sample

	// Rotates object around point p
	void rotate_about(float deltaTime, glm::vec3 p, bool ended) {

		glm::vec3 axis = glm::vec3(0,1,0); //rotation axis
		glm::mat4 scale_m = glm::scale(glm::mat4(1.0f), glm::vec3(scale, scale, scale)); //scale matrix
		glm::mat4 rotation = getMatrix(Right, Up, Front, Position); //builds rotation matrix

		rotation = glm::translate(rotation, p - Position );
		rotation = glm::rotate(rotation, ROTATION_SPEED * deltaTime, axis);
		rotation = glm::translate(rotation, Position - p );

		glm::mat4 new_rot = glm::rotate(glm::mat4(1.0f), ROTATION_SPEED * deltaTime, axis);

		Matrix = new_rot * rotation * scale_m;

		//look at point P
		/*Front = glm::normalize(p - start_Position);
		Right = glm::cross(WorldUp, Front);
		Up = glm::cross(Right, Front);*/

		if (ended == true) { //if last iteration of my animation: saves position
			Position.x = Matrix[3][0];
			Position.y = Matrix[3][1];
			Position.z = Matrix[3][2];
		}
	}