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.

Cheers,
Bill
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Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html