How to pass a texture input to a compute shader?

[theodox]

Thanks for setting this up. The vanilla examples work for me and I've been able to tweak the USFs and that works as well. However I can't see how to pass a texture input to the compute shader. I added a Texture2D input to the usf and added this to the parameter macros:

    SHADER_PARAMETER_TEXTURE(Texture2D, TestTexture)

In the RunComputeShader_RenderThread example, I pass that along:

     PassParameters.TestTexture = DrawParameters.TestTexture->Resource->TextureRHI->GetTexture2D();

However I always hit a check exception:

 Assertion failed: Bindings.StructureLayoutHash == ParametersMetadata->GetLayoutHash() 

Any suggestions on where I should look? The UE documentation is of course entirely nonexistent :(

[Chomusuky]

I have the same error. Did you find a solution ? It looks like Epic hates developpers :'(

[sasmaster]

Anybody solved this one?

[frenchtouchXR]

Hello, I did the same by using Shadeup example : SHADER_PARAMETER_TEXTURE(Texture2D, InputTexture)

Now I'm pretty sure I have a problem here :

FRDGTextureDesc InputDesc(FRDGTextureDesc::Create2D(Params.InputTexture->GetSizeXY(), PF_B8G8R8A8, FClearValueBinding::White, TexCreate_RenderTargetable | TexCreate_ShaderResource | TexCreate_UAV));
FRDGTextureRef TmpInputTexture = GraphBuilder.CreateTexture(InputDesc, TEXT("MulticamUnpacker_TempInputTexture"));
FRDGTextureRef TargetInputTexture = RegisterExternalTexture(GraphBuilder, Params.InputTexture->GetRenderTargetTexture(), TEXT("MulticamUnpacker_inputRT"));
PassParameters->InputTexture = TargetInputTexture->GetRHI();

It makes Unreal crash.