Poly Hiding

[Running_Wolf]

Everybody says that a major thing to help with game performance is the hiding of polygons that are not currently seen on screen. How is this accomplished?

[DFrey]

How is largely dependent upon the needs of the game. Popular methods for rooms are bsp with pvs augmentation, portals, and oct-trees. Landscapes often use quadtrees, or more complex techniques like view dependent meshes and ROAM.

[Glenn Upton]

If the polys are not visible, do not send send them down the graphics pipeline. Clip them first. Read Mike Abrash, etc.