The first thing we’ll look at are blend shapes, which are used in animation as a way to change the shape of a model over time. Maya calls them blend shapes, while Blender calls them shape keys and Unreal Engine 5 calls them morph targets. Create your morph targets The first step when setting up blend shapes is to duplicate your main model, once for each face shape you need. Generate the shapes Next, work you way through the morph targets, adjusting them to form the various shapes you need. Connect using a blend shape Finally, use your application’s blend shape tool to connect the morph targets to the main model.