On 11/7/05, Dirk Reiners <[EMAIL PROTECTED]> wrote: > > Hi Terry, > > On Mon, 2005-11-07 at 14:00 -0600, Terry Welsh wrote: > > I have been flattening objects in a scene and finding that my bump > > mapping looks wrong. It turns out that using MergeGraphOp transforms > > all my normals, but it won't transform anything stored is secondary > > colors. I'm using secondary colors to store all my binormals, and > > using those in a shader that does my bump mapping. > > > > Is there any way to have MergeGraphOp affect secondary colors or > > texture coords the same way it affects normals? Or would this be an > > easy enough feature to add to OpenSG? > > Hm, that's non-trivial, because there is no way to find out whether a > texture coordinate is just a texture coordinate or a tangent/binormal. > Especially since it can change from object to object, I don't see a way > to automate that. You would have to pass it into the GraphOp as explicit > parameters.
That's what I was thinking too. > > You can extend the MergeGraphOp to affect specific texcoords if you want > to, but I'm currently not aware of anybody working on this. Any takers? I guess that would be me, since I'm the one who needs it. I'll let you know if I have trouble figuring it out :) -Terry > > Dirk > > > > > ------------------------------------------------------- > SF.Net email is sponsored by: > Tame your development challenges with Apache's Geronimo App Server. Download > it for free - -and be entered to win a 42" plasma tv or your very own > Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users > ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
