Hey
folks,
I was wondering if
any laptop users out there have experienced strange hardware acceleration
behavior when upgrading Java / Java 3D. Let me explain:
I have a
Dell laptop which uses the popular ATI RAGE MOBILITY graphics chip. This
chip can provide OpenGL hardware acceleration at 1024x768 under Windows
2000.
- There was a known
bug with Java 3D 1.2 where hardware-accelerated OpenGL was not available through
Java 3D using *some* graphics cards under Windows 2000. However, Java 3D
1.2 OpenGL happened to be hardware-accelerated for this
laptop.
- Java 3D 1.2.1
fixed that bug. However, when this laptop was upgraded to Java 3D 1.2.1,
hardware acceleration was no longer available, *contrary* to the bug being
fixed. (I don't know why.)
- The laptop's Java
VM has since been upgraded from Java 1.3.0_01 to Java 1.3.1, and that seems to
have restored hardware acceleration under Java 3D 1.2.1. I was not aware
that the Java VM could affect OpenGL hardware acceleration.
Has anyone had a
similar experience with an ATI RAGE MOBILITY-based laptop? Is there an
explanation for this? Thanks for any info.
-
Mauricio
