Did you try it with the original OVL file? If a game is out of the box compatible with a Voodoo 2, you shouldn't need to change anything.

You must use a GLIDE2X.OVL file from an older Voodoo2 driver since the ones that comes on the recent drivers has compatibility issues. Also it seems that a patch is required but you are using the demo version of the games.

The GLIDE2X.OVL file included on games are usually meant for Voodoo Graphics.

SScorpio wrote on 2021-09-06, 12:38:

Did you try it with the original OVL file? If a game is out of the box compatible with a Voodoo 2, you shouldn't need to change anything.

With the original OVL the card is not recognized, the game stopped at a "Select your Voodoo" screen without giving me the option to select the card.

Gmlb256 wrote on 2021-09-06, 13:03:

You must use a GLIDE2X.OVL file from an older Voodoo2 driver since the ones that comes on the recent drivers has compatibility issues. Also it seems that a patch is required but you are using the demo version of the games.

The GLIDE2X.OVL file included on games are usually meant for Voodoo Graphics.

What do you mean for "The GLIDE2X.OVL file included on games are usually meant for Voodoo Graphics."?

matti157 wrote on 2021-09-06, 15:12:

What do you mean for "The GLIDE2X.OVL file included on games are usually meant for Voodoo Graphics."?

The original OVL file that comes with the game may not work on the Voodoo2 because that card was released when DOS was going out of mainstream support.

Voodoo Graphics = Voodoo 1 like most users here say.

I try with various versione (Creative 2.16, reference 1.2.51, 3.2.2 but nothing:(

matti157 wrote on 2021-09-06, 22:48:

I try with various versione (Creative 2.16, reference 1.2.51, 3.2.2 but nothing:(

Well, I'm going to download the demo and test it on my old computer and let you know.

Downloaded the demo and deleted the GLIDE2X.OVL from the game directory and it worked flawlessly.

Note that I disabled the 3Dfx splash screen through an environment variable (FX_GLIDE_NO_SPLASH) and the GLIDE2X.OVL file that I'm using for DOS dates from Apr 3rd 1998 and comes from an early reference driver (1.2.50).

Gmlb256 wrote on 2021-09-06, 23:03:

Downloaded the demo and deleted the GLIDE2X.OVL from the game directory and it worked flawlessly.

Note that I disabled the 3Dfx splash screen through an environment variable (FX_GLIDE_NO_SPLASH) and the GLIDE2X.OVL file that I'm using for DOS dates from Apr 3rd 1998 and comes from an early reference driver (1.2.50).

Thanks, I'll try tonight

Gmlb256 wrote on 2021-09-06, 23:03:

Downloaded the demo and deleted the GLIDE2X.OVL from the game directory and it worked flawlessly.

Note that I disabled the 3Dfx splash screen through an environment variable (FX_GLIDE_NO_SPLASH) and the GLIDE2X.OVL file that I'm using for DOS dates from Apr 3rd 1998 and comes from an early reference driver (1.2.50).

I tried with the version 1.2.50 but is still unplayable...
http://falconfly.3dfx.pl/voodoo2.htm

The FPS has increased slightly but it will be 5fps ...

Am I CPU limited?

matti157 wrote on 2021-09-08, 09:03:

I tried with the version 1.2.50 but is still unplayable... http://falconfly.3dfx.pl/voodoo2.htm […]
Show full quote

Gmlb256 wrote on 2021-09-06, 23:03:

Downloaded the demo and deleted the GLIDE2X.OVL from the game directory and it worked flawlessly.

Note that I disabled the 3Dfx splash screen through an environment variable (FX_GLIDE_NO_SPLASH) and the GLIDE2X.OVL file that I'm using for DOS dates from Apr 3rd 1998 and comes from an early reference driver (1.2.50).

I tried with the version 1.2.50 but is still unplayable...
http://falconfly.3dfx.pl/voodoo2.htm

The FPS has increased slightly but it will be 5fps ...

Am I CPU limited?

No, that 233 mmx can run the game easily.

I have a similar rig but I've never tried running the game under pure DOS. I run the DOS version under Window 95C. No problems.

I recall it running pretty decently for me under DOS with a P200 non-MMX and Voodoo 1.

matti157 wrote on 2021-09-08, 09:03:

Am I CPU limited?

Unlikely. I just tried the 3DFX GTA demo that you linked on my Pentium MMX 166 + Voodoo1 system and it ran fine.

I used the OVL file that was included with the game.

matti157 wrote on 2021-09-08, 09:03:

Am I CPU limited?

No. Seems that the problem is something else with your computer. Does other DOS Glide games works fine on that computer?

Using the OVL included with GTA with Voodoo2 will get you a "What 3dfx card?" on the screen.

BTW, 64MB DDR RAM? Should be SDRAM in this case.

Gmlb256 wrote on 2021-09-08, 11:31:

No. Seems that the problem is something else with your computer. Does other DOS Glide games works fine on that computer? […]
Show full quote

matti157 wrote on 2021-09-08, 09:03:

Am I CPU limited?

No. Seems that the problem is something else with your computer. Does other DOS Glide games works fine on that computer?

Using the OVL included with GTA with Voodoo2 will get you a "What 3dfx card?" on the screen.

BTW, 64MB DDR RAM? Should be SDRAM in this case.

I have the same message with the included OVL

Yes SDRAM 😅