Hi Tom, > I'm attempting to render points as spheres. But i'm having problems w/ > rendering in POLYGON_FILL mode w/i visad. My intention is to have multiple > solid, shaded spheres displayed of consistent size, but I get spotty fill > with inconsistent size... Since a picture is worth a thousand words i'll > put links to pictures which best describe my situation. The second pic. is > of the first zoomed into a sphere (which includes a shaded come...???) What > am I missing? My best guess is that there is some problem with your normals, or even errors in your geometry. The attached jar file includes a Python program dna.py and a data file dna_molecule.txt read by the program. This program draws atoms as octahedra (poor man's spheres) with no problem. Also, VisAD draws vary complex shapes including spehres as iso-surfaces without problem. Good luck, Bill
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dna.jar
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