Hello Friends, Here is my configuration:
P3 600 Mhz 512 MB RAM 32MB NVidia Geforce2 MX (21.83 Drivers) Windows 2000 SP2 JDK 1.4 b3 Java3D 1.3 b1 (OpenGL) I'm writing a program that is an attempt at creating a 'flame' that will thrust out of the back of a spaceship. At achieve this, I'm cycling through objects in the back of the ship. For each frame, I'm going through 100 or so objects and updating the both the transparency and the emissive color levels of each. This works OK, however, the calls to update these properties are creating objects within the Java3D implementation...and this is causing significant, frequent garbage collection. I believe this is true because whenever I comment out only the lines that do the updating, the garbage collecting stops, almost completely. The problem calls seem to be: javax.media.j3d.TransparencyAttributes.setTransparency(float transp) and javax.media.j3d.Material.setEmissiveColor(float r, float g, float b) It should be noted that these objects are already associated with an Appearance object, which is already set on a Shape3D. The only thing I'm doing is updating them...not creating new ones. I was told this was going to be fixed in Java3D 1.3, but it appears that the problem remains, as before. I would bet that if these routines were optmized a bit these object allocations within Java3D could be eliminated completely and the efficienty greatly increased. Oh, one more thing. The installer for 1.3b1 is broken. I tried it using JDK 1.3, JDk 1.4, NT, 2000...failed all tries (could not find a suitable VM). Anyway, everything else seems to be working fine...I really like the full screen mode!!! Michael P. McCutcheon =========================================================================== 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".
