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I would like to use the stencil information in my depthstencil buffer as shaderresourceview (DX11) in my shader. I have a DSV D24S8 from which I create a R24X8 resource fine using the red for shadowing but can't use the X8 of course So I try to create a parallel resource X24G8. DX says no error but I'm not sure this is allowed or can work as what I get is a black square when i visualize the stencil X24G8 resource on the screen using the green chanel. Or maybe I'm not reading this correctly. I just send the green value to the pixel shader or try other multiplication stuff to modifty the value but nothing changes.

Is it even possible to create a resource from stencil or a texture declaration in shader can be used to reinterpret the data from R24X8?

thanks

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  • \$\begingroup\$ How do your shaders work? \$\endgroup\$
    – Raildex
    Mar 7, 2022 at 12:46
  • \$\begingroup\$ can you be more presice on that question. I'm currently using the depth stencil red channel for shadows. As I'm doing stencil mirror I would like to use the stencil data too for some specific calculation for mirrors. \$\endgroup\$
    – philB
    Mar 7, 2022 at 13:09
  • \$\begingroup\$ if you're talking about the shader for the stencil it is at the moment only a simple shader just to see the texture content on the screen: color = txdiffuse.sample(sampoint, input.tex).g. with txdiffuse being the depth buffer content used as its shaderresourceview in format X24typeless_G8_uint. \$\endgroup\$
    – philB
    Mar 7, 2022 at 13:23
  • \$\begingroup\$ What type is txdiffuse? \$\endgroup\$
    – Raildex
    Mar 7, 2022 at 13:45
  • \$\begingroup\$ Texture2D txDiffuse : register(t0); may I set a specific format like <float2> \$\endgroup\$
    – philB
    Mar 7, 2022 at 13:56

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