Yeah, thats a great solution. Check these for some nice tips going down
that road:
http://www.nukepedia.com/written-tutorials/understanding-uvmaps-warping-with-stmap-pt-1/
http://www.nukepedia.com/written-tutorials/understanding-uvmaps-warping-with-stmap-pt-2/
I'm not sure if PTGui allows you to redistort an image based on your
lens solution, but if it does, you can read in a 32-bit normalized UV
ramp (0 to 1 in X and 0 to 1 in Y) that is the size of your undistorted
plate and use the resulting distorted UV image to feed into nuke's lens
distort node or an STMap. I've used this technique coming from boujou
and it's spot on.
John Mangia
Sent from my iPad
On Jun 13, 2012, at 11:20 AM, "Graham Houston"
<nuke-users-re...@thefoundry.co.uk> wrote:
If I have distortion parameters from PTGui, (lens correction
parameters: abc, image shift: de), how do I translate that into Nuke's
LensDistortion node?
I see the 'Card Parameters' rollout, but the only values that affect
the image output are the 'Radial Distortion' fields.
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Magno Borgo
www.borgo.tv
www.boundaryvfx.com
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