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Fixed

Fixed in 6000.0.58f1, 6000.2.1f1, 6000.3.0a5

Votes

1

Found in

6000.0.54f1

6000.1.13f1

6000.2.0b11

6000.3.0a3

Issue ID

UUM-112727

Regression

No

Errors “There are more UAVs (9) than the maximum supported (8) in Ray Tracing Shader "RayTracingUAVBug".“ and “RayTracingUAVBug.raytrace: Ray tracing program is invalid“ are present when using more than 8 UAVs

-

Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/Scenes/SampleScene.unity” Scene
3. Observe the Console

Expected result: No Errors exist
Actual result: Errors “There are more UAVs (9) than the maximum supported (8) in Ray Tracing Shader "RayTracingUAVBug".“ and “RayTracingUAVBug.raytrace: Ray tracing program is invalid“ are present

Reproducible with: 2022.3.62f1, 6000.0.54f1, 6000.1.13f1, 6000.2.0b11, 6000.3.0a3

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Note:
- Similar issue mentioned in Discussions: [https://discussions.unity.com/t/computeshader-with-more-than-8-buffers/819100/8]
- Reproducible only when using DX12

  1. Resolution Note (fix version 6000.3.0a5):

    Raised the maximum amount of UAVs supported in RayTracingShaders to 64. Fix verified using 33 UAVs.
    Fix verified in 6000.3.0a5_2bad36b0e352

  2. Resolution Note (fix version 6000.2.1f1):

    Fix verified in 6000.2.1f1.3141

  3. Resolution Note (fix version 6000.0.58f1):

    Fix verified in Unity 6000.0.58f1.12149.

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