code: function( bodies, meta ){
  
              var body
                  ,view
                  ,pos
                  ;
  
              if (this.beforeRender){
  
                  this.beforeRender();
              }
  
              this._world.emit('beforeRender', {
                  renderer: this,
                  bodies: bodies,
                  meta: meta
              });
  
              if (this.options.meta){
                  this.drawMeta( meta );
              }
  
              this._interpolateTime = meta.interpolateTime;
  
              for ( var i = 0, l = bodies.length; i < l; ++i ){
  
                  body = bodies[ i ];
                  view = body.view || ( body.view = this.createView(body.geometry, body.styles) );
  
                  if ( !body.hidden ){
                      this.drawBody( body, view );
                  }
              }
  
              return this;
          }
docs: Renderer#render( bodies, meta ) -> this
  - bodies (Array): Array of bodies in the world (by reference!)
  - meta (Object): meta information
  
  Render the world bodies and meta. Called by world.render()