Depth-aware upsampling experiments (Part 6: A complete approach to upsample the half-resolution render target of a SSAO implementation)

This is the final post of the series where I explain the ideas tried in order to improve the upsampling of the half-resolution SSAO render target of the VKDF sponza demo that was written by Iago Toral. In the previous posts, I performed experiments to explore different upsampling ideas and I explained the logic behind adopting or rejecting each one. At the end, I’ve managed to find a method that reduces the artifacts to an acceptable level. So, in this post I’ll try to present it completed and in detail.
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