Method is_traceable

src/scene/object.cpp:277–289

}

bool Object::is_traceable() const
{
  /* Not supported for lights yet. */
  if (geometry->is_light()) {
    return false;
  }
  /* Mesh itself can be empty,can skip all such objects. */
  if (!bounds.valid() || bounds.size() == zero_float3()) {
    return false;
  }
  /* TODO(sergey): Check for mesh vertices/curves. visibility flags. */
  return true;
}

uint Object::visibility_for_tracing() const
{