OPENGL tearing & noise in GTA3, Wolfstien, SOF II

[moshem]

Hi,

I recently tried several of games, all exhibit the same problems , all use OPENGL as a rendering engine.

Return to castle Wolfstien 16bit shows wierd stuff when the game fades in and out.

GTA 3 16bit, shows all graphics a dithered (with points where solids should be)

and now, Soldier of Fortune II , 16bit , shows the same dithered problem, and lots of noise (pixels and lines appearing with no real reason and usually in white & yellow colours) when moving in 3D space.

I tried just about everything.

I have G400 16MB, Windows XP Pro with all the latest updates, DirectX 8.1, Latest G400 Bios, Latest G400 drivers (27 may), latest ICD (as of April this year).

Nothing helps...


can you help ?

[ChenSoft]

Check This Out

http://forum.matrox.com/mgaforum/For...ML/004337.html

They'll try 2 fix it on the final relese of 5.84

--------------------------
Chen

[Maggi]

Re: OPENGL tearing & noise in GTA3, Wolfstien, SOF II

Originally posted by moshem
...

Return to castle Wolfstien 16bit shows wierd stuff when the game fades in and out.

...

use Matrox' own TweakUtil and enable VSync for OpenGL ...

[Dr Mordrid]

eYup. Without VSYNCH on you can easily get tearing, artifacting etc. due to the monitors nominal refresh rate being exceeded by the frame rate.

There was an interesting article on this over at Digital Silence. Basically they interviewed several game content creators. Their bottom line was to only turn off VSYNCH when benchmarking and to use VSYNCH when gaming for top quality. So much for the utility of those 150-200 fps benchmarks.

The only instance that where VSYNCH off was recommended was on a low performance system in order to squeeze every fps possioble out of it for playability.

Quote from Tim Sweeney, Epic Games;

"I don't have any clue why someone would disable VSync for gameplay. The only legit reason for this is to benchmark 3D card performance without the monitor's refresh rate skewing the results...........There is no visual benefit to having a game render more frames per second than your monitor is displaying."

http://www.d-silence.com/video/vsync1.shtml

Dr. Mordrid

[zandor]

GTA3

The grainy visuals in GTA3 might just be from the brightness being up too high. I've noticed high brightness seems to do something like this (looks dithered) on my system.

Just as a side note, I picked up a nice performance gain on my system by shrinking my AGP aperture setting in the bios to 16MB. Rockstar mentions this on thier website (actually, their example was 64MB down to 4) if you can actually find thier support FAQ.
It used to be choppy on 640x480x16 with distance set to minimum, now it runs pretty well on my G400DH + dual PIII 1.0 system in 800x600x16 with the draw distance most of the way up.

Mike

[EvilDonnyboy]

GTA3 uses D3D, not openGL...