First demo of Théodule Robot, the painting bot.
1) the robotic arm is animated using Elementary anchors rigged through expressions with inverse kinematics
2) an anchor controlling Particular is parented to the end of the arm
3) the target of the IK chain is animated by reproducing in the XY plane the movement of the "Keyframe Me!" Null of the 2D composition
In Particular, Bounce physics are used to have the particles stick to two 3D solids, meaning that Théodule literally paints the walls!