Samples” settings in the Lighting Settings Asset can reduce the artifacts but they do not disappear
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Resolution Note:
What you are seeing here are invalid texels, which are result of hitting backfaces. Please enable Double Sided Global Illumination in the Material settings. Otherwise, cap the open faces for the tree canopies.