message: Adding distanceToVec in sphere3d namespace
diff: @@ -277,6 +277,12 @@ namespace Sphere3D {
  export function distance(a: Sphere3D, b: Sphere3D) {
  return Vec3.distance(a.center, b.center) - a.radius + b.radius;
  }
  +
  + /** Get the distance of v from sphere. If negative, v is inside sphere */
  + export function distanceToVec(sphere: Sphere3D, v: Vec3): number {
  + const { center, radius } = sphere;
  + return Vec3.distance(v, center) - radius;
  + }
  }
  export { Sphere3D };
  