Hello, I try "projective texturing" and I didn't use the TexGen. Also I use a shader. And in the vertex shader I do this:
gl_TexCoord[1] = ( projMat * viewMat * gl_Vertex ); gl_TexCoord[1].s = gl_TexCoord[1].s / gl_TexCoord[1].q / 2 + 0.5; gl_TexCoord[1].t = gl_TexCoord[1].t / gl_TexCoord[1].q / 2 + 0.5; The projMat is the projection matrix of my "projector" and the viewMat is the transformation in the coordinate system of the projector. In my test scene I have a plane with a width and height of 10 and the center is in (0,0,0). And I have the projector in (0,0,2) with the up vector (0,1,0) and the target point (0,0,0). It looks fine, but when I rotate the projector, the result is irreproducible. I think the problem is the s/q and t/q. Have everyone a idea? What is my mistake? Cheers, Martin _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
