Hi Mark, JP,
I think easiest would be to render to 3 luminance textures and then combine in another step into rgb.
Why not render 3 passes into the same RGB texture but just write to one channel per pass using color masking? You'd save the combine pass.
J-S -- ______________________________________________________ Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.dyndns-web.com/ _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org