title: unity3d - large file with animations
body: <p>I have a project where a large truck model is used (around 500MB), very detailed cad model is converted to fbx format in 3dsmax.
  There are animations in the fbx model too.</p>
  
  <p>Question 1:
  Should I have all the animations as clips in the same fbx file or have separate animation files.
  As having seperate fbx files for each animation will increase the overall app size.</p>
  
  <p>Question 2:
  How to optimize the mesh which is around 500MB with lots/plenty of child objects (as is it is a very detailed mesh) for performance. Will culling reduce draw-calls or combining mesh reduce draw-call. Is there a way to reduce tris/polycount in the mesh for optimization.</p>