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authorAdam Jackson <[email protected]>2011-06-29 10:48:43 -0400
committerAdam Jackson <[email protected]>2011-09-06 16:23:50 -0400
commitf6f2f59818f2d70190f21de2f16ab6f617fa982a (patch)
tree80d1b416a274982ab62ecd5faac6e30d71d8c73a /docs/README.3DFX
parentf4dd0991719ef3e2606920c5100b372181c60899 (diff)
Drop documentation references for deleted backends
Signed-off-by: Adam Jackson <[email protected]>
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-
- 3Dfx Glide device driver
-
-
-
-Requirements:
--------------
-
-A Voodoo-based videocard/accelerator
-DOS (with DJGPP), Windows9x/2k (with MinGW), Linux
-Glide3x library for your OS
-
-http://sourceforge.net/projects/glide/
-
-
-
-How to compile:
----------------
-
-DJGPP:
- Place the Glide3 SDK in the top Mesa directory:
- $(MESA)/glide3/include/
- 3dfx.h, g3ext.h, glide.h, glidesys.h, glideutl.h, sst1vid.h
- $(MESA)/glide3/lib/
- libgld3x.a, libgld3i.a, glide3x.dxe
- Type:
- make -f Makefile.DJ X86=1 FX=1
- Look into the makefile for further information.
-
-MinGW:
- Place the Glide3 SDK in the top Mesa directory:
- $(MESA)/glide3/include/
- 3dfx.h, g3ext.h, glide.h, glidesys.h, glideutl.h, sst1vid.h
- $(MESA)/glide3/lib/
- libglide3x.a, glide3x.dll
- Type:
- make -f Makefile.mgw X86=1 FX=1
- Look into the makefile for further information.
-
-Linux:
- Place the Glide3 SDK in /usr/local/glide
- /usr/local/glide/include/
- 3dfx.h, g3ext.h, glide.h, glidesys.h, glideutl.h, sst1vid.h
- /usr/local/glide/lib/
- libglide3x.a, libglide3x.so
- Type:
- make linux-glide
- or
- make linux-x86-glide
-
-
-
-Compilation defines:
---------------------
-
-FX_DEBUG
- enable driver debug code
-FX_TRAP_GLIDE
- enable Glide trace code
-FX_PACKEDCOLOR
- use packed color in vertex structure
-FX_TC_NAPALM
- map GL_COMPRESSED_RGB[A] to FXT1. Works with VSA100-based cards only.
-FX_COMPRESS_S3TC_AS_FXT1_HACK
- map S3TC to FXT1
-FX_RESCALE_BIG_TEXURES_HACK
- fake textures larger than HW can support
- (see MESA_FX_MAXLOD environment variable)
-
-
-
-Environment variables:
-----------------------
-
-The following environment variables affect MesaFX. Those that affect Glide
-only, are beyond the scope of this section. Entries that don't have a "Value"
-field, can have any value whatsoever
- ex: set MESA_FX_IGNORE_CMBEXT=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: dual-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", "3", "4", "5" or "6"
-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_NOSNAP
- OS: all
- HW: Voodoo1, Rush, Banshee
- Desc: do not snap vertices inside Mesa
- Note: to be used with Glide3x that snaps vertices internally
-MESA_FX_POINTCAST
- OS: all
- HW: dual-TMU cards (some Voodoo1, Voodoo2, Avenger, Napalm)
- Desc: try to use pointcast palette
- Note: may give adverse effects on UMA cards (Avenger, Napalm)
-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 option allows dual-TMU cards perform single-pass
- trilinear, but some advanced (multi)texturing modes
- won't work (GL_EXT_texture_env_combine)
-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
-MESA_FX_ALLOW_VP
- OS: all
- HW: all
- Desc: allow vertex program extensions
-MESA_GLX_FX
- OS: linux
- HW: Voodoo1, Rush, Voodoo2
- Desc: display mode
- Note: (!) experimental
- Value:
- "w" - windowed mode
- "f" - fullscreen mode
- "d" - disable glide driver
- OS: win32
- HW: Rush, Banshee, Avenger, Napalm
- Desc: display mode
- Note: (!) experimental
- Value:
- "w" - windowed mode
-
-
-
-Contact:
---------
-
-Daniel Borca <dborca 'at' users 'dot' sourceforge 'dot' net>
-Hiroshi Morii <koolsmoky 'at' users 'dot' sourceforge 'dot' net>
-
-
-
-WARNING! The info below this line is outdated (yet some of it useful). WARNING!
-*******************************************************************************
-
-
-
-Info for Mesa 4.1
------------------
-
-The 3dfx Glide driver in Mesa is disabled by default. Not too many people
-use this driver anymore and at some point down the road it will be dropped.
-
-To use/enable the Glide driver either do this:
-
-'./configure --with-glide=DIR' Where DIR is the location of Glide, like
- /usr/ or /usr/local
-
-OR
-
-'make linux-x86-glide' If using the old-style Makefile system.
-
-The rest of this file hasn't changed since Mesa 3.3. Some of it's out of
-date, but some is still valid.
-
-
-
-What do you need ?
-------------------
-
- - A PC with a 3Dfx Voodoo1/2 Graphics or Voodoo Rush based board
- (Pure3D, Monster 3D, R3D, Obsidian, Stingray 128/3D, etc.).
- The Quantum3D Obsidian3D-2 X-24 requires some special env. setting
- under Linux (more information in the "Useful Glide Environment
- Variables");
-
- - The 3Dfx Glide library 2.3 or later for your OS (the 2.4 works fine).
- The Voodoo2 requires the Glide library 2.51. The Glide 3.1 is not
- compatible with the Glide 2.x so it doesn't work with the current
- version of the driver;
-
- - A compiler supported by the Glide library (Micro$oft VC++ (tested),
- Watcom (tested), GCC for Linux (tested), etc.);
-
- - It's nice to have two monitors - one for your normal graphics
- card and one for your 3Dfx card. If something goes wrong with
- an application using the 3Dfx hardware you can still see your
- normal screen in order to recover.
-
-
-
-Tested on:
-----------
- Windows 95 - David Bucciarelli
- Windows NT - Henri Fousse
- MS-DOS
- Linux - Daryll Strauss, Brian Paul, David Bucciarelli
- FreeBSD
- BeOS - Duncan Wilcox
- MacOS - Fazekas Miklos
-
-
-What is able to do ?
---------------------
-
- - It is able accelerate points, lines and polygon with flat
- shading, gouraud shading, Z-buffer, texture mapping, blending, fog and
- antialiasing (when possible). There is also the support for rendering
- in a window with a slow trick for the Voodoo Graphics (available only
- for Linux) and at full speed with the Voodoo Rush chipset.
- Under Linux is also possible to switch on-the-fly between the fullscreen
- and in-window rendering hack.
- There is also the support for using more than one Voodoo Graphics in the
- some application/PC (you can create one context for each board and use
- multiple video outputs for driving monitors, videoprojectors or HMDs).
- The driver is able to fallback to pure software rendering when afeature
- isn't supported by the Voodoo hardware (however software rendering is
- very slow compared to hardware supported rendering)
-
-
-
-How to compile:
----------------
-
-Linux:
-------
- Here are the basic steps for using the 3Dfx hardware with Mesa
- on Linux:
-
- - You'll need the Glide library and headers. Mesa expects:
- /usr/local/glide/include/*.h // all the Glide headers
- /usr/local/glide/lib/libglide2x.so
-
- If your Glide libraries and headers are in a different directory
- you'll have to modify the Mesa-config and mklib.glide files.
-
- - Unpack the MesaLib-3.1.tar.gz and MesaDemos-3.1.tar.gz archives;
-
- - If you're going to use a newer Mesa/Glide driver than v0.27 then
- unpack the new driver archive over the Mesa directory.
-
- - In the Mesa-3.1 directory type "make linux-glide"
-
- - Compilation _should_ finish without errors;
-
- - Set your LD_LIBRARY_PATH environment variable so that the
- libglide2x.so and Mesa library files can be found. For example:
- setenv LD_LIBRARY_PATH "/usr/local/glide/lib:/SOMEDIR/Mesa-3.1/lib"
-
- - You'll have to run Glide-based programs as root or set the suid
- bit on executables;
-
- - Try a demo:
- cd gdemos
- su
- setenv MESA_GLX_FX f
- ./gears (hit ESC to exit)
-
- - You can find the demos especially designed for the Voodoo driver in
- in the Mesa-3.1/3Dfx/demos directory (type "make" in order to compile
- everything).
-
-MacOS:
-------
- Check the WEB page at http://valerie.inf.elte.hu/~boga/Mesa.html
-
-MS Windows:
------------
-
- For the MSVC++:
- - The glide2x.lib have to be in the default MSVC++ lib directory;
-
- - The Glide headers have to be in the default MSVC++ include directory;
-
- - You must have the vcvars32.bat script in your PATH;
-
- - Go to the directory Mesa-3.1 and run the mesafx.bat;
-
- - The script will compile everything (Mesa-3.1/lib/OpenGL32.{lib,dll},
- Mesa-3.1/lib/GLU32.{lib,dll}, Mesa-3.1/lib/GLUT32.{lib,dll} and
- Voodoo demos);
-
- - At the end, you will be in the Mesa-3.1/3Dfx/demos directory;
-
- - Try some demo (fire.exe, teapot.exe, etc.) in order to check if
- everything is OK (you can use Alt-Tab or Ctrl-F9 to switch between
- the Voodoo screen and the windows desktop);
-
- - Remember to copy the Mesa OpenGL32.dll, GLU32.dll and GLUT32.dll in the
- some directory were you run your Mesa based applications.
-
- - I think that you can easy change the Makefile.fx files in order
- to work with other kind of compilers;
-
- - To discover how open the 3Dfx screen, read the sources under
- the Mesa-3.1/3Dfx/demos directory. You can use the GLUT library or
- the Diego Picciani's wgl emulator.
-
- NOTE: the MSVC++ 5.0 optimizer is really buggy. Also if you install the
- SP3, you could have some problem (you can disable optimization in order
- solve these kind of problems).
-
-
-Doing more with Mesa & Linux Glide:
------------------------------------
-
- The MESA_GLX_FX environment variable can be used to coax most
- GLX-based programs into using Glide (and the __GLUT library
- is GLX-based__).
-
- Full-screen 3Dfx rendering:
- ---------------------------
-
- 1. Set the MESA_GLX_FX variable to "fullscreen":
-
- ksh:
- export MESA_GLX_FX = "fullscreen"
- csh:
- setenv MESA_GLX_FX fullscreen
-
- 2. As root, run a GLX-based program (any GLUT demo on Linux).
-
- 3. Be careful: once the 3Dfx screen appears you won't be able
- to see the GLUT windows on your X display. This can make using
- the mouse tricky! One solution is to hook up your 3Dfx card to
- a second monitor. If you can do this then set these env vars
- first:
-
- setenv SST_VGA_PASS 1
- setenv SST_NOSHUTDOWN
-
- or for the Voodoo2:
-
- setenv SSTV2_VGA_PASS 1
- setenv SSTV2_NOSHUTDOWN
-
- Rendering into an X window with the help of the Voodoo hardware:
- ----------------------------------------------------------------
-
- 1. Start your X server in 16 bpp mode (XFree86: startx -- -bpp 16)
- in order to have the best performance and the best visual
- quality. However you can use any visual depth supported by X.
-
- 2. Set the following environment variables:
- export MESA_GLX_FX="window" # to enable window rendering
- export SST_VGA_PASS=1 # to stop video signal switching
- export SST_NOSHUTDOWN=1 # to stop video signal switching
- OR
- setenv MESA_GLX_FX window
- setenv SST_VGA_PASS 1
- setenv SST_NOSHUTDOWN 1
-
- (the Voodoo2 requires to use "SSTV2_" instead "SST_").
-
- 3. As root, try running a GLX-based program
-
- How does it work? We use the 3Dfx hardware to do rendering then
- copy the image from the 3Dfx frame buffer into an X window when
- the SwapBuffers() function is called. The problem with this
- idea is it's slow. The image must be copied from the 3Dfx frame
- buffer to main memory then copied into the X window (and when the X
- visual depth doesn't match the Voodoo framebufffer bit per pixel, it
- is required also a pixel format translation).
-
- NOTE: the in-window rendering feature only works with double-buffering.
-
-
- On the fly switching between in window rendering and full screen rendering
- --------------------------------------------------------------------------
-
- The Mesa 2.6 has introduced the capability of switching
- on-the-fly between the fullscreen/fullspeed rendering and the in-window
- hack and vice versa. The on-the-fly switching requires a direct support
- by the application but it is really easy to add. You have to start
- your X server in 16 bpp mode and to add the following lines to your
- application:
-
- #if defined(FX) && define(XMESA)
- #include <GL/xmesa.h>
-
- static int fullscreen=1;
- #endif
-
- ...
-
- /* In the GLUT keyboard event callback */
-
- #if defined(FX) && !define(WIN32)
- case ' ':
- fullscreen=(!fullscreen);
- XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
- break;
- #endif
- ...
-
- See the 3Dfx/demos/tunnel.c program
- for an example. You have to set the -DXMESA flag in the Makefile's COPTS
- to enable it.
-
- Rendering into an X window with the X11 software driver:
- --------------------------------------------------------
-
- Set the MESA_GLX_FX variable to "disable" your GLX-based program will use
- the X11 software driver (the 3Dfx hardware isn't used at all).
-
-
-
-Useful Glide Environment Variables:
------------------------------------
-
- - To disable the 3Dfx logo, set the FX_GLIDE_NO_SPLASH variable.
-
- - To disable video signal switching:
- setenv SST_VGA_PASS 1
- setenv SST_NOSHUTDOWN
- or for the Voodoo2:
- setenv SSTV2_VGA_PASS 1
- setenv SSTV2_NOSHUTDOWN
-
- - To set the default screen refresh rate:
- setenv SST_SCREENREFRESH=75
-
- the supported values are 60, 70, 72, 75, 80, 85, 90, 100, 120.
-
- - To force the Mesa library to swap buffers as fast as possible,
- without any vertical blanking synchronization (useful for benchmarks):
- setenv FX_GLIDE_SWAPINTERVAL 0
- setenv SST_SWAP_EN_WAIT_ON_VIDSYNC 0
-
- - You can slight improve the performances of your Voodoo1 board with
- the following env. var.:
- setenv SST_FASTMEM 1
- setenv SST_PCIRD 1
- setenv SST_GRXCLK 57
-
- (don't use this setting with the Quantum3D 100SB or with any other
- SLI configuration: it will hang everything !).
- The following setting can be used with the Voodoo2:
- setenv SSTV2_FASTMEM_RAS_READS=1
- setenv SSTV2_FASTPCIRD=1
- setenv SSTV2_GRXCLK=95
-
- - The Quantum3D Obsidian3D-2 X-24 requires some special env. setting
- in order to work under Linux:
-
- export SSTV2_FT_CLKDEL=5
- export SSTV2_TF0_CLKDEL=7
- export SSTV2_TF1_CLKDEL=7
- export SSTV2_TF2_CLKDEL=7
- export SSTV2_SLIM_VIN_CLKDEL=3
- export SSTV2_SLIM_VOUT_CLKDEL=2
- export SSTV2_SLIS_VIN_CLKDEL=3
- export SSTV2_SLIS_VOUT_CLKDEL=2
-
- (Thanks to Phil Ross for this trick).
-
-
-
-
-The Mesa/Voodoo Environment Variables:
---------------------------------------
-
- - Only for Windows/Voodoo Rush users, if you define the
- env. var. MESA_WGL_FX:
- export MESA_WGL_FX=fullscreen
- you will get fullscreen rendering;
-
- - Only for Windows/Voodoo Rush users, if you define the
- env. var. MESA_WGL_FX:
- export MESA_WGL_FX=window
- you will get window rendering (default value);
-
- - Only for Linux users, you can find more informations about
- the env. var. MESA_GLX_FX in the "Doing more with Mesa & Linux Glide"
- section;
-
- - If you define the env. var. MESA_FX_SWAP_PENDING:
- export MESA_FX_SWAP_PENDING=4
- you will able to set the maximum number of swapbuffers
- commands in the Voodoo FIFO after a swapbuffer (default value: 2);
-
- - If you define the env. var. MESA_FX_INFO:
- export MESA_FX_INFO=1
- you will get some useful statistic.
-
- - If you define the env. var. MESA_FX_NO_SIGNALS:
- export MESA_FX_NO_SIGNALS=1
- Mesa/FX will not install atexit() or signal() handlers.
-
-
-
-Know BUGS and Problems:
------------------------
-
- - fog doesn't work in the right way when using the glDepthRange() function;
-
- - Maximum texture size: 256x256 (this is an hardware limit);
-
- - Texture border aren't yet supported;
-
- - A GL_BLEND in a glTexEnv() is not supported (it is an hardware limit);
-
- - Use the glBindTexture extension (standard in OpenGL 1.1) for texture
- mapping (the old way: glTexImage inside a display list, download
- the texture map each time that you call the display list !!!);
-
- - Stencil buffer and Accumulation buffer are emulated in software (they are not
- directly supported by the Hardware);
-
- - Color index mode not implemented (this is an hardware limit);
-
- - Thre is an know bug in the Linux Glide library so the in-window-rendering hack
- and any other operations that requires to read the Voodoo frame buffer
- (like the accumulation buffer support) doesn't work on Voodoo SLI cards.
-
- - The driver switch to pure software (_slow_) rendering when:
-
- - Stencil enabled;
- - Using the Accumulation buffer;
- - Blend enabled and blend equation != GL_FUNC_ADD_EXT;
- - Color logic operation enabled and color logic operation != GL_COPY;
- - Using GL_SEPARATE_SPECULAR_COLOR;
- - The four values of glColorMask() aren't the some;
- - Texture 1D or 3D enabled;
- - Texture function is GL_BLEND;
- - Using the Multitexture extension with Voodoo cards with only one TMU;
- - Using the Multitexture extension with Voodoo cards with more than
- one TMU, and texture function isn't GL_MODULATE;
- - Point size is != 1.0 or point params vector != (1.0,0.0,0.0);
- - Line width != 1.0 or using stipple lines.
- - Using polygon offset or stipple polygons;
-
- NOTE: this is list is not yet complete.
-
-
-Hints and Special Features:
----------------------------
-
- - Under Linux and with a Voodoo Graphics board, you can use
- XMesaSetFXmode(XMESA_FX_FULLSCREEN or XMESA_FX_WINDOW) in order to
- switch on the fly between fullscreen rendering and the in-window-rendering
- hack.
-
- - The driver is able to use all the texture memory available: 2/4MB on
- Voodoo1 boards and 8MB (!) on high-end Voodoo1 and Voodoo2 boards.
-
- - Trilinear filtering is fully supported on Voodoo boards with two TMUs
- (high-end Voodoo1 boards and Voodoo2 boards). When only one TMU is
- available the driver fallback to bilinear filter also if you ask
- for trilinear filtering.
-
- - The Voodoo driver support multiple Voodoo Graphics boards in the
- some PC. Using this feature, you can write applications that use
- multiple monitors, videoprojectors or HMDs for the output. See
- Mesa-3.1/3Dfx/demos/tunnel2.c for an example of how setup one
- context for each board.
-
- - The v0.19 introduces a new powerful texture memory manager: the
- texture memory is used as a cache of the set of all defined texture
- maps. You can now define several MBs of texture maps also with a 2MB
- of texture memory (the texture memory manager will do automatically
- all the swap out/swap in
- texture memory work). The new texture memory manager has also
- solved a lot of other bugs/no specs compliance/problems
- related to the texture memory usage.
-
- - Use triangles and quads strip: they are a LOT faster than sparse
- triangles and quads.
-
- - The Voodoo driver supports the GL_EXT_paletted_texture. it works
- only with GL_COLOR_INDEX8_EXT, GL_RGBA palettes and the alpha value
- is ignored because this is a limitation of the current Glide
- version and of the Voodoo hardware. See Mesa-3.1/3Dfx/demos/paltex.c for
- a demo of this extension.
-
- - The Voodoo driver directly supports 3Dfx Global Palette extension.
- It was written for GLQuake and I think that it isn't a good idea
- to use this extension for any other purpose (it is a trick). See
- Mesa-3.1/3Dfx/demos/glbpaltex.c for a demo of this extension.
-
- - The Voodoo driver chooses the screen resolution according to the
- requested window size. If you open a 640x480 window, you will get
- a 640x480 screen resolution, if you open a 800x600 window, you
- will get a 800x600 screen resolution, etc.
- Most GLUT demos support the '-geometry' option, so you can choose
- the screen resolution: 'tunnel -geometry 800x600'.
- Clearly, you Voodoo board must have enough framebuffer RAM (otherwise
- the window creation will fail).
-
- - The glGetString(GL_RENDERER) returns more information
- about the hardware configuration: "Mesa Glide <version>
- <Voodoo_Graphics|Voodoo_Rush|UNKNOWN> <num> CARD/<num> FB/
- <num> TM/<num> TMU/<NOSLI|SLI>"
- where: <num> CARD is the card used for the current context,
- <num> FB is the number of MB for the framebuffer,
- <num> TM is the number of MB for the texture memory,
- <num> TMU is the number of TMU. You can try to run
- Mesa/demos/glinfo in order to have an example of the output.
-
-Did you find a lot BUGs and problems ? Good, send me an email.
-
-
-
-FAQ:
-----
-
-For a complete FAQ check the Bernd Kreimeier's Linux 3Dfx HOWTO
-available at http://www.gamers.org/dEngine/xf3D (it includes also
-a lot of informations not strictly related to Linux, so it can be
-useful also if you don't use Linux)
-
-1. What is 3Dfx?
-
-3Dfx Interactive, Inc. is the company which builds the VooDoo 3-D graphics
-chipset (and others) used in popular PC cards such as the Diamond Monster 3D
-and the Orchid Righteous 3D (more informations at http://www.3dfx.com).
-
-
-2. What is Glide?
-
-Glide is a "thin" programming interface for the 3Dfx hardware. It was
-originally written for Windows/Intel but has been ported to Linux/Intel
-by Daryll Strauss.
-
-3Dfx, Inc. should be applauded for allowing the Linux version of Glide
-to be written.
-
-You can directly program with the Glide library if you wish. You can
-obtain Glide from the "Developer" section of the 3Dfx website: www.3dfx.com
-There's a Linux/Glide newsgroup at news://news.3dfx.com/3dfx.glide.linux
-
-
-3. What is fxmesa?
-
-"fxmesa" is the name of the Mesa device driver for the 3Dfx Glide library.
-It was written by David Bucciarelli and others. It works on both Linux
-and Windows. Basically, it allows you to write and run OpenGL-style programs
-on the 3Dfx hardware.
-
-
-4. What is GLQuake?
-
-Quake is a very popular game from id software, Inc. See www.idsoftware.com
-GLQuake is a version of Quake written for OpenGL. There is now a Linux
-version of GLQuake with works with the Mesa/3Dfx/Glide combo.
-
-Here's what you need to run GLQuake on Linux:
- PC with 100MHz Pentium or better
- a 3Dfx-based card
- Mesa 3.1 libraries: libMesaGL.so libMesaGLU.so
- Glide 2.4 libraries: libglide2x.so libtexus.so
- GLQuake for Linux.
-
-Also, the windows version of GLQuake works fine with the Mesa OpenGL32.dll,
-you have only to copy the Mesa-3.1/lib/OpenGL32.dll in the GLQuake directory
-in order to test 'MesaQuake'.
-
-
-5. What is GLUT?
-
-GLUT is Mark Kilgard's OpenGL Utility Toolkit. It provides an API for
-writing portable OpenGL programs with support for multiple windows, pop-
-up menus, event handling, etc.
-
-Check the Mark's home page for more informations (http://reality.sgi.com/mjk_asd).
-
-Every OpenGL programmer should check out GLUT.
-
-GLUT on Linux uses GLX.
-
-
-6. What is GLX?
-
-GLX is the OpenGL extension to the X Window System. I defines both a
-programming API (glX*() functions) and a network protocol. Mesa implements
-an emulation of GLX on Linux. A real GLX implementation would requires
-hooks into the X server. The 3Dfx hardware can be used with GLX-based
-programs via the MESA_GLX_FX environment variable.
-
-
-7. Is the Voodoo driver able to use the 4Mb texture memory of
-the Pure3D boards ?
-
-Yes, the Voodoo driver v0.20 includes the support for Voodoo
-Graphics boards with more than 2Mb of texture memory.
-
-
-8. Do the Voodoo driver support the Voodoo Rush under Windows ?
-
-Yes, Diego Picciani has developed the support for the Voodoo
-Rush but David Bucciarelli has a Pure3D and a Monster3D and Brian Paul
-has a Monster3D, so the new versions of the Mesa/Voodoo sometime are
-not tested with the Voodoo Rush.
-
-
-9. Do the Voodoo driver support the Voodoo Rush under Linux ?
-
-No because the Linux Glide doesn't (yet) support the Voodoo Rush.
-
-
-10. Can I sell my Mesa/Voodoo based software and include
-a binary copy of the Mesa in order to make the software
-working out of the box ?
-
-Yes.
-
-
-11. Which is the best make target for compiling the Mesa for
-Linux GLQuake ('make linux-glide', 'make linux-386-glide', etc.) ?
-
-'make linux-386-opt-glide' for Voodoo1 and 'make linux-386-opt-V2-glide'
-for Voodoo2 boards because it doesn't include the '-fPIC'
-option (4-5% faster).
-
-
-12. Can I use a Mesa compiled with a 'make linux-386-opt-V2-glide'
-for my applications/programs/demos ?
-
-Yes, there is only one constrain: you can't run two Mesa applications
-at the some time. This isn't a big issue with the today Voodoo Graphics.
-
-
-Thanks to:
-----------
-
-Henri Fousse (he has written several parts of the v0.15 and the old GLUT
- emulator for Win);
-
-Diego Picciani (he has developed all the Voodoo Rush support and the wgl
- emulator);
-
-Daryll Strauss (for the Linux Glide and the first Linux support);
-
-Brian Paul (of course);
-
-Dave 'Zoid' Kirsch (for the Linux GLQuake and Linux Quake2test/Q2 ports)
-
-Bernd Kreimeier (for the Linux 3Dfx HOWTO and for pushing companies to offer
- a better Linux support)
-
-3Dfx and Quantum3D (for actively supporting Linux)
-
-The most update places where find Mesa VooDoo driver related informations are
-the Mesa mailing list and my driver WEB page
-(http://www-hmw.caribel.pisa.it/fxmesa/index.shtml)
-
-
-David Bucciarelli ([email protected])
-
-Humanware s.r.l.
-Via XXIV Maggio 62
-Pisa, Italy
-Tel./Fax +39-50-554108
-www: www-hmw.caribel.pisa.it