Scratch

3D Matrix

Basically, uses two (technically three) matrices to tell where a point is.  You can rotate this point on the axis (meaning where x, y, and z equal 0) and you can also translate it.  This is actually how most 3d games are made.  I might add a scale feature, and possibly even edit the rotation to where you can rotate around any point.  Have fun!  Oh yeah, almost forgot, doesn't render anything yet, but may in the future if I figure out how to.