Taking full advantage of the brush and eraser tools is essential when editing complicated cinemagraphs. Masking will determine which areas of your cinemagraph are in motion. Use the brush tool to paint a mask on the areas where you want the motion from your video to appear and the eraser tool to remove the motion. Learn the best ways to make use of the brush and eraser tools in the tutorial below.
Cinemagraphs can be easily created when there is a clear separation between your motion and still components. However, sometimes you’ll record a video with motion overlapping in the foreground and background making certain areas more difficult to mask. In these scenarios, you can adjust the size, hardness, and opacity of the brush and eraser tools to apply a precise mask.
Size: You can adjust the size of your brush and eraser by dragging the slider left or right. Adjusting the size of will help you cover large areas quickly or go into small details. Zoom in and out of your cinemagraph by pinching in and out on your trackpad or by using the keyboard shortcuts Command+ or Command-.
Hardness: You can adjust how hard or soft the edge of your brush and eraser are by dragging the slider left or right. This is helpful when your subject does not have cleanly defined edges.
Opacity: You can adjust how transparent your brush and eraser are by dragging the slider left or right. This is helpful when the still and motion components of your cinemagraph are connected and need to be blended.
Note: In order to successfully blend the still and motion components of your cinemagraph, the overlapping motion must be subtle. This process may take some experimentation before creating the perfect mask for your cinemagraph.