From: Praveen Bhaniramka (praveenb++at++gauri.engr.sgi.com)
Date: 04/24/2002 11:01:34
Hi Daniel,
Performer 2.5 comes with sample source code to do volume rendering using
OpenGL Volumizer. This is part of the source for the pfVolume node which
directly loads in 3D tiff files. The updated source code for pfVolume can
be obtained with Volumizer 2.2 which would allow you to apply transfer
functions to the volume rendered data.
You can either convert 2D tiff images into a single 3D tiff file using a
utility provided with Volumizer to load the data into pfVolume (see
/usr/share/Volumizer2/src/util/tiff/iflto3Dtiff), or modify the pfVolume
code to directly load a set of 2D images (see
/usr/share/Volumizer2/src/apps/Performer/2.5/)
VTK provides volume rendering using software ray casting and 2D texture
mapping. There is also a VTK wapper class which uses Volumizer to do 3D
texture based volume rendering (/usr/share/Volumizer2/src/apps/VTK/).
Cheers,
Praveen
On Wed, 24 Apr 2002, Daniel Djurvall wrote:
> Hey folks!
> I have a pack of 2d images(x,y) in tif format that is taken on a sample in
> different depth(z). Now I would like to do a volumerendering to be able to
> see how the objects look in 3D in a cave via PERFORMER/CAVELIB.
> Are there any EXAMPLE of how to do this. Is it a good approach to do this
> in Volumizer? Is VTK a better alternative?
>
> Thanks,
> Daniel
>
>
>
-- ----------------------------------------------------------------- Praveen Bhaniramka Member of Technical Staff (MTS) praveenb++at++sgi.com Advanced Graphics Division (650)933-1785 Silicon Graphics, Inc. -----------------------------------------------------------------
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