code: public void animate(float animationTime, Matrix4f mat)
      {
          mRotInterpolator.animate(animationTime, mRotKey);
          mPosInterpolator.animate(animationTime, mPosKey);
          mSclInterpolator.animate(animationTime, mScaleKey);
          mat.translationRotateScale(mPosKey[0], mPosKey[1], mPosKey[2], mRotKey[0], mRotKey[1], mRotKey[2], mRotKey[3], mScaleKey[0], mScaleKey[1], mScaleKey[2]);
  
      }
docs: Obtains the transform for a specific time in animation.
  
  @param animationTime The time in animation.
  
  @return The transform.