A Blackbird Called Sue shows how to make an animated neon Effect With Resolve.
A new walkthrough from the Blackbird Called Sue channel covers how he created an organically animated neon effect in Black Magid Davinci Resolve or Fusion. The project uses particles to generate an organic grow and wipe effect.
You can download the project to have a poke-around. There is a word of warning though, the particles are generated exponentially (more or less), and as the render/timeline progresses, your computer may start struggling.