[info-performer] scrolling textures

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From: brad schwagler (bschwagg++at++yahoo.com)
Date: 06/07/2002 08:54:47

hi,
This is my idea which I'm not succeding to implement:
I'm trying to create rain/snow effect in a driving
simulation by having billboards, texture mapped with
rain or snow, around the camera view. To create the
effect of the rain coming down I wanted to scroll the
texture-maps down, using a draw cullback. This would
be a lot more efficent than using DCS's for each
rain/snow plane.
using openGL it can be accomplished by:

int pfdPreDrawRain(pfTraverser *a, void *d){
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glRotatef(x,1,0,0);
x += 0.1;
return PFTRAV_CONT;
}

This doesn't work with performer, how do I go about
doing this? Flux's? Can anyone point me in some
direction or have some example code?
Thanks!
-brad

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