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3d Point Control
how to use “toComp” expression with “3d Point Control” ?
usually,if we want to match a 2dPosition to a 3dLayer(Null), we may use: thisComp.layer(“Null”).toComp([0,0,0])but how to achieve the similar if i wanted to 2D match a 3dPoint defined by a “3d Point Control”? the z value in the “3D point control” doesn’t seem to have any position values to the comp.
🙂 thanks
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4 Replies
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I think the layer with the 3D point control has to be a 3D layer before the point control’s z coordinate will have any affect on toComp().
Dan
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i have a 3d point control and a circle effect, what i trying to achieve is to link the circle effect.center to the 3d Point. without any 3d Nulls in the scene,
hopefully i can save the preset and use it as an independent 3d circle effect 🙂however i not able to toComp or use the z values in the 3d point control.
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combining with the beam effect, i was trying to make something similar to plexus plugin, but with auto animation driven by in/outPoints.
it will be a bonus if i could somehow link the z values as a multiplier of the circle’s radius.
now i have a 2d chain of circles with a bunch layers of messy codes :S
the animation goes like: a circle grows into a chain, then eventually the 1st circle will go to the 2nd circle position and vanish, &so on..
ef=2; // index of the 3d Point control
t=.3; //transition time
t2=inPoint+(t*(ef+2));
t1=((ef-2)*t); //offsetting to the next 3d point
v1=effect(ef+7)("Center"); //ef+7 is index of the circle effect
v2= effect(ef)("3D Point");
if(time>=t2) ease(time,t2,t2+.3,v2, effect(ef+1)("3D Point")) else
ease(time,inPoint+t1*((ef-1)*t),inPoint+t1*((ef-1)*t)+t,v1,v2)
// messy but worked :p
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https://reels.creativecow.net/film/16257
a preview of my project -
On a side note, do you happen to know the xml entry for a 3d Point Control?
A 2d Point Control looks like this:
Point name="$$$/AE/Preset/Point1=Point 1" default_x="0" default_y="0"
Also where you were able to find that information would be helpful too.-bsides
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