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Strange effect on terrain rendering

by Luis Anton · in Torque Game Engine · 10/14/2003 (1:29 pm) · 5 replies

I'm getting strange effects when renderin plain terrain. They look like grey squared areas with saw borders. However, they are not always there... Depending on where you are looking at, they appear and dissapear. I'm using a quite strange ATI RADEON IGP 345 for laptops, which I'm sure is part of the problem. Any clue?
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Torque Owner Mark Harmon
#1
10/14/2003 (2:08 pm)
Try turning off the bump mapping and see if you still have a problem.

Torque Owner Luis Anton
#2
10/14/2003 (3:49 pm)
BINGO

That ATI doesn't have bump mapping, but on my Desktop I have a GeForce2 MMX which hasn't got it neither and I don't have that problem... curious

I turned off the bump mapping by commenting a few lines in the mission file:
bumpTexture
squareSize
bumpScale
bumpOffset
zeroBumpScale

Is there an 'easier' way? (something like bumpMapping=OFF that I have missed?)

Thanks a lot :)

Torque Owner Chris \"Hobbiticus\" Weiland
#3
10/14/2003 (5:59 pm)
There's a pref. $pref::Terrain::enableEmbossBumps.

Man...that code has had more trouble than anything with ATi drivers...

Torque Owner Nicolas Quijano
#4
10/15/2003 (10:58 am)
Actually Chris, your code doesn't have a problem with ATi drivers per se, it works fine on my PC with 9500 Pro, but does the gray triangles overlay dance on the ibook with a Radeon M6 (ie the mobility 7000)
It doesn't do it on our artist's PC with 9700 Pro, or my boss' dual G4 with 9800 Pro
I think the problem is some particular type of ATi chips, and their drivers' interaction with your code

Torque Owner Chris \"Hobbiticus\" Weiland
#5
10/17/2003 (8:44 am)
Yeah, the ATi mobility cards/drivers have THE most trouble drawing things correctly. Probably the best thing I can tell you is just disable it on your laptop. If that code still misrenders, then there's not much left to do.