TerrainRendering DX9 bug!

mrbrdo · Post by **mrbrdo** » Sun Jan 21, 2007 8:25 pm

Hello

I'm not sure if this is just something with my system, but when i compile and run the TerrainRendering example (i use Code::Blocks - the MinGW compiler), if i use the OpenGL driver it works great, but if i use DirectX 9.0c, i see triangles which "bleed" trough. I played a lot of games that use DirectX and i never had any problem like this. When i don't use DirectX this doesn't happen. Here's a pic:

Can someone else try too please, if they have the same problem? Any idea what this could be?

hybrid · Post by **hybrid** » Sun Jan 21, 2007 8:57 pm

It's probably a driver problem. Try updating your drivers.

mrbrdo · Post by **mrbrdo** » Sun Jan 21, 2007 10:39 pm

I didn't have any problems with any game that use DirectX though (World of Warcraft, Unreal Tournament 2004...) at all - no glitches whatsoever. Does the example work for you if you use directx 9.0c?

Note i'm using DirectX 10 (WinVista) - but it does work flawlessly with all games i've tried.

greenya · Post by **greenya** » Mon Jan 22, 2007 12:04 am

get some time to show my results:
as you see i have cheap Radeon X200M and it renders using Direct3D9 driver very ok.

Your video card looks like has artifacts. it is possible from many reasons:
- possible not enough cooling to you system ( hardware );
- your video card is over clocked ( memory frequency or GPU );
- your processor over clocked ( but it would hand the system from time to time );
- you have got some trouble with FPU ( kind of mathematic processor );

P.S.: The best way to check is to pass all tests couple of times using some latest 3D Mark ( like 2005 or later, i don't know ). As I know it has free trial period.

ErUs · Post by **ErUs** » Mon Jan 22, 2007 12:05 am

smells like conspiracy.
i saw niko talking to the GNU people and they hate directx.

Luke · Post by **Luke** » Mon Jan 22, 2007 3:26 am

I'm getting bugs like that in the SVN running DirectX 9.0c,

no problems with openGL driver, and no problems with any other game in directx,

I compiled irrlicht with the MinGW compiler in Code::Blocks too, so maybe its not a problem with irrlicht?

sRc · Post by **sRc** » Mon Jan 22, 2007 5:56 am

just updated to latest SVN and built it, I'm not having those glitches

using VS2005 compiler

mrbrdo · Post by **mrbrdo** » Mon Jan 22, 2007 3:15 pm

It could be a problem with MinGW (or Code::Blocks in general too) and Irrlicht, because like Luke i have no problems with any other games using DX 9.0c. You guys might want to look into this.
Like i said i REALLY doubt there is a problem with my system hardware-wise, because i have no such problems in any games\apps that utilize DX9.0c. My system is not overclocked in any way either.

hybrid · Post by **hybrid** » Mon Jan 22, 2007 4:18 pm

Does the terrain example binary work for you? And which library and conversion method do you use to get a working DX9 support for Irrlicht with mingw?

bitplane · Post by **bitplane** » Mon Jan 22, 2007 5:49 pm

Are you using a nvidia card and the latest drivers, and running in windowed mode?

there's some kind of wierd timing problem with nvidia's latest drivers-

http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=16507
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=16735

i haven't managed to work out why it happens though

mrbrdo · Post by **mrbrdo** » Mon Jan 22, 2007 6:03 pm

bitplan: yes to all. well, i'm not quite sure if i have the latest nvidia drivers. Btw i'm no expert but as far as i thought terrain wasn't particles.. The thread you linked talks about flickering only with particles. That's from dxdiag:
Main Driver: nvd3dum.dll
Version: 7.15.0010.9685 (English)
Date: 9.10.2006 21:55:00
WHQL Logo'd: Yes
DDI Version: 9Ex

i'm also using windows vista but i don't think it has much to do with anything because i don't experience any problems with other applications (eg games) that use DirectX, not even in windowed mode (tried with World of Warcraft for example).
btw pop in to irc already