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Combined Adaptive Compute Ambient Occlusion (CACAO) is a highly optimized adaptive sampling ambient occlusion implementation. This directory contains the source code for CACAO as well as a sample demonstrating usage and integration of the library. The directory structure is as follows:

• ffx-cacao contains the CACAO library
• sample contains the CACAO sample

You can find the binaries for FidelityFX CACAO in the release section on GitHub.

In the provided Sponza model for the FidelityFX CACAO sample, at the bottom of some curtains, there is an issue with incorrect normals in the mesh causing ambient occlusion to be incorrectly calculated as light in places where occlusion should be dark. This is a known issue with the mesh, and not an issue with FidelityFX CACAO itself.

FidelityFX CACAO is a modification of the Adaptive Screen Space Ambient Occlusion (ASSAO) algorithm that was developed by Intel. The original implementation can be found here.