From: Daniel Selman [[EMAIL PROTECTED]] Sent: 27 August 1999 01:05 To: Java3D Subject: Sound Problems Sorry about the length of this email - I tried to keep it short! I've been working on the chapter of my Java 3D book on Sound and have run into a few issues I wonder if anyone could clarify. The Sound.setReleaseEnable function does not appear to do anything in my tests. In my tests I have a behavior that calls setEnable( true ) on collision enter and setEnable( false ) on collision exit. Because enter and exit happen very rapidly the sound never gets played. I guess this will depend on how often the Sound scheduler thread interrogates this flag - is the flag cached between iterations through sound nodes or does the flag just have to happen to be set when the scheduler reaches the node? I don't know how to reliably fix this without resorting to some kind of elapsed time criteria hack. The Sound.setPriority does not appear to be honored. As soon as a Sound is enabled using setEnable it appears to interrupt a higher priority sound. If createAudioDevice is not called *before* addBranchGraph is called sounds will not be enabled. This is a real GOTCHA and took me a long time to find. It should be documented at least. Sound artifacts, usually pitch shifting, are occasionally present. I think this was mentioned in the release notes. How do I change the position of the "listener" in the scene. In my example application I have positioned the camera at 0,1,0 and moved the scene backwards in the Z-direction. However, I have an avatar that corresponds to the "viewer" at 0,0,-5. I would like all sound calculations to be relative to the avatar's position, not the camera position. Is this possible? I have created 10 PointSound nodes and a BackgroundSound node, but I cannot get the BackgroundSound node to play. Are BackgroundSound nodes scheduled differently to PointSounds, irrespective of priority? Thanks, Daniel Selman [EMAIL PROTECTED] http://www.tornadolabs.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".
