worklist/hifi — pull request #176 by ZappoMan (2013-05-02 01:46:23+00:00)
Title: Render voxels optimization

This code improves the render pipeline. we now:
- track dirty bits for voxel changes
- track dirty bits for when voxels need to be changed in the VBO arrays
- only call glBufferSubData() on the portions of the VBOs that change