Search Issue Tracker
Fixed in 2022.2.X
Votes
0
Found in
2020.3
2021.2.17f1
2021.3
2022.1
2022.2
Issue ID
1416880
Regression
No
Compute Shader is not using defined constants when setting data with SetConstantBuffer
How to reproduce:
1. Open project "ComputeShaderSetConstantBuffer.zip"
2. Enter Play Mode
3. Observe the Console
For Dx11 / 12 API: Run the project as is with above instructions.
For Vullkan/Metal/OpenGL API's :
#pragma enable_cbuffer needs to be added right after #pragma kernel Execute in ComputeShaderSetConstantBufferTest.compute under \Assets directory else all tests will fail
Expected result: Console shows: "Result is 3. Should be: 3"
Actual result: Console shows: "Result is 0. Should be: 3"
Note:
- Reproducible on Windows and macOS
Comments (1)
-
Ascended_Fern
Oct 23, 2022 16:40
Any chance of seeing this fix in 2021LTS ?
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- GameObjects change Hierarchy order when undoing adding Component to multiple GameObjects
- [macOS] Editor crashes after entering Play mode with overlapping GameObjects with Cloth Component and Cloth Inter-Collision enabled
- Look Dev constantly regenerates the default Volume Profile when set to "None" instead of using the default one
- Look Dev errors are spammed when opening a new HDRP project when Look Dev was added to the layout in the previous project
- URP Scene Templates are not editable when first opened from the New Scene dialog
Resolution Note (fix version 2022.2):
Fixed in: 2022.2.0a14
Not all shader apis support cbuffers by default. In these apis, anything declared in a cbuffer using the macro will actually be declared at global scope in a special named cbuffer (e.g. CGlobals, this is different per shader API). Trying to set these by buffer name fails because these platforms didn't preserve the cbuffers. You can forcibly enable cbuffers by using "#pragma enable_cbuffer" with this fix. In addition, DX11 had an issue with cbuffers of size < 16 which is now fixed. Alternatively, you can use the hlsl cbuffer syntax instead of the macros.