View Full Version : Mirroring Roto in Nuke

11 November 2011, 10:16 PM
Hi folks, I'm doing some roto in Nuke. I have to roto a person, and their reflection in a mirror. I'd like to use the mirror node for this; the angle of the camera seems to be such that I could mirror possibly.

I've created a mirror node to my node tree directly after the RotoPaint node, but all that does is flip my entire image, roto and all. I just want to flip the splines. Any suggestion on how to do this?

11 November 2011, 07:20 PM
I would suggest to copy-paste your roto as roto2
transform-cornerpin to flip, transform-position to
place it in the mirror and then put it under your
initial roto.
( Corner pin is also useful to tweak the mirror image if

12 December 2011, 05:39 PM
Sorry to pop back in here after so much time. I figured out a simpler work-around in order to mirror roto. You can just duplicate a spline and set the duplicate spline's scale to -1 on the x or y axis (or both, depending on what you want) and it flips the duplicate and makes it a very nice mirror.

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12 December 2011, 05:39 PM
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