Hi Kelvin:

Thanks for the e-mail. This Bug, if it is one really, is very weird.

FYI, I am using OpenGL under Win98. I will prepare a test app. if
necessary.

My preliminary investigation shows that dynamically updating the texture
coordinates of a ByRef geometry on one part of the scenegraph ( using the
texture transformation matrix ), messes up the Text2Ds on a completely
different part of the scenegraph. The Text2Ds I am using are simply the
ones from the API with no modifications whatsoever. Does this give any
clues ? My dynamically textured object works excellently well and is not
affected by the problems with the Text2Ds.

The problem doesn't appear if I have a static textured object - that
is, a textured object whose texture coordinates are not
updated at run time.

My app. is quite complex, and I will try to pull out the relevant
classes to put together a test app. for you.

Thanks very much

Raj Vaidya


>On Mon, 28 Jan 2002 11:11:41 -0800, Kelvin Chung <[EMAIL PROTECTED]> wrote:

>Hi Raj,
>
>>Has anyone had any problems in displaying Text2Ds along with texture
>>mapped objects in the same scene ? Well, this is what happens
>>with j2se1.4beta3 and j3d1.3. The Text2Ds when displayed in a scene
>>without texture mapped objects, are rendered correctly. In the
>>presence of texture mapped objects, however, the Text2ds either display
>>as rectangular semi-transparent boxes without text (if the
>>background color is white) or as red streaks (if the background
>>is black). The red color of the streaks is probably because my
>>specified text font color is red.
>>
>>Does this have anything to do with transparency sorting...
>>
>>Any clues anybody ? Thanks in advance
>
>Which version (OpenGL/DirectX) of Java3D are you using ?
>Please give us a test program to take a look.
>
>Thanks for your bug report.
>
>- Kelvin
>------------------------
>Java 3D Team
>Sun Microsystems Inc.
>
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