Hi!
Yesterday I saw “Harry Potter” and this morning I made two animations based on the “Protego Maxima” sequence; the first one is a growing sphere, the second one is a shield (I’m sorry for my bad English!)
For the growing sphere I’ve used two Clouds Textures, Indirect Lighting, Nodes Compositing (Glare + Gaussian Blur with two Screen Mix Nodes) and Displace; same for the shield plus a Blender Spherical Stencil texture with an animated color ramp (the mesh is a Sphere, the animation comes from the Stencil Texture).
Hope you like it… bye!