Right... use OrientedShape3D, should work ok for what you want. What is
broken for us is a single OrientedShape3D put in a shared group to make
multiple objects always face the viewer... Sun has a bug for this...
doesn't work.
- John Wright
Starfire Research
Jean Laleuf wrote:
>
> Ah, sorry.
> Use an OrientedShape3D.
> One caveat: I seem to remember mentions of problems w/ OrientedShape3D
> objects somewhere in the list archives. You might want to check that out. If
> it does turn out to be a problem, you can also look at the Billboard
> behavior class, which I think I've used successfully (don't have my code in
> front of me right now).
>
> For the transparency, make sure your texture includes an alpha component and
> that you set the TextureAttributes (and maybe the TransparencyAttributes)
> correctly. Again, there was a good post a while back on how to do that, so
> you should probably search the archives.
>
> good luck,
> -jrl
>
> -----Original Message-----
> From: Discussion list for Java 3D API
> [mailto:[EMAIL PROTECTED]]On Behalf Of Christian Bartel
> Sent: Thursday, June 21, 2001 1:07 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [JAVA3D] Solar coronas (was: [JAVA3D] Background Geometry)
>
> Hi Jean!
>
> I had this idea (see my posting before). My Problem was: How to make it
> always face the camera (remember, I am a NEWBY :-)))
>
> Thanks
>
> Christian
>
> > -----Original Message-----
> > From: Jean Laleuf [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, June 21, 2001 6:55 PM
> > To: [EMAIL PROTECTED]
> > Subject: [JAVA3D] Solar coronas (was: [JAVA3D] Background Geometry)
> >
> >
> > You might be able to hack this effect:
> > Make a quad that's always oriented towards the camera. Give
> > it a texture
> > that looks like the corona effect you're after (make sure
> > it's transparency
> > around the edges of the corona). Scale the quad so the corona
> > matches up
> > well with the geometry of the star/sun. Make sure the center
> > of the quad (ie
> > the rotation point) is lined up w/ the center of the star/sun
> > sphere. That
> > way, it should always look like the corona surrounds the sphere.
> > Let me know if this works.
> >
> > -Jean Laleuf
> > [EMAIL PROTECTED]
> >
> > ps. you could maybe even do some cooler effects with this
> > method such as
> > solar flares, etc. Could be a lot of fun.
> >
> > -----Original Message-----
> > From: Discussion list for Java 3D API
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Corysia Taware
> > Sent: Thursday, June 21, 2001 12:37 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [JAVA3D] Background Geometry
> >
> >
> > ----- Original Message -----
> > From: "Christian Bartel" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Thursday, June 21, 2001 10:00 AM
> > Subject: Re: [JAVA3D] Background Geometry
> >
> >
> > > But, if I travel to a star in Celestia, this star is
> > glooming a little
> > bit.
> > > If I were able to make my sun look somehow like that, I had the
> > possibility
> > > to make my little scene look rather perfect. Do you know a
> > way (in Java3D)
> > > to make this? *please* :-)))
> > >
> >
> > I'm sorry, no I don't. I haven't tried to figure that out
> > yet. It looks
> > like the corona is done with some sort of lens flare
> > algorithm, but I don't
> > have any experience with simulating that yet.
> >
> >
> >
> > _________________________________________________________
> > Do You Yahoo!?
> > Get your free @yahoo.com address at http://mail.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".
> >
> > ==============================================================
> > =============
> > 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".
> >
>
> ===========================================================================
> 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".
>
> ===========================================================================
> 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".
===========================================================================
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".
