Before getting into computationally intensive effects, the one thing I thought was really cool was reaction-diffusion where 'textures' would be coherent through

Before getting into computationally intensive effects, the one thing I thought was really cool was reaction-diffusion where 'textures' would be coherent through a volume. A cut-away of a marble block or cellular-like structures would be great to see in one of these scenes. We see single surfaces but seeing that they're not only on-the-surface gives it more substance.