Unity Issue Tracker - Multiple 'Render Main Shadowmap' -> '... Draw' -> 'SRP Batch' are present when the materials only have different properties

Fixed in 13.1.1

Votes

1

Found in [Package]

2019.3.2f1

2019.4

2020.1

2020.2

Issue ID

1261542

Regression

No

Multiple 'Render Main Shadowmap' -> '... Draw' -> 'SRP Batch' are present when the materials only have different properties

Package: Scriptable Render Pipeline Universal

Jul 08, 2020

How to reproduce:
1. Open attached project "BatchTestProject.zip" with -force-gles32 argument command
2. Open scene "BatchTest"
3. Open and enable Window -> Analysis -> Frame Debugger
4. In Project window, select and observe two materials "New Material 1" and "New Material" (all the values are the same)
5. Observe Frame Debugger -> Render Main Shadowmap -> ShadowLoopNewBatcher.Draw -> SRP Batch (only single SRP Batch is present)
6. In Project window, select "New Material"
7. Change any value
8. Observe Frame Debugger -> Render Main Shadowmap -> ShadowLoopNewBatcher.Draw -> SRP Batch

Expected result: only one SRP Batch is present
Actual result: two SRP Batches are present

Reproducible with: 2019.4.3f1 (URP 7.3.1), 2020.1.0b16 (8.1.0), 2020.2.0a10 (9.0.0-preview.35)
Could not test with: 2018.4.25f1 (4.10.0-preview), 2020.2.0a11, 2020.2.0a17 (the Editor crashes upon load up due to other bug)

Multiple 'Render Main Shadowmap' -> '... Draw' -> 'SRP Batch'es are present when multiple materials with different properties are present

Resolution Note (fix version 13.1.1):

Fixed in 2022.1.0a16
Resolution Note:

Fixed in 2020.1.7f1

Comments (2)

pensionerov

Mar 21, 2022 15:10

Is it possible to backport the fix to the latest LTS release?
Alan-Liu

Aug 15, 2021 05:27

Can the fix be backported to 2019.4?

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