message: clean up C++ distrib tutorial
diff: @@ -170,21 +170,11 @@ int main(int argc, char **argv)
  box3f regionBounds(
  vec3f(mpiRank, 0.f, 2.5f), vec3f(1.f * (mpiRank + 1.f), 1.f, 3.5f));
  world.setParam("region", cpp::Data(regionBounds));
  - PING;
  world.commit();
  - PING;
  // create the mpi_raycast renderer (requred for distributed rendering)
  cpp::Renderer renderer("mpiRaycast");
  -
  - // create and setup light for Ambient Occlusion
  - // TODO: Who gets the lights now?
  - cpp::Light light("ambient");
  -
  - // complete setup of renderer
  - renderer.setParam("backgoundColor", 1.0f); // white, transparent
  - renderer.setParam("light", cpp::Data(light));
  renderer.commit();
  // create and setup framebuffer
  