This After Effects tutorial flies a camera down a tunnel of particles. 
Wormholes are cool and a sci-fi staple. You’d think you would need a full 3D package with particle generation. As it turns out, 3D Particles are not the main issue, instead the challenge has always been getting a camera to move along the same motion path as the particle tunnel. In Cinema4D, this is known as Align to Spline. In this tutorial, I show how to create the equivalent using a few null objects, some simple expressions. The texture for the particles comes from a precomp which makes it simple to swap in different tunnel textures.

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