                          Glide Driver Documentation 

Current version of 3dfx glide driver is a beta release, it has some bugs and
it's slow ( misses clut caching that will improve *considerably* the speed ).

There are problems also in alpha blending modes, one of the psx mode cannot
be done at all on 3dfx hardware, while others can ( and are implemented ),
also current driver doesn't support blending depending on texture alpha bit,
that'll be fixed in next release.

If the emulator seems to hang with a black screen try pressing pad buttons,
that's because 3dfx driver doesn't have all functions yet.

- 4 Bit clut conversion

 This option tells the driver to convert 4 bit palettizzed textures to 1555
 format ( 15 bit textures with no palette ), however the conversion may
 decrease the performance when there are many textures to be converted and
 more important if your 3dfx card is low on texture memory.

- 8 Bit clut conversion

 Same as for 4 bit ones.

- Bilinear Hack

 There's a "problem" in 3dfx hardware with bilinear filtering, when the
 texture must wrap ( the texture is repeated on a single polygon ) the chip
 that does filtering starts to blend wrong texels, with this option UV are
 propely corrected.

 However i've still to implement it propely, so if you still see problems
 try disabling bilinear filtering at all.

I would like to thank the following peoples for having helped me with alpha
modes and other stuff:

                     Jurjen Katsman  ( Nix / TBL )
                     Timur Davidenko ( Adept / Esteem )
                     Jukka Limatta   ( Wog / Orange )
                     Edward Kmett    ( Harmless / ? )

                     and the others i forgot, sorry :)
