lethexa-motionpredict.js
function(position, velocity, dt) {
        return mf.add(position, mf.mulScalar(velocity, dt));
      }
function(position, velocity, dt) {
        return mf.add(position, mf.mulScalar(velocity, dt));
      }
function ( position , velocity , dt ) { return mf . add ( position , mf . mulScalar ( velocity , dt ) ) ; }
calculates the new position by speed and delta-time.
@method getPositionByVeloAndTime
@param position {Vector3d} The old position.
@param velocity {Velocity} The velocity.
@param dt {Number} The delta-time.
@return {Vector3d} The new position.
@for motionpredict
calculates the new position by speed and delta - time .