message: change default maxDepth in volume pt tutorial for better initial speed
diff: @@ -334,7 +334,7 @@ int main(int argc, const char **argv)
  ospRelease(instance_data);
  // create OSPRay renderer
  - int maxDepth = 32;
  + int maxDepth = 5;
  OSPRenderer renderer = ospNewRenderer(renderer_type.c_str());
  ospSetInt(renderer, "maxDepth", maxDepth);
  ospSetInt(renderer, "rouletteDepth", 32);
  