The following environment variables affect MesaFX 0.51f and above. Those that
affect Glide only, are beyond the scope of this file.
The entries that don't have a "Value" field, can have any value whatsoever
ex: set MESA_FX_IGNORE_TEXUS2=y
"Note" (*) means that the environment variable affects Glide, too; also, if
the var is not found in the environment, it is searched in windoze registry.
"Note" (!) means that the environment variable is not working as expected;
may have undefined effects, might have effects only at Glide level or might
not have any effect whatsoever. Caveat emptor! Those are to be revised soon.
It is recommended to leave the envvars alone, so that Mesa/Glide will run with
default values. Use them only when you experience crashes or strange behavior.
FX_GLIDE_NUM_TMU
OS: all
HW: 2 TMU cards (Voodoo2, Avenger, Napalm)
Desc: force single-TMU
Note: (*)
Value: "1"
FX_GLIDE_SWAPPENDINGCOUNT
OS: all
HW: all
Desc: max # of buffers allowed to build up
Note: (*) (!)
Value: "0", "1", "2" or "3"
FX_GLIDE_SWAPINTERVAL
OS: all
HW: all
Desc: number of vertical retraces to wait before swapping
Note: (*) (!) works only at Glide-level?
SSTH3_SLI_AA_CONFIGURATION
OS: all
HW: VSA100-based cards
Desc: SLI/AA setup
Note: (*) (!) works only at Glide-level?
Value:
1, 2, 4 chip cards
"0" - SLI & AA disable
"1" - SLI disabled, 2 sample AA enabled
2, 4 chip cards
"2" - 2-way SLI enabled, AA disabled
"3" - 2-way SLI enabled, 2 sample AA enabled
"4" - SLI disabled, 4 sample AA enabled
4 chip cards
"5" - 4-way SLI enabled, AA disabled
"6" - 4-way SLI enabled, 2 sample AA enabled
"7" - 2-way SLI enabled, 4 sample AA enabled
"8" - SLI disabled, 8 sample AA enabled
SST_DUALHEAD
OS: win32
HW: ?
Desc: ?
Note: (!) disabled?
MESA_FX_NO_SIGNALS
OS: linux
HW: all
Desc: avoid installing signals
Note: (!) untested!
MESA_FX_INFO
OS: all
HW: all
Desc: verbose to stderr
Value: any; special value "r" to redirect stderr to MESA.LOG
MESA_FX_IGNORE_PALEXT
OS: all
HW: all
Desc: disable 6666 palette
MESA_FX_IGNORE_PIXEXT
OS: all
HW: Napalm
Desc: force 565 16bpp mode (traditional Voodoo, no 32/15bpp)
MESA_FX_IGNORE_TEXFMT
OS: all
HW: Napalm
Desc: disable 32bit textures
MESA_FX_IGNORE_CMBEXT
OS: all
HW: Napalm
Desc: disable Napalm combiners (color/alpha/texture)
Note: this means advanced (multi)texturing modes won't
work, but disabling this turns on REAL trilinear
MESA_FX_IGNORE_MIREXT
OS: all
HW: all
Desc: disable mirror extension
MESA_FX_IGNORE_TEXUMA
OS: all
HW: all
Desc: disable UMA
MESA_FX_IGNORE_TEXUS2
OS: all
HW: all
Desc: disable Texus2
MESA_FX_MAXLOD
OS: all
HW: non Vsa-100 cards
Desc: enable large texture support using SW rescaling
Value:
"9" - 512x512 textures
"10" - 1024x1024 textures
"11" - 2048x2048 textures
Have fun and good luck! :D
dborca 'at' 3dfxzone 'dot' it
koolsmoky 'at' 3dfxzone 'dot' it
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