Smith, David wrote:
Thanks Kelvin.
I removed the threading aspect. And that caused me
to reorg my code a little, and voila, no NullPointerException.
However, I get only the background color in my buffer.
The things I noticed differently in the examples, is
that they add the off screen canvas to the view, before
they add the scene to the scene graph, and the fact that
they use a Raster object to display the image.
Are either of these things required?
No.
My basic design is to create an offscreen canvas on the fly,
attach it to my view, render into it, dump the data, and
remove the canvas from the view.
Does this sound reasonable?
This should work. What thread are you using to run the code:
View view = ...
view.addCanvas3D( offscreencanvas );
view.stopView();
view.renderOnce();
view.startView();
offscreencanvas.renderOffScreenBuffer();
offscreencanvas.waitForOffScreenRendering();
view.removeCanvas3D( offscreencanvas );
Don't use Behavior callback, try running on
user thread. A simple test case would be [EMAIL PROTECTED] for
us to see what's wrong.
- Kelvin
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