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Fixed
Fixed in 6000.0.0b15
Votes
0
Found in
2023.2.6f1
2023.3.0b3
6000.0.0b11
7000.0.0a1
Issue ID
UUM-60917
Regression
No
[HDRP][Performance] Expensive Culling for Non-Rendered Shadow Cascades
Reproduction steps:
1. Open the attached project “ReproProject”
2. Open the “Assets/OutdoorsScene.unity “scene
3. Enter Play Mode
4. Open the Profiler Window, In CPU Usage, Observe the time spent on "BRG Cull Split 0", "BRG Cull Split 1", "BRG Cull Split 2", and "BRG Cull Split 3" corresponding to the four total directional shadow cascades
5. Open the Frame Debugger and go to the Render Shadow Maps section
6. Observe the number of shadow cascades being rendered
Expected result: Only one BGR Cull Split is executed in the CPU because only one shadow cascade was updated
Actual result: Four BGR Cull Splits are executed
Reproducible with: 2023.1.0a23, 2023.2.6f1, 2023.3.0b3
Not reproducible with: 2021.3.34f1, 2022.3.17f1, 2023.1.0a22
Reproducible on: macOS(Intel) 14.2.1, Windows 10 Pro 22H2
Note: In the repro project the time spent for culling is around 2-3 sec, but in a bigger project this could be a potentially large performance issue.
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