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9.0.0 - preview.14

Issue ID




Enabling SRP Batcher increases the CPU Rendering time when profiling with SRP Batcher Profiler

Package: Scriptable Render Pipeline Universal


How to reproduce:
1. Open attached project(
2. Open the SRP-Batcher-Test scene
3. Make sure that GameObject 'stageBg_fantasy_forest_01/Foliage/ProblematicBushes' has Component 'ChildrenActivatorByMesh' enabled
4. Enter Play Mode
5. In the URP settings asset toggle SRP Batcher off/on and compare the SRP profiler CPU times

Expected result: SRP batching results in faster rendering time
Actual result: SRP batching results in slower rendering time

Reproducible with: 2019.4.3f1(URP 7.4.1), 2020.1.0b16(URP 9.0.0 - preview.14), 2020.2.0a16(URP 9.0.0 - preview.14)
Could not test with: 2018.4.23f1(URP 4.10.0 - SRP Batcher not yet implemented), 2020.2.0a17, 2020.2.0a18(URP 9.0.0 - preview.35 - crash when loading the project)

  1. Resolution Note:

    SRP Batcher could be slower in very dedicated scene where: all similar meshes, similar materials, and no any material override ( like color ). In this case, builtin "GPU instanced" material is still faster than SRP Batcher. Please read notes for workaround

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