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Duplicate

Votes

0

Found in

2022.3.2f1

2023.1.0f1

2023.2.0a19

Issue ID

UUM-40461

Regression

Yes

Low framerate while in the Play Mode when using Render Texture with URP

-

Reproduction steps:
1. Open the attached project “RenderTextureFPS”
2. Open Scene “Assets/Scenes/SampleScene.unity”
3. Enter the Play Mode
4. Observe the Statistics panel

Expected result: In the Play Mode, FPS is in the hundreds
Actual result: The Play Mode is running lower than 60 FPS

Reproducible with: 2022.1.0b1, 2022.3.2f1, 2023.1.0f1, 2023.2.0a19
Not reproducible with: 2021.3.27f1, 2022.1.0a16

Reproducible on: Windows 10
Not reproducible on: macOS 13.4

Notes:
Removing the Render Texture from “Main Camera (1)” increases the FPS significantly
When using HDRP, FPS doesn’t seem to be impacted by Render Texture

  1. Resolution Note:

    We have validated the repro project with the UUM-40249 fix and confirmed the issue is no longer reproducible.
    Based on our testing result, we close this case as duplicate.

    Quote from UUM-40249 fix resolution:
    "Fixed runtime performance drops when multiple views that uses incompatible RTHandle descriptors are rendered within a frame."
    Duplicate of https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-40249

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