Hi Wojtek, Ahh, good catch with the improper derivation! :) Thank you. I'm attaching the corrected st.h file.
I just tried to get the osgShadow example working (-4 --lispsm), and it didn't work with any of the workarounds that I'd used in my code (not using variables to index light sources, don't use derived light values such as gl_FrontLightModelProduct, skip empty program add, etc). Now the standard LispSM does its lighting in the vertex shader, and all of my Programs do their lighting in the fragment programs... so there may be additional tricks for vert shaders that I'm not yet aware of? I haven't tried any of the other techniques yet, but perhaps I'll see if those can be patched up. But... even if we could patch them, the fixes are ugly enough that I don't think they'd belong in the osg source. Perhaps I should post some of these issues on the ATI forums. Thank you! Baker ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30533#30533 Attachments: http://forum.openscenegraph.org//files/st_191.h _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
