Transformation function to get the pixel coordinates from given 3D coordinates of a point

See this thread on transforming 3D positions to 2D coordinates: https://groups.google.com/forum/#!searchin/cesium-dev/scenetransforms%7Csort:date/cesium-dev/pR7WKlzhZ8w/zX4-6IrLBwAJ

And the reverse can be done with scene.pickPosition.

Would definitely be curious to see the result! Is this part of a university project?