The GEO method of VPGL Language get the spcified 3D geometry object from the scene.
GEO takes 2 inputs, or 1 input with option and emits 1 output. Input 0 must be 3D scene object. Input 1 / option must be string. GEO acquires the geometry object which name is matched to input 1/option, then emits this geometry to output 0.
NOTE: Every scenes and geometries have a identical name in string.