-
Position relative to rotation
Hello!
I have a null layer which contains tracking data for position and rotation. But I want to be able to attach this null to a ‘Point Control’ so I can adjust the position of the null layer.
However, if the null is rotated 45 degrees, and I change the Y value of my point control, the null layer moves up and down relative to the composition. But I want it to move up and down relative to the rotation of the null.
How is this possible?
Thank you!
thisComp.layer("FEATURES_TRACK").effect("Chin")("Point")+thisComp.layer("FEATURES_ADJUSTMENTS").effect("Chin")("Point");Ross McDowell
Animation Student -
1 Reply
-
For example like this, when the point control is on the null layer.
xd = effect("Point Control")("Point")[0];
yd = effect("Point Control")("Point")[1];
a = transform.rotation/180*Math.PI;
xx = xd*Math.cos(a);
xy = xd*Math.sin(a);
yx = yd*Math.cos(a+Math.PI/2);
yy = yd*Math.sin(a+Math.PI/2);transform.position + [xx, xy] + [yx, yy]
There’s probably an easier way to do this with layer space transformations.
Kalleheikki Kannisto
Senior Graphic Designer
Reply to this Discussion! Login or Sign Up