Rescaling a 3D scene based on a FBX-file with camera in Nuke

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  01 January 2013
Rescaling a 3D scene based on a FBX-file with camera in Nuke


as you can see in the picture, I imported a FBX file from Cinema 4D to Nuke. The camera movement comes also from the FBX file.
In the next step I will create rain, to have a starting point to work with, I use the ParticleRain-preset. The "container" for the rain is the little green box. I don't want to scale the rainbox.
When I now use the TransformGeo-Node, I can scale down the geometry, but then the animated camera is wrong.

Is there a way to rescale the whole scene including the camera?
Thanks for your help.
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  01 January 2013
you can scale the geo and then scale the camera too
in you camera node put an expression in the cameras transform knobs, something like

you can even make a new user knob on the camera, link that one to the scale knob of the transform geo node and use the new user knob in the expression on the camera. so you have everything automagically linked together
  01 January 2013
Thank you, but I can't put the curve/100 expression in the camera knobs, it's all locked because Nuke read the camera data from the FBX file.
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Last edited by Ash007 : 01 January 2013 at 11:06 AM.
  01 January 2013
you can just uncheck the "read from file" box after you loaded the fbx once. then you can edit the expression on the transform tab

the "read from file" is more meant to be to have always the correct animation there if you still changing the animation. this will read the fbx file for everyframe and is in most cases not needed
  01 January 2013
Ah ok, thanks for the help, learned alot. Now it works.

Btw, really nice showreel! Best regards to Stuttgart.
  01 January 2013
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