title: add physics on blender model, three.js Physijs
body: <p>How can i add physics on a blender model ?
  I tried ConvexMesh, ConcaveMesh but no luck.</p>
  
  <pre><code>var mesh = {... blender exporter ...}
  
  var loader = new THREE.JSONLoader();
  var mesh_obj = loader.parse(mesh,'./');
  var mesh_materials = mesh_obj.materials;
  var mesh_geometry = mesh_obj.geometry;
  
  var _materials=[];
  for ( var i = 0, i&lt;mesh_materials.length;i ++ ) {
   var materialv = Physijs.createMaterial(mesh_materials[i],0.8,0.1);
   _materials.push(materialv)
  }
  
  mesh = new Physijs.ConcaveMesh(mesh_geometry, new THREE.MeshFaceMaterial(_materials),0 );
  scene.add(mesh)
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/2YLYe.jpg" alt="screenshoot"></p>