Re: FW: [JAVA2D] Java 2D and OpenGL

Hi John,

Thank you for forwarding this great message.

In VisAD, using a DisplayImplJ3D (i.e., Java3D based on
OpenGL) with a TwoDDisplayRendererJ3D often gives much
better performance than using a DisplayImplJ2D (i.e.,
Java2D).  This is especially true for image displays where
there is a curvy remap of the image to the screen, as with
satellite images displayed according to lat/lon mappings.
OpenGL's texture maps make this fast, whereas all Java2D
image transforms are linear (not curvy) and not much help
for this.

Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738

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