Preparing the Particles for Rendering

In the next exercise, you'll practice changing the particle type and applying materials to it. The type of smoke you want in this scene is a cartoon-style, white, puffy smoke, which would be difficult to convincingly apply to tetrahedron shapes. So you will replace each particle with a Shape Facing particle, which is a flat square that has special animation controllers that allow it to always be perpendicular to a chosen camera.