title: Dumping 3d geometry data of a running Direct3D or OpenGL application
body: <p>For a hobby project of mine involving a 3d printer I would like to capture 3d models from various computer games. The games are running on Windows and are usually using DirectX9 but there is also one which can be configured to use OpenGL. </p>
  
  <p>Is there any tool / software which allows me to grab an entire scene from a running application and dump it into a file that can be converted into some popular 3d format like OBJ? </p>
  
  <p>What I need is the geometry only; points, edges, polygons. I do not need textures or shader data. Is this possible at all?</p>