I took my last processing sketch to the next level and instead of making the pendulum swing on a plane using polar coordinates i made it swing on the surface of a sphere by keeping the radius fixed and changing the two angles of a spherical coordinate set. Then I created a curve out of the last view points and rotated the whole construct a little bit to make the 3D effect more obvious.
click here to start the sketch or download the sourcecode.
processing sound visualizer explained
polar coordinate pendulum in processing
customized coffe mug with processing
processing sound visualizer