>Date: Tue, 12 Mar 2002 17:49:42 -0800 >From: "Innes, Erik" <[EMAIL PROTECTED]> >Subject: Re: [JAVA3D] Seemingly random performance degradation. >To: [EMAIL PROTECTED] >MIME-version: 1.0 >Delivered-to: [EMAIL PROTECTED] >Comments: To: Kelvin Chung <[EMAIL PROTECTED]> > >I'm actually using a Thinkpad T21 laptop - 512mb memory, Savage graphics >card - 8mb. >I updated the driver for the card to the latest (7.40.44 dated 10/01) >Didn't help.
So have you try all three display modes (16/24/32 bit) and none of them support hardware accelerated mode under DirectX 8.0 API ? >Downloaded and installed the OpenGL version of Java 3D 1.3beta >Performance was really bad, and no messages. For laptop legacy graphics card most are optimize for DirectX API. So OpenGL library will run in emulation mode. >Downloaded and installed the DirectX version of Java 3D 1.2.1_04. >Performance seems to be consistantly good as it was before installing Java >1.4. > >I do get one message box when the Canvas3D instantiates: > > "Fail to create 3D Device -887602ea" > >I hit OK, and things work. It's a nuisance, but doesn't seem to impact >anything. > This happen when CreateDevice() API fail for some reason. The error message is fixed in v1.3 beta1. It is possible that when Java3D try to create it the second time the legacy savage driver let pass. Looks like this driver only works well for DirectX 7.0 API which Java3D v1.2.1_04 used. - Kelvin --------------- Java 3D Team Sun Microsystems Inc. =========================================================================== 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".
