message: Completely init material
diff: @@ -761,8 +761,16 @@ void renderer::build_bvhs()
  else if (auto obj = std::dynamic_pointer_cast<sg::obj_material>(surf.first))
  {
  // TODO: consolidate model::material and obj_material!
  + newmat.ca = obj->ca;
  newmat.cd = obj->cd;
  newmat.cs = obj->cs;
  + newmat.ce = obj->ce;
  + newmat.cr = obj->cr;
  + newmat.ior = obj->ior;
  + newmat.absorption = obj->absorption;
  + newmat.transmission = obj->transmission;
  + newmat.specular_exp = obj->specular_exp;
  + newmat.illum = obj->illum;
  }
  mod.materials.emplace_back(newmat); // TODO
  