Watch VFX artists react to 'Sonic the Hedgehog' movie's CGI

This is One Good Thing, a weekly column where we tell you about one of the few nice things that happened this week.

CGI, when done well, blends seamlessly into the environment of a TV show or movie. When it's bad, though, hoo boy.

Good or bad, the fact that it's an art you're not meant to notice often leaves VFX artists in the dust in terms of recognition and appreciation. Even the most horrendous examples of VFX have an insanely huge amount of work behind them.

But that doesn't mean we can't roast them a little.

Professional VFX artists Wren Weichman, Clinton Jones, and Niko Pueringer for the digital video production team Corridor Digital took a stab at reviewing some fantastic examples of flawless CGI and some uh, less than stellar results (especially when it comes to a certain blue hedgehog.)

To be fair, they do start off singing the praises of the epic (and seriously difficult to achieve) effects from Game of Thrones. "It's tough to make a dragon look real because there's no such thing," one comments.

By pointing out the specific effects, animation techniques, and lighting theory behind the scenes, the team expertly breaks down exactly why the famous shots work so well.

The video could've turned very quickly into a merciless dunk-fest, but the hosts clearly have an immense respect the craft and its difficulty. Even when the results don't come out looking all that realistic.

But it is pretty satisfying to watch them scream in unison when the image of Sonic the Hedgehog's latest CGI design comes onscreen.

"They gave him human teeth! He has actual, proportioned legs," they cry out.

So if you're a fan of roasts that are backed by expert opinions, this one's the one for you. Long live Sonic's human teeth.