Dave,

It would be nice if you can send me the C code and the example app. Please,
do tell us when the porting to Java is done.

Thanks,
nitin

> -----Original Message-----
> From: David Yazel [mailto:[EMAIL PROTECTED]]
> Sent: Friday, June 28, 2002 1:05 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [JAVA3D] depth sorting
>
>
> John Ratcliff has published an algorithm called sphere trees
> which would be
> perfect for you.  I have started porting his C code into
> Java.  We will be
> using it for particles and weeds and other things where we have many
> thousands of objects which we need to render differently on
> every frame.  I
> don't have the port done yet, and it may be a few weeks until
> I finish it,
> but if you want I can send you the C source and the example app which
> demonstrates how it can be used.
>
> Dave Yazel
>
> ----- Original Message -----
> From: "Lan Wu-Cavener" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, June 27, 2002 2:15 PM
> Subject: Re: [JAVA3D] depth sorting
>
>
> Thanks, Nitin,
>
>  From what I read, the only way to do the depth sorting is to
> use BSP or
> this sort octree . I have not started to implement it yet.
> I also hoping there is some easier way.
>
> cheers!
>
> At 09:44 PM 6/27/2002 +0530, you wrote:
> >Lan,
> >
> >No I didn't get any response to this query...probably it is
> something which
> >is very-very simple or the other way round :)
> >No I'm not doing any occlusion culing, I'm using immediate mode of
> rendering
> >because the number of geometries are huge in my view. The geometry is
> mainly
> >consisting spheres so I'll display a point for the farther
> component rather
> >than a sphere .
> >
> >regards,
> >nitin
> >
> > > -----Original Message-----
> > > From: Lan Wu-Cavener [mailto:[EMAIL PROTECTED]]
> > > Sent: Thursday, June 27, 2002 8:24 PM
> > > To: Nitin.Jain
> > > Subject: Re: [JAVA3D] depth sorting
> > >
> > >
> > > Nittin,
> > >
> > > Have you got any responses directly to you?
> > > I am also interested in the answer to this question.  Are
> you doing
> > > occlusion culling?
> > >
> > >
> > > At 01:40 PM 6/17/2002 +0530, you wrote:
> > > >Hi,
> > > >
> > > >I have thousands of geometries in my view and I know the
> > > center points, I
> > > >want to depth sort all of these. Can somebody suggest me
> > > what is the best
> > > >way to this. I also have the rotation behaviour so I have to
> > > do it at each
> > > >rotation of the model I carry out. Should I apply the
> > > rotation on all the
> > > >points and then calculate the distance of each point from
> > > the view point. Or
> > > >is there any readymade way available in Java3D to do this.
> > > >
> > > >Regards,
> > > >Nitin
> > > >
> > > >-------------------------------------------------------------
> > > ---------------
> > > >------------------------
> > > >AS FAR AS THE LAWS OF MATHEMATICS REFER TO REALITY, THEY ARE
> > > NOT CERTAIN;
> > > >AND AS FAR AS THEY ARE CERTAIN, THEY DO NOT REFER TO
> > > REALITY. -- Albert
> > > >Einstein
> > > >
> > > >=============================================================
> > > ==============
> > > >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".
> > >
> > > Lan Wu-Cavener
> > > Dept. of Landscape Architecture
> > >
> >
> >=============================================================
> ==============
> >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".
>
> Lan Wu-Cavener
> Dept. of Landscape Architecture
>
> ==============================================================
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> ==============================================================
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