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.
> > >
> > >
> > >
> > > _________________________________________________________
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> > > Get your free @yahoo.com address at http://mail.yahoo.com
> > >
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