Here's a good article explaining how to implement Ambient Occlusion: https://developer.nvidia.com/gpugems/GPUGems3/gpugems3_ch12.html. Also, GPU Gems is a good resource overall.
Here's a good article explaining how to implement Ambient Occlusion: https://developer.nvidia.com/gpugems/GPUGems3/gpugems3_ch12.html. Also, GPU Gems is a good resource overall.