Method reflect

src/main/java/field/linalg/Vec3.java:1309–1315

Reflect this vector about the given normal vector. @param normal the vector to reflect about @return this

(Vec3 normal)

	 * @return this
	 */
	public Vec3 reflect(Vec3 normal) {
		double dot = this.dot(normal);
		x = x - 2.0 * dot * normal.x;
		y = y - 2.0 * dot * normal.y;
		z = z - 2.0 * dot * normal.z;
		return this;
	}

	/**
	 * Reflect this vector about the given normal vector.