Insert meshes during the game, in real time


I am a newbie in unity. There is any way to insert a mesh, object or person with animations inside a game in real time during the execution of the game?

If there is, how?

  • Asset Bundles (Pro only feature).
  • Write your own ‘language’ and parsing code, and build the assets dynamically

In both solution, the assets “go away” when the game is stopped and must be reloaded next time the game is run.