Hi Manu,
Please try Java 3D v1.2FCS (OpenGL / D3D) version.
For D3D version, you may try to use Emulation mode
java -Dj3d.d3ddevice=Emulation testprogram
to see if this is a driver bug or not.
Thanks.
- Kelvin
------------
Java 3D Team
Sun Microsystems Inc.
>X-Authentication-Warning: epsilon.cis.ohio-state.edu: varghese owned process
doing -bs
>Date: Fri, 29 Sep 2000 13:00:04 -0400 (EDT)
>From: Manu Eapen Varghese <[EMAIL PROTECTED]>
>To: Kelvin Chung <[EMAIL PROTECTED]>
>cc: [EMAIL PROTECTED]
>Subject: Re: [JAVA3D] Intersecting polygons
>MIME-Version: 1.0
>
>Hi,
>
>I was using Java 3D 1.1.3 (OpenGL version). I'm trying to isolate the
>problem into a simpler test case, since the code in which the problem
>occurred can't be released yet. I'll try to make up a smaller piece of
>code that can reproduce the problem. Unfortunately, I couldn't yet
>reproduce the case with a simple scene graph, with just one line
>connecting the centers of two spheres...
>
>The problem cropped up when I had a LineArray, which had some lines
>connecting two points which were both inside two (different) closed
>objects. Such lines were not displayed at all, though there were portions
>of those lines that ought to have been visible.
>
>Thanks for your time...I'll send the test case as soon as it's ready...
>
>Regards,
>Manu.
>
>On Thu, 28 Sep 2000, Kelvin Chung wrote:
>
>> Hi Manu,
>>
>> >X-Unix-From: [EMAIL PROTECTED] Sun Sep 24 13:48:52 2000
>> >X-Authentication-Warning: eta.cis.ohio-state.edu: varghese owned process
doing
>> -bs
>> >MIME-Version: 1.0
>> >Date: Sun, 24 Sep 2000 16:25:30 -0400
>> >From: Manu Eapen Varghese <[EMAIL PROTECTED]>
>> >Subject: [JAVA3D] Intersecting polygons
>> >To: [EMAIL PROTECTED]
>> >
>> >Hello,
>> >
>> >In my 3d model, I have a line whose two end points are hidden by other
>> >objects (polygons). But the line has a middle portion that should be
>> >visible. But Java 3D does not render the line at all.
>> >
>> >The same thing happens when I have a polygon whose end-points are ALL
>> >hidden, but a middle portion of the polygon should be visible. Again, Java
>> >3D is not rendering such polygons at all.
>> >
>> >Is there any flag that I can set somewhere that causes Java 3D to take of
>> >such polygon/polygon and polygon/line intersections correctly ? Or is it
>> >an inherent limitation of Java 3D ? Or am I doing something wrong ?
>> >
>> >If it is a limitation of Java 3D, what would be the best way around the
>> >problem ?
>> >
>>
>> Which version of Java3D (D3D/OpenGL ?) and what kind of
>> graphics card are your using ?
>> I think this is a driver bug. Please sent us a test
>> case to verify.
>>
>> Thanks.
>>
>> - Kelvin
>> -------------
>> Java 3D Team
>> Sun Microsystems Inc.
>>
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>
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