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Profile GPU time for draw calls via query objects #11

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httpdigest opened this issue Aug 18, 2017 · 0 comments
Closed

Profile GPU time for draw calls via query objects #11

httpdigest opened this issue Aug 18, 2017 · 0 comments
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enhancement

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Currently, we only count the CPU/host time it takes between two consecutive glfwSwapBuffers calls.
More interesting for bottleneck analysis however would be to know the actual time it takes the GPU to perform a draw call.

So, for contexts that support it, we could use OpenGL Query Objects with glQueryCounter and the GL_TIMESTAMP target to count the GPU time.
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