How's this laser cutting effect with backlight achieved?
This question may be off-topic here, but this is almost certainly a 2D effect, and it's achievable without much difficulty in After Effects or any similar package once you've broken the effect down into individual elements.
This isn't exactly the same effect, but it gives most of the ideas: https://www.youtube.com/watch?v=uHFmWu__Q4k
The key point here is that you need to look not at the effect as a whole, but break it down into the individual elements that make it up. The parts make the whole.