Christian,
Just construct and treat an OrientedShape3D like you would any other
Shape3D. You can use a TransformGroup to place it anywhere in your
scene that you want. Then as you move your view around the
OrientedShape3D will automatically rotate to always face your view.
- John Wright
Starfire Research
Christian Bartel wrote:
>
> Hi!
>
> Could you be so kind and help me out with a peace of code? I have found the
> orientedShape3D in the API-doc, but I am not quite sure about how to use it.
> What point have I do give the contructor to make it be oriented to the
> camera? I am far to new to Java3D...
>
> I ordered myself a book about all that but this will take I while until it
> will reach here...
>
> Thanks a lot!
>
> Christian
>
> > -----Original Message-----
> > From: John Wright [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, June 21, 2001 7:19 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [JAVA3D] Solar coronas (was: [JAVA3D] Background
> > Geometry)
> >
> >
> > 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".
> >
>
> ===========================================================================
> 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".
