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Re: NVidia Quadro4 980 XGL card + IDL [message #47335 is a reply to message #47263]

Thu, 02 February 2006 11:16

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

raval.chintan wrote:
> Dear All,
>
> I am using NVidia Quadro 4 980 XGL. One can visualize stereo images
> using Quad Buffer , available on this card. Proper interface
> (functions) for rendering images using this buffer are given in
> OpenGL.. Quad Buffer includes Left and Right Buffer ,which will be
> rendered one by one.For Visulization of images one needs, shutter
> glasses with infrared emitter to be connected with graphics card.
>
> Will it be possible to render an image with use of this buffer on IDL
> Draw widget? or in other way ,Will it be possible call this
> interface(functions) of OpenGL through IDL?

No, and Yes. IDL's openGL implementation is fairly generic and doesn't
support many (any?) vendor specific extensions like the quadro's
quad-buffer stereo API. So you can't do this in IDL. But, there are
ways to do this from within a DLM. I just don't know if I would want to
do it :)

You would be better off learning how to control the shutter glasses from
within IDL (hack them to run off of the serial port?) and then modify
IDL's IDLgrView/IDLgrModel parameters to render the left and right eye
views as you run your glasses. My camera object makes rendering the
left and right eye views easy. It also has the added bonus of allowing
you to easily manipulate your model as you view it.

http://www.acoustics.washington.edu/~towler/RHTgrCamera.html

I've played around with this using multiple monitors, Saran wrap
( http://www.sas.org/E-Bulletin/2003-06-20/labNotesAS/body.htm l) and
polarized glasses. I have also used multiple projectors with polarizing
lenses. It can be tricky setting up the views/monitors/viewer so you
get a "natural" 3d effect but it can be done.

Dick Jackson has worked with this as well and has been quite successful.
He could probably give you more tips on setting up views if you
decided to go this route.

> In IDL help i found that IDL uses two type of rendering 1) Hardware
> (OpenGL) 2) Software.
> I also found the difference between hardware and software rendering in
> IDL.

*The* difference? There is only one? ;)

-Rick

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[Message index]

		NVidia Quadro4 980 XGL card + IDL By: raval.chintan on Thu, 02 February 2006 00:01
		Re: NVidia Quadro4 980 XGL card + IDL By: Rick Towler on Fri, 03 February 2006 11:00
		Re: NVidia Quadro4 980 XGL card + IDL By: Karl Schultz on Fri, 03 February 2006 09:06
		Re: NVidia Quadro4 980 XGL card + IDL By: raval.chintan on Wed, 08 February 2006 22:26
		Re: NVidia Quadro4 980 XGL card + IDL By: Dick Jackson on Thu, 02 February 2006 13:40
		Re: NVidia Quadro4 980 XGL card + IDL By: Rick Towler on Thu, 02 February 2006 11:16
		Re: NVidia Quadro4 980 XGL card + IDL By: Rick Towler on Thu, 09 February 2006 10:52
		Re: NVidia Quadro4 980 XGL card + IDL By: raval.chintan on Tue, 14 February 2006 03:50
		Re: NVidia Quadro4 980 XGL card + IDL By: Karl Schultz on Thu, 09 February 2006 08:05

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