src/mesa/drivers/dri/tdfx/BUGS

   1 REMOVE THIS FILE BEFORE MERGING WITH TRUNK
   2 ------------------------------------------
   3
   4 OUTSTANDING BUGS
   5
   6 demos/reflect - reading back Z on Voodoo3, image offset to right
   7         Fixed in latest Glide.
   8
   9 Q3 - some polygons drawn as vertical strips, similar to bug that was
  10         seen in demos/fire.  Voodoo3 only.  May be related to glDepthMask
  11         or glColorMask.
  12
  13 book/fog - not fogging
  14         Fog in orthograph mode still not implemented.  Checking with
  15         3dfx engineers for ideas.
  16
  17 Q3 demo crashes after changing display settings
  18         but the full Q3 game version seems OK.
  19
  20
  21
  22 MORE OUTSTANDING BUGS
  23
  24 private context was NULL! causing immediate failure of any glx prog. cant
  25 reproduce after restarting the X server. putting it down as halluc.
  26
  27 texture object image was NULL, causing segmentation failure. happens with
  28 prboom. ive put a check in tdfx_texstate.c but this isn't a fix.
  29
  30 prboom, wall textures near first chainsaw aren't bound properly. sideways
  31 movements causes the wall textures to move with you. prboom busted?
  32
  33 16bpp mode, quake3, windowed, q3dm1, floor under rocketlauncher bands. it
  34 looks like multitexturing gone wrong. i'll disable a tmu and test.
  35
  36 sof, polygons appear at wrong x,y,z positions, intermittent, have not yet
  37 found reliable way of reproducing. culling? sometimes polys disappear.
  38
  39 descent3 is all black in 16bpp mode - FIXED (palette problems)
  40
  41 smeared pixels in quake3 - FIXED (texture memory overlapped FB)
  42
  43
  44
  45 PERFORMANCE COMPARISON  (Brian / Alan)
  46
  47   V3/16  is Voodoo3 in 16bpp on a P3/500
  48   V5/16  is Voodoo5 in 16bpp on a P3/600
  49   V5/32  is Voodoo5 in 32bpp on a P3/600
  50   V5A/16 is Voodoo5 in 16bpp on an Alpha AXP/600
  51   V5A/32 is Voodoo5 in 32bpp on an Alpha AXP/600
  52
  53                   tdfx-2-1-branch               tdfx-3-0-0-branch
  54 demo             V3/16 V5/16 V5/32       V3/16 V5/16 V5/32 V5A/16 V5A/32
  55 ------------------------------------------------------------------------
  56 gloss             257   183   174         320    308  177   313    167
  57 fire               42                      39                52     41
  58 fire (no help)     98    80    50         106    113   73   124     80
  59 tunnel             61                      50                70     58
  60 tunnel (no help)  167   142    57         138    152  113   171    122
  61 gears             663   554   540         881   1232  776  1484    830
  62 teapot             20                      21                37     36
  63 teapot (no help)   22    14    14          24     30   30    43     42
  64