Interactive animation

Animations in InteractBuilder are created by a sequence of image files. These are triggered by an interaction such as tap. Once triggered, the animation activates all images in the sequence at the predetermined rate.

An interactive animation, on the other hand would be activated by dragging. as the finger drags from left to right the animation progresses. When the dragging stops, so does the animation. Dragging from right to left will run the animation in reverse order. 

This is analogous to the "image sequence" function in the Adobe DPS, or a VR object.