The Ray class defines the characteristics of a ray in 3D space. A ray has two Point3 components, one defining a start position and the other a direction vector for the ray.
ray <pos_point3> <dir_point3>
Returns a new ray with given position and direction vector.
<node> as ray
Takes a scene object that has a target, such as a tape measure or a target camera and returns a ray from the object to the target. Returns undefined if the object has no target.
<ray>.pos : Float
<ray>.position : Float -- pos and position are synonyms
<ray>.dir : Point3 -- unit normalized direction vector
Creates a new copy of the ray value.
newRay = copy oldRay
The new value contains a copy of the input ray value, and is independent of the input ray value.