J-S wrote: > > I (and probably Robert too) thought you wanted to change the value of a > Uniform in mid-traversal... >
While it is true that one cannot affect the values of uniforms during a rendering pass in the default OSG implementation, there is nothing preventing one from changing the values of uniforms while rendering out any single geometry object in general. It's just that in OSG, one would require a custom drawImplementation (and explicitly bind/apply the uniform as well as set it). Now, you can't change a uniform during a single OpenGL "traversal", of course (i.e., between glBegin() and glEnd()), but there is nothing stopping you from changing a uniform at any other time. If a single "object" is broken into several glBegin()/glEnd() sections for a given rendering pass, it is perfectly acceptable to change the value of a uniform in between each individual section. ------------------------ Matthew W Fuesz Software Engineer Asc Lockheed Martin STS ------------------ Read this topic online here: http://osgforum.tevs.eu/viewtopic.php?p=4909#4909 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
