CODEWITHSUNDEEP
graphicsdirectxdirectx-12
rantingmong
rantingmong

Reputation: 103

Creating Shader Resource View performance

I was wondering if its considered an "okay" practice to create a shader resource view for a ID3D12Resource just before passing it into a ID3D12GraphicsCommandList and destroying it afterward when the frame completes?

Do note that I create the descriptor view for the said resource only once.

Upvotes: 1

Views: 1238

Answers (1)

galop1n
galop1n

Reputation: 8824

This is a quote from a Microsoft engineer about why CreateShaderResourceView return void and not an error code.

We intentionally don't have return codes on high frequency APIs since it would be a waste of CPU time to be checking for errors every call, which could be happening on the fly many thousands of times a frame.

They assume by design that it is an api that can be called many times a frame, the answer to your question is, yes, you can do it, it is not a problem.

You just have to be careful to protect the view lifetime in the descriptor heap for as long as the gpu may need it before overwriting it.

Upvotes: 1

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