https://www.sidefx.com/products/houdini/
Built from the ground up, is a procedural system and this FaceRig alternative empowers the users to work freely. Here you can create various iterations and share them rapidly. It stores every action in a node that is wired into the networks that help in creating similar and yet unique results. Houdini is something like FaceRig but free and is intuitive with artist-friendly tools. Here you can explore many creative paths. Its visual effects are something that attracts users to it. Houdini is an alternative to FaceRig that allows you to make creative decisions. Houdini