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3D Point Control to 2D X,Y
I’m trying to create an expression to combine a Z-Depth slider into a 2D coordinates.
I’m going to be using this a lot so wanted to save it as a preset, as in other circumstances, I’d create a Null layer, set it as 3D and use toComp([0,0,0]) to get the desired result.
I can’t find out how to do this with the raw numbers. Any ideas?
http://www.YouTube.com/ShiveringCactus – Free FX for amateur films
https://shiveringcactus.wordpress.com/ – FX blog -
2 Replies
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Give this a spin:
x = effect("Point Control")("Point")[0];
y = effect("Point Control")("Point")[1];
z = effect("Slider Control")("Slider");zoom = thisComp.activeCamera.zoom;
depthScale = zoom / (zoom + z);offset = [x,y] - [thisComp.width/2, thisComp.height/2];
scaledOffset = offset * depthScale;
[thisComp.width/2, thisComp.height/2] + scaledOffset;You’ll need to provide your own values for x, y and z.
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
Works brilliantly. Thanks very much – I lost hours on Sunday looking for the answer.
http://www.YouTube.com/ShiveringCactus – Free FX for amateur films
https://shiveringcactus.wordpress.com/ – FX blog
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