What I'm hoping for is that I'll be able to extend java3d in such a way so that
I could create a new 'primitive' - a sphere, mathematically correct. I want to
model a spherical mirror, and it would be completely obvious if it was just a
triangle mesh, no matter how dense. I wish I had the time to immerse myself in
j3d to see if what I want to do is possible, so I'm hoping someone here can
tell me one way or another if non-linear geometric shapes can be modelled with
it.
Terren
--- The Casteels <[EMAIL PROTECTED]> wrote:
> I have attempted to use Java3d to evaluate volumetric data which has some of
> the same problems you're running into. What I ended up doing was creating an
> IsoSurface from the volumetric data, by using the marching cubes algorithm
>
> The result is a triangle surface mesh. The density of the mesh is dependent
> on
> how fine the cube mesh was.
>
> I know this isn't what you want, but it gives you an idea of what you're up
> against. You'd have to do something similar by evaluating each ray into
> recursively smaller and smaller pieces as you get closer to the threshold.
> Once
> you reach the threshold you'd have to generate a cube around the point to
> establish the surface appearance, shading, normal ect.... then you can
> establish the pixel color and plot it onto a 2D Canvas.
>
> A daunting task....
>
> In short, although I'm sure it could be done, this isn't what Java3D is
> really
> meant for. Java3D is designed to generate VR type worlds, interactive, going
> beyond VRML to give the programer tons more control and functionality, but
> still it is an interactive environment sacrificing realistic appearance for
> interactivity.
>
> Another note, the above mentioned volumetric viewer was slow as a dog.
>
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
