Thorsten Froehlich wrote:

>In short: Nowhere is ever said a partial image is good for anything but a
>continued trace.  And the image size is required prior to read the image.
>This is how all image formats work, and how all image formats are output in
>POV-Ray.

I've never used the continued trace feature, but I do partial renders quite
often. The uncompressed Targa format works well for me, as it handles large
image sizes and I can read the partial image (my image program displays the
partial render in the upper left corner, with garbage filling the rest). I
also grab partial renders from the screen.

I was always a little surprised POV-Ray didn't simply create an image the
size of the partial render, but that appears to be because I never used the
continued trace feature. Is there a more efficient "partial render"
technique that I'm missing?

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