Vertex Program Issues

Vertex positions may be transformed in unusual ways. How do we compute and transform bounding boxes for tilesort?
Compute bounding boxes from glVertex and glVertexAttribARB(0, x, y, z) commands.
New Tilesort SPU bounding box scale factor option to help with warped geometry.
crserver option lets one specify which generic program parameters contain the actual projection matrix (if you have that information.

Vertex positions may be transformed in unusual ways. How do we compute and transform bounding boxes for tilesort?