Wierd FSAA problem w/ V5. Please look! I BELIEVE PROBLEM IS RESOLVED

[moocat]

Is it possible for a Voodoo 5 to have FSAA broken but work fine otherwise? I can run high resolutions with great framerate in the games I play. But when I enable 2x FSAA the performance goes to hell even at low res. This is my third V5 so I'm familiar with the normal drop off in frame rate with FSAA enabled but this seems excessive and I've currently got an AGP V5 in my primary system so I have a pretty good idea about the performance with the software I'm running. I've tried clean installs of three different driver sets and have the settings all on default (though I've tried many different combinations). All I know for sure is that 2x FSAA is unplayable at any resolution in any of the games I play (driving sims primarily).

My system is running 98SE, DX8, and is setup almost identically to my primary computer. Something is certainly NOT right but I don't know enough about how FSAA is implemented to know if it's possible for just that aspect of the card to be defective.

 

[Cherrypez]

Microsoft probably agreed to break the FSAA abilities of the V5 with DX8 as a favor to Nvidia.

Well, that's my guess anyway.

 

[TravisBickle]

V5 fsaa implementation is entirely transparent to software unlike the competitors'.
could you post some benchmark comparisons. also, are you sure that 4xfsaa is not somehow enabled. look closely on the screen. perhaps your registry is corrupted, but it's a shame you can't uninstall dx8.

 

[moocat]

My primary computer is also using a V5 (agp instead of pci though) with DX8 and it's working just fine. The performance is what I'd expect with 4x instead of 2x fsaa. I'll see if that is what is going on. I doubt it though since it doesn't look like it's doing 4x.

I'll put up some benchmarks later today.

 

[moocat]

Problem seems to be related to just certain software titles. Benchmarks scores are about where I would expect them to be at 2x and 4x fsaa. The most effected game is an older driving sim called Grand Prix Legends. 2x fsaa takes it down to 18 fps at all resolutions. Typically it would be pegged at 36fps (it uses a frame limiter) even at 1024x780 w/2xfsaa. At least it appears the hardware is not the problem.

Thanks for the input.

 

[TravisBickle]

sorry we could not help you more. can you do a full run down of your rig?

 

[moocat]

I think it is a problem with that particular game. If I remember right it looks for a rasterizer in it's home directory before going to the system files. I think I just need to rename that file and force it to use the updated rasterizer that came with the newer driver set. It was previously using a V3 3k and I remember I had to shuffle some files to get it to work properly.