I'm sure everybody knows this problem:
Using stencil buffering on a TNT2 (for example) in 16bit colors gives you way slower fps than in 32bit color mode.
From what I've read so far, I learned that in 16bpp there is no room for a stencil buffer (Nvidia), so it has to be emulated (read in some posts here).
My question now is:
is only the stencil buffer software or does the whole rendering process switch back to software emulation (no hardware acceleration)
Any Nvidia-Developers here who could enlight me?