Pixar Post Podcast 055: How the 'Cars 3' Effects Team Tackled The Dirty Problem of Mud

 

Get ready as we dive into the mud and chat about the Cars 3 Production Pipeline from the perspective of Bobby Podesta (Supervising Animator), Jon Reisch (Effects Supervisor), and Michael Fong (Supervising Technical Director).

In this combined post and podcast episode (#055) we continue our Cars 3 interview series. We explore the Pixar pipeline and the challenges the effects team faced while digitally crafting mud as well as some great production tips about embracing last-minute story changes (even if that means scrapping some completed work).

Michael Fong, Andrea Warren and Brian Fee at a production meeting

Bobby Podesta kicked off our 40-minute production session (which centered around the crazy-8 sequence in the film) and shared some of the team's demolition derby research trip photos. Of course, all Pixar projects start with some form of research, and this one seemed particularly fun — crushed cars, mud, and roaring engines.

Speaking of mud, Jon Reisch gave us a peek into the 6-month development of mud in the film — is it a liquid, is it a solid? This was the challenge he and the effects team had to tackle to make the soon-to-be infamous derby scene ring true. The effects team is responsible for natural phenomena in the film (e.g., water, smoke, fire, dust) and has to provide a believable interaction with the environment which grounds the characters in the world — a world we (as viewers) can relate to.

 

So, how did Director, Brian Fee describe how to make mud? Fee joked with Reisch to make the mud look like "chunky oatmeal that's in soup." Well, between a multitude of comparisons to cake frosting and liquid chocolate, the team's efforts finally paid off, and the mud (which is integral to the scene) really looks fantastic.