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Kylotan

OpenGL
OpenGL drivers appear to do nothing...

35 posts in this topic

I ran GLSetup, it all went ok, it installed the right drivers for my card, but when I run the NeHe tutorials I get absolutely no hardware acceleration. All the implications have been that, if you use OpenGL and have the drivers, acceleration is automatic. Is it really that hard to get OpenGL to work properly?
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I had a similar problem in the past but once installed glsteup everything went ok, is your board an old one maybe its not opengl 1.1 compliant...

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The pc in question has an Orchid Righteous (basically, a Voodoo 1) card, running Win98 SE. GLSetup should work.
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Hmmm, I really don''t think the voodoo 1 is OGL 1.1 compliant. But, check it''s settings, and make sure that everything looks good. Try using an example using the GLUT library, see if that helps at all, if none of the above work, well, im out of ideas.

------------------------------
Trent (ShiningKnight)
E-mail me
Shining Darkness- A division of Chromesphere Studios
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voodoo cards have always had problems , the voodoo1 drivers are at least opengl1.1 quake2 wouldnt run otherwise. try searching for quake3arena compatible drivers.
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I wouldn''t know where to get such drivers. All I know, is that these are the drivers installed by GLSetup, which is pretty much the only place any site tells you to go to install OpenGL drivers... if these don''t work for simple examples, I doubt anything''s gonna work (except perhaps minidrivers for specific games or something).
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it''s obviously not the same problem, but i did have a problems getting opengl apps to run properly... as it turned out it i needed a new driver for the motherboard, and everything worked as a charm...
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I have a Voodoo Banshee, and never got OpenGL acceleration properly. Yes, I''ve done some OpenGL using the Quake mini-gl drivers, but many things were broken, and it only worked in full screen mode. Perhaps the demos use an incompatible pixelformat, or a feature not implemented.

Maybe you could use a program to inquire the capabilities of the board. (This came to my mind... what does the "PFD_DRAW_TO_WINDOW" do exactly? If I remember correctly, Voodoo 1 can only work in fullscreen mode)

Gaiomard Dragon
-===(UDIC)===-
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I used to have a Diamond Monster 3d which was also a voodoo1.
3DFX released a ~different~ version of their card some years later which actually did support opengl. It was sold as the 3dfx voodoo1 (on the box and all). Your card probably only supports the GL mini drivers for quake1/2.
Problem: My voodoo1 would not work for quake3 which will only run with a 100% compliant card.
Solution: Bought a new opengl compliant video card.
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It''s a standard problem on Voodoo1 and 2 cards: The installed driver is NOT opengl32.dll but 3dfxvgl.dll . When NeHe''s examples activate the OpenGL subsystem, it automatically loads opengl32.dll, which is the original MS software driver. Easy solution: backup opengl32.dll and rename 3dfxvgl.dll to opengl32.dll, that''s all.
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that should automatically be rerouted though

look at the registry

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\OpenGLdrivers
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> that should automatically be rerouted though

No it''s not. Don''t know for the Voodoo1, but it''s not for the Voodoo2. Simply because it is not a fully compliant OpenGL driver, even the most recent ones aren''t. If you don''t want to rename it, you still have to search for the 3dfxvgl.dll in your code and load it manually. Look at the startup-sequence of Quake3 for an example. This problem was solved with the Voodoo3.
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Are you running the tutorials in fullscreen? The voodoo1 did not support windowed acceleration. I use to have that problem with my voodoo3.
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Yes, I am running them in fullscreen, I know about it not accelerating in windowed mode.

I did the file-renaming thing, and it, er, almost worked The 3D card kicked in, but the screen just went blue and I couldn''t get back to my normal video mode and had to reset the PC. So that''s getting changed back
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try downloading ...

http://www.delphi3d.net/download/glinfo.zip

print out the report, and check the pixel formats that are supported on your card ... make sure the nehe example code is using the same ...
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I don''t quite understand why you''d want to use that card anyway, when you could get a Voodoo3/4 for cheap now that 3dfx is under...

Don''t use the drivers from GLSetup if they don''t work. Head to www.3dfx.com and download their drivers. My rule of thumb is that if a version of GLSetup doesn''t work the first time, it''ll never work. Always try the manufacturer''s drivers first.

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gph-gw: Because (a) cheap does not equal zero, and (b) most newer cards require AGP ports.

The drivers at 3dfx.com are older than my Win98SE drivers, and the link to their OpenGL drivers on the 3dfx site was dead when I checked it. I don''t want to install older drivers over newer drivers; the last time I did that for a graphics card, I got the video going dead whenever I scrolled to the bottom of a web page.

By the way, ''Shag'' (nice name), that utility doesn''t tell me much. It seems to be talking more about the drivers than the card, but either way it''s not too clear. In this case, the drivers are the Microsoft ones again, since I changed the file names back to avoid any further crashes. The tutorial uses 640x480x16, which I''m pretty sure a Voodoo 1 can deal with.
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Make sure the demo is in 16 bit color, else no 3dfx card can handle it. Also make sure your color depth in Winblows is 16 bit as well.
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Make sure the demo is in 16 bit color, else no 3dfx card can handle it. Also make sure your color depth in Winblows is 16 bit as well. One more thing to check would be the size of the textures used (if any) i think the VooDoo1 chipset could only handle 32x32 or 64x64 textures.
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> i think the VooDoo1 chipset could only handle 32x32 or 64x64 textures

The Voodoo1 can handle textures up to 256*256, just as any other 3dfx chipset up to the voodoo3.

As for your ''crash'', Kylotan: Actually, it''s not a real crash. If the Voodoo1 isn''t uninitialized correctly, then it doesn''t reactivate the video bypass mode of the video signal. That means, that your system is running normally, but you just can''t see it, since the Voodoo locks the video signal.

Try the following: run a NeHe example, and when you get the locked up blue screen, take off the video bypass cable and connect your monitor directly to the 2D card. Now you should see your normal Windows desktop. Look for any error dialogs, if something went wrong, then there should be an error message telling you about.
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Oh, and something else: The problem is not the video mode, since Kylotan said the Voodoo kicked in. The voodoo chipset can only be activated, if the video mode is supported by the card, otherwise you''ll get an error and the voodoo won''t do a thing.
Did you checked your Glide drivers ? The OpenGL drivers are based on Glide, so you should check those aswell (Glide2x.dll or Glide3x.dll).
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If you see a really cheap PCI TNT 2 around somewhere (they''re pretty cheap now that the Geforce 1, 2, and 3 have been around a long time) pick it up. It''s probably the best OpenGL supporter in its price range that fits in a PCI slot. I don''t think I''d pay over $40 for one though (many are still sold for up to $80, which is way too much).

I''m really broke too, so I know that buying new hardware isn''t always an option (I''ve been saving up for 9 monthes, and I''m going to finally upgrade from my TNT2 tomorrow, assuming I can find what I''m looking for locally ) but it will make your OpenGL development days SO much easier .

[Resist Windows XP''s Invasive Production Activation Technology!]
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