[Dan Ebberts]

You’re correct – expressions can’t access mask vertices. You can do it with a script though.

Dan

[Dan Ebberts]

The position of any layer that has a parent is no longer represented in world space, but relative to the parent’s upper left corner. If you want the world or comp equivalent, you need to use one of the layer space transforms. It would look like this:

L = thisComp.layer(“Null 1”);
P = L.toWorld(L.anchorPoint);

or

L = thisComp.layer(“Null 1”);
P = L.toComp(L.anchorPoint);

Dan

[Dan Ebberts]

The position of any layer that has a parent is no longer represented in world space, but relative to the parent’s upper left corner. If you want the world or comp equivalent, you need to use one of the layer space transforms. It would look like this:

L = thisComp.layer(“Null 1”);
P = L.toWorld(L.anchorPoint);

or

L = thisComp.layer(“Null 1”);
P = L.toComp(L.anchorPoint);

Dan

[Dan Ebberts]

You’re not going to want to name a variable “startTime” because it’s already defined as the read-only start time of the layer. So you can’t change it. Not very useful as a variable. 🙂 (Learned the hard way – tough bug to find)

Dan

[Dan Ebberts]

You’re not going to want to name a variable “startTime” because it’s already defined as the read-only start time of the layer. So you can’t change it. Not very useful as a variable. 🙂 (Learned the hard way – tough bug to find)

Dan

[Dan Ebberts]

The last three examples on the page that yikesmikes referenced keep the “cars” evenly spaced. No crashing. 🙂

Dan

[Dan Ebberts]

The last three examples on the page that yikesmikes referenced keep the “cars” evenly spaced. No crashing. 🙂

Dan

[Dan Ebberts]

This should give you the position of the camera in world space:

C = thisComp.layer(“Camera 1”);
P = C.toWorld([0,0,0]);

DAn

[Dan Ebberts]

This should give you the position of the camera in world space:

C = thisComp.layer(“Camera 1”);
P = C.toWorld([0,0,0]);

DAn

[Dan Ebberts]

This assumes that your keyframed action occurs starting at time = 0. The animation will trigger at each marker:

n = 0;
if (marker.numKeys > 0){
  n = marker.nearestKey(time).index;
    if (marker.key(n).time > time){
      n--;
    }
}

if (n > 0) t = time - marker.key(n).time else t =0;

valueAtTime(t);

Dan