| Re: Transparency of Polygon Objects [message #17944] |
Fri, 19 November 1999 00:00 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Stuart Campbell (S.I.Campbell@rl.ac.uk) writes:
> I am trying to vary the transparency of isosurfaces that I have drawn using
> IDLgrPolygon objects....Does anyone know of an easy way to do this ?
An "easy way"!? Oh, my gosh. Would you settle for an "all
but impossible" way?
I don't know off hand. I'll look around a bit and see
what I can do. But I've got to get some work done around
here first. :-(
Cheers,
David
P.S. I *think*, but I don't actually know for sure,
that the way to do this (assuming you are not putting
an image on top of this with some kind of texture map)
is to add a stipple pattern to the polygon object.
Depending upon the "tightness" of the stipple pattern,
you can more or less see through the object.
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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