Method merge

src/IECoreScene/MeshAlgoMerge.cpp:370–390

} // namespace

MeshPrimitivePtr IECoreScene::MeshAlgo::merge( const std::vector<const MeshPrimitive *> &meshes, const Canceller *canceller )
{
	if( meshes.empty() )
	{
		throw IECore::InvalidArgumentException( "IECoreScene::MeshAlgo::merge : No Mesh Primitives were provided." );
	}

	/// \todo: This scales poorly with increasing numbers of meshes.
	/// Rather than allocating enough memory for everything and filling
	/// it once, we're re-allocating and re-copying from the start for
	/// each mesh. Improve the algorithm.
	MeshPrimitivePtr result = meshes[0]->copy();
	auto it = meshes.begin() + 1;
	for( ; it != meshes.end(); ++it )
	{
		Canceller::check( canceller );
		::merge( result.get(), *it, canceller );
	}

	return result;
}