[Bf-cycles] Bf-cycles Digest, Vol 14, Issue 19

Tony Mullen tony.mullen at gmail.com
Fri Jun 22 14:46:08 CEST 2012

Hi Brecht,

Yes, using existing masking tools by hand would be great I think. If
the technique I have in mind proved useful maybe something automatic
might be worth looking into in the future.

Something like a crop node that could be plugged into an environment
texture node, and would automatically crop to the bounds of a mask
would be perfect.


> In principle it's of course possible to do this. There exist circle
> detection algorithms if this needs to be automatic, but that needs
> quite a bit of coding time. Or it could perhaps be done more manually
> by keyframing a mask in the tracker, but then I guess still missing is
> some automatic way to crop the image to the bounds of the mask, which
> is not particularly hard to implement.
> Brecht.

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