rldDirection(v3)
            const thetaMan = Math.atan2(rotationMan.x, rotationMan.z)
            this.man.body.setAngularVelocityY(0)

            const l = Math.abs(theta - thetaMan)
            let rotationSpeed = isTouchDevice ? 2 : 4
            let d = Math.PI / 24

            if (l > d) {
              if (l > Math.PI - d) rotationSpeed *= -1
              if (theta < thetaMan) rotationSpeed *= -1
              this.man.body.setAngularVelocityY(rotationSpeed)
            }

            /**
        