sumdumguy wrote:
> I have a scene where only a small part gets changed frame to frame so I want to
> render the first frame fully and then the following frames only for a selection
> of rows and columns, automatically keeping the rest of the pixel values
> unchanged from first frame. How do I do this?
> 
> 

I've done something like this; basically an image in a TV with a static 
scene around it.

Easiest method I've found is to render the moving part as a separate 
file, and then blue-screen/overlay/chromakey/... it into the final 
animation using whatever video editing software you prefer.

Bryan

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