Hi Judie, When you enable tex gen, the texture coordinates are generated down on the GPU for each vertex that is processed, so it's not a state that you need to update at all. It'd best to grab an OpenGL book, or looks at online docs to get a full understanding of tex gen. The OSG just wraps up what OpenGL provides, so the OpenGL reference material will go a long way to helping you understand how tex gen is done in OSG.
Robert. On Fri, Jul 11, 2008 at 6:57 PM, Judie <[EMAIL PROTECTED]> wrote: > Hi, > > I am applying sphere mapping and using GL_TEXTURE_GEN_S & T so that > osg will generate the texture coordinates automatically. My question > is: if the object is changed by something like a boolean operation, do > I need to do anything or will the texture coordinates be regenerated > correctly because it is set to generate texture coordinates > automatically through: > state->setTextureMode(texUnit, GL_TEXTURE_GEN_S, > osg::StateAttribute::ON); > > Thanks, > > Judie > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
