Massive Door with Animation

Description

A massive door with opening animation which I created for some of my old [Blender Game Engine](https://en.wikipedia.org/wiki/Blender_Game_Engine) experiments (2011). * https://www.youtube.com/watch?v=iVx7DWBU34A * https://www.youtube.com/watch?v=wTB1sXVRtvk * https://www.youtube.com/watch?v=JjOA38Ey8tg * https://www.youtube.com/watch?v=_90FL54rLdI * https://www.youtube.com/watch?v=5QX3iIYyvyo