Last comment first.
On Jun 30, 2011, at 1:10 AM, Robert Hanson wrote:
> By the way, you asked about the possibility of duplicating an isosurface so
> there was a translucent "shadow." Since rendering is a two-pass system, a
> better way...
>
> ... to do that might be to set a flag to render the translucent pass without
> slab and the opaque one with. Something on that order would be way preferable
> to creating a whole new object just for that.
>
That might be good. It certainly would help with memory. The only issue I
see with this option is need for another separate control of the ghost
rendering (mostly I think mesh versus fill and level of transparency). What
people have been doing is rendering two surfaces one opaque and slabbed and
then a ghost unslabbed. In playing around with orbitals and cavities where you
may want to see the inside surfaces of the slice through the ghost, I've found
that the ghost settings that seems to work best are a transparecy of ~200 and
mesh nofill. However, most of the SageMath people have been using filled. The
math people also have a tendency to use a different color for the ghost. I'm
partial to the same surface color rendering/mapping as the slabbed region.
Dr. Jonathan H. Gutow
Chemistry Department gu...@uwosh.edu
UW-Oshkosh Office: 920-424-1326
800 Algoma Boulevard FAX:920-424-2042
Oshkosh, WI 54901
http://www.uwosh.edu/facstaff/gutow
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