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Question StructuredBuffer in DirectX 12

Discussion in 'Shaders' started by Micz84, Aug 9, 2023.

  1. Micz84

    Micz84

    Joined:
    Jul 21, 2012
    Posts:
    436
    Hi I have an issue with StructuredBuffers in Dx12
    I am porting out shaders from Dx11 to 12 and I get this error:
    Code (csharp):
    1. Unexpected identifier "StructuredBuffer". Expected one of: typedef const void inline uniform nointerpolation extern shared static volatile row_major column_major struct or a user-defined type
    Do I have to change it to something else?
     
    Micz84, Aug 9, 2023
    #1

  2. INedelcu

    INedelcu

    Unity Technologies

    Joined:
    Jul 14, 2015
    Posts:
    158
    They should work without issues.

    Declaration examples:
    StructuredBuffer<float4> SomeBuffer;
    StructuredBuffer<SomeStructure> AnotherBuffer;

    How did you declare your structured buffer?
     
    INedelcu, Aug 9, 2023
    #2

  3. Micz84

    Micz84

    Joined:
    Jul 21, 2012
    Posts:
    436
    Hi, exactly like that:
    StructuredBuffer<float> _sourceMesh;
    Today I do not see this error. Strangely, it was working correctly and an issue I had ware not related to this error.
    One more question StructuredBuffers are recommended to be declared inside #ifdef with SHADER_API_D3D11 but then they are not present in Dx12. Is there a keyword for Dx12?
     
    Micz84, Aug 10, 2023
    #3

  4. aleksandrk

    aleksandrk

    Unity Technologies

    Joined:
    Jul 3, 2017
    Posts:
    2,835
    Hi!
    There is no SHADER_API_D3D12. Both DX11 and DX12 use SHADER_API_D3D11.
     
    aleksandrk, Aug 10, 2023
    #4