CP SC 881 - 05: Physically Based Animation

Fall 2010

Rigid Body Simulation

Homework Assignment 5

Due: Thursday Nov. 4, 2010

Assignment:

This week, you are to redo your springy object simulation, or do an entirely new configuration, but this time using rigid body simulation. You should build one or more simple rigid polyhedral structures, and have them behave dynamically in a simulated environment. Continue using the Runga-Kutta fourth-order integration scheme, and your collision detection code for particles and planes. Particle collision detection will not always work correctly between polyhedra because collisions might be edge-edge rather than corner-face collisions. However, if you put one polyhedron within a box, corner-face collisions are the only ones that will occur. You will, however, have to modify your collision response code to impart the right impulse to the rigid body to get the appropriate reflection of the colliding vertex's velocity.

Please feel free to use the Baraff and Witkin Siggraph course notes freely, including code, in your implementation.