RunwayML has added Multi Motion Brush to its AI video generator, a feature that allows users to control multiple areas of their video creation with independent movements. Building on the previously announced Motion Brush, this new tool allows users to paint up to five unique subjects or areas within an input image and manipulate their motion separately from other areas. Multi Motion Brush adds additional creative control to AI video creation and editing. It's available now for Runway's Gen-2 video model. See some examples in the demo video below.