Curve (vuo.motion.curve)

Calculates a position along an easing curve.

The output of this node can be used to control the speed, position, or other parameters of an animated object. Send gradually changing values to the time input port, and connect the value output port to the part of the composition that controls the parameter.

• time — The time at which to calculate the curve.
• startPosition — The position at time 0.
• endPosition — The position when time reaches duration.
• curve — The shape of the curve.
• easing — Which part of the curve is shallow.
• loop — How time repeats once it exceeds duration.

If startPosition, endPosition, and value are 2D or 3D points (as opposed to real numbers), then each coordinate of value is calculated separately. For example, the x-coordinate of value will fall along a curve based on the x-coordinates of startPosition and endPosition, and the y-coordinate of value will fall along a curve based on the y-coordinates of startPosition and endPosition.

Keywords: bounce, circular, cubic, ease, easing, exponential, gravity, logarithmic, quadratic

Example compositions:

• Compare Easing Curves: Compares different easing curves used to control an animated object's speed as it moves from one point to another.
• Draw Curve: Moves a layer along a curved path, leaving a trail where the layer has been.