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Current time:0:00Total duration:1:48

Introduction to combinatorics

Video transcript

hi my name is Luka Milosh I'm a character TD here at Pixar hi I'm Jacob Spears I'm also a character TD at Pixar we started here at Pixar on wall-e as interns and our task was to make a huge cast of background robots today's lesson is going to be about how to create a huge crowd of robots using only a few simple parts I want to take wall-e from a world where there's no robots anymore that's just him to a world where there's tons of them I just liked that contrast and suddenly making him feel like he was alone in a crowd we're trying to create a world where robots do every task that you would want done what we did first was to look at cruise ships we got a list of every single job on a cruise ship and then went through and tried to think of the robotic equivalent of that job and it became apparent quickly that that was more robots than we would ever be able to build in one lifetime so as interns Jacob and I had the task of making this huge cast of robots but we didn't want to design each individual one specifically right so luckily there was an animator Angus and he had a great idea about how to approach the process I'm a huge Lego fan and I really wanted the background characters to be the best it could be and I figured if we designed a modular system that would allow for us to add and subtract different parts onto the character for the background characters then we could kind of make whatever we needed and it would all feel like the same world doing it this way modular Lee meant we could build 10 heads 10 arms and 10 bodies and though we'd only built 30 pieces we could make a thousand different combinations yeah and there's actually a branch of mathematics about that sort of thing counting and combinations and it's called combinatorics and combinatorics is actually what your lesson today is going to be about we're going to start with a few small pieces and build a huge cast robots just like we did