The "Canvas3D constructed with a null GraphicsConfiguration" is a common "error" that many tolerate as not an issue. It occurs when you create your Canvas3D using: new Canvas3D();
If you use: GraphicsDevice dev = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice(); GraphicsConfigTemplate3D template = new GraphicsConfigTemplate3D(); GraphicsConfiguration config = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getBestConfiguration(template); canvas3d = new Canvas3D(config); you shouldn't have this issue. (this has nothing to do with Linux) - John Wright Starfire Research cs wrote: > Hi,all. My system is linux(redhat 9), j2sdk1.4.2_05, > java3d-1_3_2-linux-i586, and Video card is NVIDIA GeForece 2 GTS > (generic). when I run any simple j3d application or applet(demo in > java3d), it gives me the error message as following: > ************************************************************************ > *** ERROR: Canvas3D constructed with a null GraphicsConfiguration > *** This will cause a NullPointerException in a subsequent release > ************************************************************************ > java.lang.NullPointerException: Canvas3D: null GraphicsConfiguration > at javax.media.j3d.Canvas3D.<init>(Unknown Source) at > javax.media.j3d.Canvas3D.<init>(Unknown Source) at > MyBoxTest1.init(MyBoxTest1.java:45) at > com.sun.j3d.utils.applet.MainFrame.run(Unknown Source) at > java.lang.Thread.run(Thread.java:534) > > The same java3d application or applet can run in Windows system. And > java applet can run in linux system. I find that the color of the > checking box "3D Accelerate" is gray in the display information of my > linux system, and I cannot check it. I change to another card(ATI > Radeon 9000) and it comes to the same wrong message. So that wrong is > related to this? That means i should install the new driver for the > NVIDIA card? I'm a newbie in linux. anyone met this case? > > Thanks, > > Martin > > > =========================================================================== > 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".
