Qiuli:
This problem is fixed in 1.2.1 beta2. You could workaround the problem in one of 2
ways:
1. Disable compile - Disabling compile in 1.2.1 beta1 should still give you the
same performance as .compile() in 1.2 while allowing you to benefit from any bug
fixes in 1.2.1 beta1.
2. Rearrange geometry - This bug occurs if you use shapes with multiple geometry
and the first geometry is null. You could rearrange your geometry list in the
shape such that the first entry is non-null.
-Uma
Java3D Team
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> Date: Tue, 14 Nov 2000 14:05:51 -0800
> From: Qiuli Sun <[EMAIL PROTECTED]>
> Subject: Re: [JAVA3D] Exception with 1.2.1 beta 1 (OGL)
> To: [EMAIL PROTECTED]
>
> I got the same problem. So I removed the 1.2.1 beta.
> -----Original Message-----
> From: Discussion list for Java 3D API
> [mailto:[EMAIL PROTECTED]]On Behalf Of Rob Nugent
> Sent: Tuesday, November 14, 2000 1:48 AM
> To: [EMAIL PROTECTED]
> Subject: [JAVA3D] Exception with 1.2.1 beta 1 (OGL)
>
>
> Hi,
>
> I just tried to move to Java 3D 1.2.1 beta 1 (OGL version) on WinNT 4.0
>
> I was previously on Java 1.2 (also OGL)
>
> I am now getting the following exception which wasn't occurring before :
>
> Exception in thread "main" java.lang.NullPointerException
> at javax.media.j3d.CompileState.addShape(CompileState.java:156)
> at
> javax.media.j3d.Shape3DRetained.merge(Shape3DRetained.java:1716)
> at javax.media.j3d.GroupRetained.merge(GroupRetained.java:1788)
> at
> javax.media.j3d.TransformGroupRetained.compile(TransformGroupRetained.java:3
> 08)
> at javax.media.j3d.GroupRetained.compile(GroupRetained.java:1761)
> at
> javax.media.j3d.BranchGroupRetained.compile(BranchGroupRetained.java:146)
> at
> javax.media.j3d.BranchGroupRetained.compile(BranchGroupRetained.java:121)
> at javax.media.j3d.BranchGroup.compile(BranchGroup.java:82)
> at rob.ref.Slab.<init>(Slab.java:649)
> at rob.ref.Wall.doSlab(Wall.java:66)
> at rob.ref.Room.doWallSlabs(Room.java:472)
> at rob.ref.House.init(House.java:119)
> at rob.ref.House.setRooms(House.java:168)
> at rob.ref.ManorHouse.<init>(ManorHouse.java:51)
> at rob.ref.Start.init(Start.java:286)
> at rob.ref.Start.main(Start.java:415)
>
> Any suggestions ?
>
> Thanks
> Rob
>
>
> Rob Nugent
> Development Manager
> Critical Path Southampton
> [EMAIL PROTECTED]
> http://www.cp.net
> Tel: +44 (0) 1489 585503
> Fax: +44 (0) 1489 881363
>
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