Re: [openvrml-develop] determining AudioClip node child of Sound node

[-oli- <ol...@fr...>]

At 00:44 25.04.2002 -0400, you wrote:
>On Sun, 2002-04-21 at 10:03, -oli- wrote:
> > How can I find out from within the class NodeAudioClip if the AudioClip
> > node is [currently] child (i.e. source) of a Sound node?
>
>You can't really do that.
>
> > I need this to determine if the audio data has to be played or not, 
> because
> > this check is done in the method NodeAudioClip::update().
>
>Perhaps this logic belongs in Sound rather than AudioClip.

But the determination if the clip is playing takes place in 
NodeAudioClip::update(), _not_ in any method of the class NodeSound, what 
makes sense, because the update()-method is called periodically from 
VrmlScene::update() and the time dependance of the sound is in the 
AudioClip-Node (not in the Sound-Node).
If I do it from NodeSound::render(), it would be only updated if the 
scene/view changes, e.g. when the user navigates through the world.

>Remember, MovieTextures can be sound sources, too. As such, it seems like we'd
>want to reuse the same logic regardless of what our sound source is.

IMHO this has to take place in NodeMovieTexture::update().

         -oli-
         (Oliver Baum)