Re: [Plib-users] plib and shadows

[<Rol...@t-...>]

some additional notes after trying several things :

On Thursday 13 June 2002 13:07, I wrote:
> Hello,
>
> I'm still trying to get shadows.
That's still true ;-)

> I tried two ways :
> - use a glMultMatrixf((GLfloat *) floorShadow) in the callback function,
> where floorShadow is the projection matrix
> - use a setTransform(floorshadow) before calling ssgCullAndFace
>
> Both don't show a projection, the second shows parts of the scene at a
> different place.
> My guess is the first is superseded by ssg functions and the second is a
> transformation but not a projection. Could that be ?
No. The second way should work, there was a problem in the matrix.
Meanwhile I get a second copy of the scene rendered and I can transform it 
however I like. So far so good. Now I try to switch off texturing (works), 
lighting (works) and replace all colors to a half transparent black. For the 
latter I added two lines to my callback function :
glMaterialfv(GL_FRONT,GL_DIFFUSE,shadowColor);
glColor4f(0.0, 0.0, 0.0, 0.5);
but both seem to be ignored/overwritten.

I think I'm almost there, only this last step is missing.

Any hints ?

Thanks,
Rolf
-- 
Rolf Jakob at home (rj...@du...)
WWW : http://www.franken.de/users/duffy1/rjakob (KDE-Utils and CCS)