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So in addition to finding it's own path, you can have one object, shadow or follow another object as well. So in this animation we have Suzanne and she is jumping around and she rotates and she reaches the apex of her ascent and then descends down and lands gently back on the ground like the true ballerina that she is. Now if we wanted this object to follow her precisely, we could just Shift-click on the two and make the Cube a child of Suzanne and now as Suzanne takes off, the object is offset from Suzanne according to her access and so that's why the box's location and rotation is a little different but it's following the same path that Suzanne is.
So, if, you were looking at this, this is sort of like a break dancer, when they do that serpentine kind of motion and so we are going to just go ahead and do an Alt+P to remove that parenting. The other way to make this Cube follow Suzanne is to add a Copy Location Constraint. When we enter the Copy Location Constraint, we need to go ahead and enter in the name of the object that we want this Cube to follow, in this case Suzanne and now the cube will follow and Copy the Location in X, Y and Z according to whatever Suzanne does.
Now if we wanted to go ahead and knock off the X then, now as Suzanne moves through time and space and goes up and down and over, the Cube only goes up and down. We can also just offset the Cube from its initial position. So I just grab the Cube here and we'll put it over here, lets say. And now the location is copied but notice that the Cube doesn't rotate even though Suzanne is rotating. I can change the Influence to here down, to like 50% or so and so now as Suzanne moves around, she is like on a rubber leash to the block.
So this would be like if your Doll was on the leash and this is a center block that it's tied to, and even though if she is hopping around the Cube doesn't move nearly as much. We can also add on additional Constraints like Copying the Rotation and the Scale as well. The other way to have an object mimic of the action of another is through copying the IPO curves. Now Suzanne here has an IPO curve right here and we'll call it Suzanne and it's defined by a bunch of keys, as with almost everything else in Blender things are sharable, Blender believes in sharing.
So what we can do is come over here and select the Cube and then instead of adding a new IPO curve, we can go ahead and select Suzanne. Now the Cube will have the exact same path as Suzanne and as soon as, we change frames it's going to be doing that exact Copying again. The new things about IPO curves is it's really easy to make a single user copy just like with everything else in Blender that's shared, we can just click here on the number and make a single user copy of this Cube.
Let's say if we want to erase the X channel, select the X curve and delete it, move the Cube over here and now once we have select all the other channels, we have a rotation and location curve that follows the original Suzanne but except that it's not moving in the X direction. So that's the way you can make one object mimic the animation of another object.
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