BACKWARD
ABSTRACT
A 3-vector representing a vector that points backward (because Monocurl uses a right handed coordinate system, this is generally towards the screen). This constant is equal to {0,0,-1}
DECLARATION
let BACKWARDA 3-vector representing a vector that points backward (because Monocurl uses a right handed coordinate system, this is generally towards the screen). This constant is equal to {0,0,-1}
let BACKWARD