How can I get the velocity of a rigid body on impact so that I can add sound effects?
B-A: if I get the velocity right before impact by comparing the last two frames before the z component switches direction (negative/positive), then it will be too high.
C-B: if I get the velocity before and after impact by comparing the frames before the z component switches direction (negative/positive) with the frame after the z component switches direction, then it will be too low.
D-C: if I get the velocity right after impact by comparing the next two frames after the z component switches direction (negative/positive), then it will be too high.
A rigid body simluation doesn't always have a frame that's touching on the floor, so I have left it unlabelled.
