3D Game Style Navigation

This patch implements 3D style navigation using the mouse to determine the rotation (i.e., the direction you are looking) and the standard w-s-a-d keys to move forward, backward, left, or right, respectively. There is an example 3D model in the scene that has the letters AAA / BBB / CCC / DDD to give you an orientation.

The patch uses a combination of a User Actor called “Keyboard Navigate” which calculates the correct x and z translation based on the current rotation, and another Javascript actor that computes the translation and rotation in the way the 3D Stage Orientation actor requires them.

Note that the included three.min.js javascript library must accompany this patch, and must be at the same level as the Isadora .izz file that uses it.