Raycaster constructor

Raycaster([
  1. Vector3? origin,
  2. Vector3? direction,
  3. double? near,
  4. double? far,
])

origin — The origin vector where the ray casts from.

direction — The direction vector that gives direction to the ray. Should be normalized.

near — All results returned are further away than near. Near can't be negative. Default value is 0.

far — All results returned are closer than far. Far can't be lower than near. Default value is Infinity.

This creates a new raycaster object.

Implementation

Raycaster([Vector3? origin, Vector3? direction, double? near, double? far]) {
  ray = origin == null || direction == null?Ray():Ray.originDirection(origin, direction);
  // direction is assumed to be normalized (for accurate distance calculations)

  this.near = near ?? 0;
  this.far = far ?? double.infinity;
  layers = Layers();

  params = {
    "Mesh": {},
    "Line": {"threshold": 1},
    "LOD": {},
    "Points": {"threshold": 1},
    "Sprite": {}
  };
}