GP4 Flickering Textures Fix for HD6850 (possibly others too)

Hi. First post, so please be gentle with me.

Having spent several days surfing looking for an answer to the flickering textures problem that was ruining an otherwise excellent game of old, I found no fixes anywhere to this long-standing annoyance. It was clearly a z-buffer problem of some kind, and my Internet travels led me to a handy utility called 3DAnalyze that's capable of emulating unsupported graphics card hardware features in software.

To cut a long story short, faking the appropriate VendorID (4098) and DeviceID (20040) for an old ATI Radeon 9800 Pro and then forcing a 24-bit z-buffer with stencil buffer works perfectly!

I used v2.36, so here's a link to that version... Clicky

Enjoy!



Edited 1 time(s). Last edit at 03/25/2015 11:56PM by Zitburger.

Pinned to the FAQ. Thanks. Pretty good for a first post.

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[www.mediafire.com] Some say you should click it, you know you want to. [www.gp4central.com] <----GP4 Central

You're welcome. My pleasure.

Am I the only one who cant run the game via GPxPatch with this tool?

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For a list of EVERY download for GP4, look here:[docs.google.com]



Edited 1 time(s). Last edit at 03/26/2015 02:14PM by Soutsen.

3DAnalyze launches the game via a custom-generated batch file and won't activate unless it does so. GPxPatch launches the game via the original 'GP4.exe' file so won't activate 3DAnalyze. Maybe someone can find a workaround?

Not a fix for the above GPxPatch problem, but something to avoid having to close 3DAnalyze manually after exiting the game. This should work on any PC running Win7, maybe Win8 too...


1/ Open up the custom launch batch file created by 3DAnalyze in the main game folder in Notepad and add EXIT thus...

"D:\3DAnalyze\3DAnalyze.exe" /EXE=D:\Games\Grand Prix 4\GP4.exe 
EXIT

Note: The specified paths are specific to your own installation and almost certainly won't match mine. Please don't change them.

2/ Save this modified version with the name Start.bat.

3/ Create a new batch file in Notepad containing the following...

@ECHO OFF
MODE CON:COLS=25 LINES=3
ECHO.
ECHO  Launching 3DAnalyze/GP4

REM Launch 3DAnalyze/GP4
START /MIN "Start.bat" Start.bat

REM Wait 5 seconds for game to launch
PING -n 6 127.0.0.1 >NUL
CLS

REM GP4.exe running detection loop
:Loop
TASKLIST /FI "IMAGENAME EQ GP4.exe" 2>NUL | FIND /I /N "GP4.exe">NUL
IF "%ERRORLEVEL%"=="0" PING -n 2 127.0.0.1 >NUL & GOTO Loop

REM Kill 3DAnalyze if GP4.exe has closed
ECHO.
ECHO      ....Exiting....
TASKKILL /IM 3DAnalyze.exe /T /F >NUL
EXIT

4/ Save this new batch file with the name GP4.bat.


Double-clicking GP4.bat will launch GP4 via 3DAnalyze. Exiting GP4 will now automatically close 3DAnalyze.

Job done!

Zitburger schrieb:
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> 3DAnalyze launches the game via a custom-generated
> batch file and won't activate unless it does so.
> GPxPatch launches the game via the original
> 'GP4.exe' file so won't activate 3DAnalyze. Maybe
> someone can find a workaround?


Hello, it's been a couple of years, did anybody find a way to get this to run in combination with gpxpatch / csm?

i bought a new monitor that supports adaptive sync / g-sync and finally got rid of the flickering issue - no aditional tool needed. just enabled g-sync in my nvidia settings.

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