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Won't Fix
Votes
1
Found in
2022.2.16f1
2023.1.0b13
Issue ID
UUM-34173
Regression
No
FPS of the Ray Traced scene significantly drops when turning Path Tracing on and off
How to reproduce:
1. Open the user-attached project “hdrp_dxr_slowdown_bugreport”
2. Open the “OutdoorsScene” scene
3. Enter the Play Mode
4. Select the “Ray Tracing Volume” GameObject in the Hierarchy
5. Turn the “Path Tracing” field on and then off in the Inspector
6. Observe the framerate in the Profiler
Expected result: After turning the “Path Tracing” off, the FPS is the same as it was before turning it on
Actual result: After turning the “Path Tracing” off, the FPS gets much lower (for example, from 60 FPS to 30 FPS) than it was before turning it on
Reproducible with: 2022.2.16f1, 2023.1.0a26, 2023.1.0b13
Not reproducible with: 2023.2.0a13
Fixed in: 2023.2.0a1
Couldn’t test with: 2020.3.47f1, 2021.3.23f1 (Ray Tracing not working properly)
Reproducible on: Windows 11 Pro and Nvidia RTX 3050Ti
Note: Sometimes you need to turn the “Path Tracing” off and on a couple of times to get it reproduced but most of the time it is reproduced after the first time
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Resolution Note:
We have try to reproduce the issue but it is really tricky to do. We acknowledge that there is an issue sporadically but we can't investigate more as of today due to low resources on this. We are closing the issue. If the issue is critical for you and you have better repro step with latest version please re-open it. Thanks for your understanding.