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Fixed in 2018.2.X

Fixed in 2018.1.X



Found in



Issue ID




[PLM] Double Sided GI is not rendered when occluder uses transparency texture

Progressive Lightmapper


How to reproduce:
1. Open Unity
2. Load user-submitted project (
3. Open scene 'test.unity'
4. Bake lighting (notice shadows)
5. Clear lightmap data
6. Change 'Plane (1)' game object material shader to 'Transparent_LM'
7. Bake lighting again (notice result without shadows)
8. Check 'Scene view' in 'Texel Validity' mode (notice invalid texels)

Expected result: Shadows are rendered during both bake processes
Actual result: Lightmapper produces invalid texels and doesn't render shadows in the second bake process

* In version 2017.3.0a2 Double Sided GI works exactly as intended

Reproducible with - 2017.1.3f1, 2017.2.1p1, 2017.3.0a3, 2017.3.0p1
Not reproducible with - 2017.1.2p2, 2017.2.0p1, 2017.3.0a2
Could not test: 5.6.5f1, 2017.1.0a6 (Double Sided GI was not compatible with Progressive Lightmapper yet)

Verified: 2018.2.0a4

Comments (1)

  1. AcidArrow

    Mar 01, 2018 07:29

    It doesn't appear to be fixed in latest beta (9). Is the fix going to land in a later beta/RC?

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