Hi Vijay,

On Wed, 15 May 2002, Vijayaraghavan Rajagopal wrote:

> I know I have asked this question before. I would like to use 2D textures to come up 
>with a 3D image of the brain. I have gone through a number of websites and papers on 
>this subject-Ray Casting and the splatting algorithms in particular. But all of them 
>give me a description of the algorithm. I am not able to see how I can implement it 
>in Java 3D. Can someone give me a general idea how to implement ray casting? Is it 
>somewhere along the lines of using the lighting feature in Java 3D as the ray along 
>which to estimate intensities?
>
> Thanks
> Vijay Rajagopal

VisAD will do this for you, displaying your data as a transparent volume
using Java3D textures. See Section 4.11 of Ugo Taddei's VisAD Tutorial
for a description, available at:

  http://www.geogr.uni-jena.de/~p6taug/visad/tutorial/s4/Section4.html#section4_11

VisAD is freely available, including source code, from:

  http://www.ssec.wisc.edu/~billh/visad.html

Good luck,
Bill Hibbard

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