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  1. JDK
  2. JDK-4628398

REGRESSION: Jerky performance of 3d apps

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P4 P4
    • None
    • 1.4.0
    • client-libs
    • 2d
    • x86
    • windows_2000



      Name: gm110360 Date: 01/24/2002


      FULL PRODUCT VERSION :
      Java 2 SDK v 1.4beta3

      FULL OPERATING SYSTEM VERSION :Microsoft Windows 2000
      [Version 5.00.2195]



      EXTRA RELEVANT SYSTEM CONFIGURATION :
      dual CPU Celeron 450, 256MB, Epox KP6-BS

      A DESCRIPTION OF THE PROBLEM :
      When viewing even the simplest Java 3D apps (i.e. a
      rotating cube), the animation hiccups badly. For an even
      more dramatic demonstartion of the problem see
      http://www.webreference.com/3d/lesson75/. The problem does
      not occur when using the Microsoft JVM.

      Setting the Java heap size to 64Mbytes does not help at
      all. Nor is using the -server version. This is a grave
      problem and makes Java all but unusable for 3d apps.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1. Just visit http://www.webreference.com/3d/lesson75/ or
      run any of the Java3D animated demos.
      2.
      3.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      Given all the hype and claim about Hotspot and the fact
      that the problem is completely absent from the MS JVM
      (which is not hyped at all) even more complex 3D Animation
      should be completely smooth with no hiccups in-between.

      This bug can be reproduced always.

      Release Regression From : 1.3.1_02
      The above release value was the last known release where this
      bug was knwon to work. Since then there has been a regression.

      (Review ID: 137767)
      ======================================================================

            chaasesunw Chet Haase (Inactive)
            gmanwanisunw Girish Manwani (Inactive)
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