Paul Martz wrote: > > When I use depth map shadows, I use a fragment shader to sample the depth > texture. If I wanted to see only the shadow areas but not the lit areas, I'd > just add the appropriate conditional call to "discard". >
Thanks Paul, your suggestion is very helpful, anyway I wonder if there exists also a way to achieve the same result without relying on shaders...for example, in the past I used the ColorMask to create an 'invisible' object that was able to hide other objects (its shape and volume was reveiled if other objects moved behind it, even though it was not visible in the scene). You can also pick such kind of invisible objects, so, maybe, something similar can be done also with shadows. Basically I'm looking for a way to reveil the shape/volume of an invisible object by means of shadows casted onto it, I know that this may make no sense from a physical point of view, but we're in the CG world where only imagination is the limit, aren't we? Cheers. Alessandro ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=41897#41897 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
