| Re: FLOAT images instead of BYTE ones from IDL Object graphics ? [message #64832 is a reply to message #64824] |
Fri, 23 January 2009 09:07   |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Gianluca Li Causi writes:
> So, what can I do to automatically get a 0 to 255 full-range display
> of my volumes where I can look through all the volume data?
>
> As you see I'm still a newcomer in volume rendering...
Yes, well, I'm at least one page ahead of you. :-)
I don't know if you can "automatically" do much of anything
useful in IDL. I presume, though, that you could modify
the color of the volume, use lights, and change the composite
function to modify the values your surface is rendered in.
You are probably NOT going to find the information you need
to do this convincingly in the IDL documentation. I think you
are going to have to get a good OpenGL book and see how all
of this works. Then you will have to make assumptions, half
of them wrong, about how IDL implemented OpenGL properties.
In the end, you will have spent an enormous amount of time
and you may be a bit wiser. (Although I wouldn't risk too
much money betting on this.) In other words, you are going
to have to learn object graphics just like the rest of us. :-)
Cheers,
David
P.S. It might help to get Rick Towler season tickets to the
Seattle Seahawk's games, but you will have to discuss this
with him privately. :-)
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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