Hi everyone!

So, I'm trying to create a Depth CubeMap, but get an error when trying to Create the DepthStencilView with a FirstArraySlice >= 1. When set to only FirstArraySlice = 0 everything works as expected (all depths get rendered to just one face of the cubemap... but any value bigger than that returns an E_INVALIDARG error.

Here's the code snipet with the settings I'm using:

  D3D11_TEXTURE2D_DESC textDesc;
  ZeroMemory(&textDesc, sizeof(D3D11_TEXTURE2D_DESC));
  textDesc.Width = 1024;
  textDesc.Height = 1024;
  textDesc.MipLevels = 1;
  textDesc.ArraySize = 6;
  textDesc.Format = DXGI_FORMAT_R32_TYPELESS;
  textDesc.SampleDesc.Count = 1;
  textDesc.Usage = D3D11_USAGE_DEFAULT;
  textDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_DEPTH_STENCIL;
  textDesc.MiscFlags = D3D11_RESOURCE_MISC_TEXTURECUBE;

  m_pd3dDevice->CreateTexture2D(&textDesc, NULL, &m_pTexture);
  // Everything OK so far...



  D3D11_DEPTH_STENCIL_VIEW_DESC dsvDesc;
  dsvDesc.Format = DXGI_FORMAT_D32_FLOAT;
  dsvDesc.Flags = 0;
  dsvDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2DARRAY;
  dsvDesc.Texture2DArray.ArraySize = textDesc.ArraySize;
  dsvDesc.Texture2DArray.MipSlice = 0;

  for( UINT i = 0; i < textDesc.ArraySize; i++ ){
    dsvDesc.Texture2DArray.FirstArraySlice = i;
    m_pd3dDevice->CreateDepthStencilView(m_pTexture, &dsvDesc, &m_pDepthStencilView[i]);
  }
  // OK FirstArraySlice = 0
  // ERROR FirstArraySlice >= 1

Am I missing something in here?

Thanks!

You can't have a DepthStencilView with an ArraySize of 6 starting at any slice other than 0 since you only have 6 slices in your array to begin with. I assume you meant to set ArraySize to 1 in dsvDesc.

Indeed, you can have either one DSV:

dsvDesc.Texture2DArray.ArraySize = 6; dsvDesc.Texture2DArray.FirstArraySlice = 0;

or six DSVs:

dsvDesc.Texture2DArray.ArraySize = 1; dsvDesc.Texture2DArray.FirstArraySlice = { 0 .. 5 };

In the former case, you'll need to have a geometry shader (!) with SV_RenderTargetArrayIndex on its output. That will select one of the 6 sub-textures to render to. Note that also your render targets (if any) will need to have 6 slices, in this case. I don't think you want that.

In the later case, which is probably what you want, you just have 6 views, each of which looks like a normal 2D texture with 1 slice. Normal rendering, face by face.

Aaah!... right!.. that was it!..

D'oh!.. sounds pretty obvious in restrospective.

Didn't know about the SV_RenderTArgetArrayIndex in the geometry shader, though.

Anyways!.. thank you both Adam Miles & pcmaster.