does A6 render front to back or back to front? i understand that front to back is faster. also helpful is a pvs/bsp approach. I read that A6 uses BSP. Does your tool calcluate a PVS on levels? is this something you can do during game development?

I assume it uses back to front rendering because I think A5 didn't get a z-buffer until one of the later patches.

Since it uses DX8 i assume its front to back...

There are many sites on the internet where you can read how bsp/pvs works and what a z-buffer is.

All bsp based engines, including acknex, render nontransparent objects front to back and transparent objects back to front.