Hierarchical Z-Buffer Occlusion Culling - Generating Occlusion Volumes

Almost a year ago I wrote a couple of posts on Hierarchical Z-Buffer Occlusion Culling (HZB-OC). Hierarchical Z-Buffer Occlusion Culling Hierarchical Z-Buffer Occlusion Culling – Shadows One very glaring issue I left largely untouched was the workflow issue.  Artists currently have to author all or a large percentage of the volumes…