I don’t know how can I modulate two textures on a quad ??? like a calque
thx 
Go to www.opengl.org and search in the message forum for multi-texture and multi-pass rendering. You should find lots of discussion.----- Original Message -----
From: IronRaph at aol.com
To: sdl at libsdl.org
Sent: Tuesday, April 16, 2002 8:29 AM
Subject: [SDL] open gl calques
I don’t know how can I modulate two textures on a quad ??? like a calque
thx
thx so it is a multi-texturing system 
Not really, but you can use multi-texturing ao achieve it in one render pass. Basically, you can multi-texture your quad or you can render it once, turn on blending and then render it again with your 2nd material (color(s) or texture).----- Original Message -----
From: IronRaph at aol.com
To: sdl at libsdl.org
Sent: Tuesday, April 16, 2002 9:15 AM
Subject: Re: [SDL] open gl calques
thx so it is a multi-texturing system
it will be to slow it because it is to do snow effect and the mountain is big