The rig was accurate enough to do perfect repeatable moves, so in post we faded in the night pass. The first take was with daytime lights, then we did another take with moon lighting. Both clips lined up and we could see how all of the cars and the boat needed to move throughout the shot. With the previs camera keys loaded into Dragonframe we could onion skin the live camera feed with the previs. I exported the camera move from Maya and Ben wrote a parser to convert the camera data from Maya’s ATOM format to Dragonframe’s XML format. Since we had the rig and set to scale in Maya we were able to previs the camera move and animation before production. This made moving from our ping pong table workbench to the stop motion set a bit more organized. I 3D printed a few mounting pieces to secure all the electronics together. Ben was able to modify the sketch to work with Ramps. Dragonframe offers an Arduino sketch for non-real time camera control. “We used an Arduino Mega and Ramps 1.4 to control three stepper motors and Dragonframe to guide the camera move. I went to Kiel’s shop to photoscan the set and then I used the resulting 3D model to design the stop motion rig in Maya with parts from OpenBuilds.” ” We used pre-production to solve as many potential problems as we could find.
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