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Fixed

Fixed in 6000.0.47f1, 6000.1.0f1, 6000.2.0a10

Votes

32

Found in

6000.0.40f1

6000.1.0b8

6000.2.0a5

Issue ID

UUM-98838

Regression

Yes

Adaptive Probe Volumes are not applied to URP Simple Lit or Lit Shaders when using "Mixed" Light Mode

-

Reproduction steps:
1. Open the attached “IN-94576.zip” project
2. Open the “SampleScene”
3. From the Hierarchy, select the “Directional Light” GameObject
4. In the Inspector, make sure the Light “Mode” is set to “Mixed”
5. Open the “Lighting” Window (Window > Rendering > Lighting)
6. Click “Generate Lighting”
7. Observe the “model_Props_Barrel__Occluded_A” and “model_Props_Barrel__Occluded_B” GameObjects

Expected result: The GameObjects are occluded and not lit
Actual result: The GameObjects are lit

Reproducible with: 6000.0.35f1, 6000.0.40f1, 6000.1.0b8, 6000.2.0a5
Not reproducible with: 6000.0.34f1
Couldn’t test with: 2022.3.59f1 (APV not available)

Reproducible on: Windows 11
Not reproducible on: no other environment tested

Note:
- Setting the Light “Mode” to “Baked” and then Generating Lighting, shows the expected result

  1. Resolution Note:

    This is expected since the project is using Subtractive Mixed Lighting Mode with shadow casting turned of for main light in the active URP Asset.

    To get the desired result set the Lighting Mode under Mixed Lighting in the Lighting window to Shadowmask. And turn on the main light shadow casting in the active URP Asset.

Comments (2)

  1. zenbin3d

    Mar 12, 2025 15:42

    Can confirm the issue is also present in the latest 6000.0.41 LTS version.

  2. zenbin3d

    Mar 08, 2025 16:23

    But this behavior has always worked ok. Subtractive lightmaps with directional mixed lighting light and APVs have always worked ok on Unity 6 until after Unity 6000.0.32 LTS version. 😢

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