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    • By Jason Smith
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    • By NikiTo
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      Will GPU stale the pixel if I issue a discard in the very beginning of the pixel shader, or GPU will already start using the freed up resources to render another pixel?!?!



       
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DX12 How to deal with DXGI_FORMAT_B8G8R8A8_UNORM_SRGB

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Hello guys,

I have a texture of format DXGI_FORMAT_B8G8R8A8_UNORM_SRGB.

Is there a way to create shader resource view for the texture so that I could read it as RGBA from the shader instead of reading it specifically as BGRA?

I would like all the textures to be read as RGBA.

 

Tx

Edited by _void_

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Yeah, I can convert the texture to DXGI_FORMAT_R8G8B8A8_UNORM_SRGB format.

I thought maybe there is a way to work this around using shader resource view, which I do not know about :-) 

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15 minutes ago, _void_ said:

I thought maybe there is a way to work this around using shader resource view, which I do not know about :-) 

You can assign multiple shader resource views with different types to a resource, but I am not sure if you can interpret BGRA as RGBA since the underlying bytes of the resource are ordered differently.

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22 minutes ago, ajmiles said:

Am I being dumb, or wouldn't DXGI_FORMAT_B8G8R8A8 come through in the correct order into the shader without messing around with swizzles?

Heh, that's a good point. It's essentially already got the swizzling baked into it so you can read it normally. Don't know why I didn't realize that...

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