message: updates from code review feedback
  use std::max() instead of ternary operator
diff: @@ -32,7 +32,7 @@ namespace ospray {
  {
  auto size = b.upper - b.lower;
  float f = size.x * size.y + size.x * size.z + size.y * size.z;
  - return (fabs(f) < 1e-20) ? 1e-20 : f;
  + return std::max(std::fabs(f), 1e-20f);
  }
  void MinMaxBVH2::buildRec(const size_t nodeID,
  