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Won't Fix
Votes
0
Found in
2019.3
2019.3.0f6
2020.1
2020.2
Issue ID
1215617
Regression
No
[iOS]Shadow has artifacts when using Lightmap texture compression ATSC and encoding RGBM Lightmap Encoding set to Normal Quality
How to reproduce:
1. Open the attached project New Unity Project.zip
2. Go to the Lightning window-> Press Generate Lighting
3. In the Project window-> Scenes-> SampleScene select Lightmap-0_comp_light texture
4. Go to the Inspector window-> enable Override For iOS-> set Frotmat to RGB(A) Compressed ASTC 5x5 block and press Apply
5. Go to the Project settings-> Other Settings-> set Lightmap Encoding to Normal Quality
Actual: Created shadows has artifacts only when the quality is set to Normal in Lightmap Encoding (see the Untitled.mov attached)
Expected: Created shadows are smooth with all quality settings
Reproducible with: 2019.3.8f1, 2020.1.0b4, 2020.2.0a5
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Resolution Note (2020.1.X):
RGBM/ASTC combination should be avoided. Instead, we suggest one of the following:
- Use High Quality lightmap encoding setting
- Use the ETC2 texture format
Unity currently chooses ETC2 for iOS when using RGBM encoding so the default behavior should still yield good results in this case.