{
	bool draw_gl = false;

	auto h = new TH3D("h", "h", 10, 0, 10, 10, 0, 10, 10, 0, 10);
	for(int x=0; x<10; ++x)
		for(int y=0; y<10; ++y)
			for(int z=0; z<10; ++z)
				h->Fill(x,y,z,x*y*z);

	if(draw_gl)
	{
		gStyle->SetCanvasPreferGL(1);

		auto c1 = new TCanvas();
		h->Draw("glbox");

		auto c2 = new TCanvas();
		auto h1 = (TH3D*)h->Clone();
		h1->SetMinimum(100);
		h1->Draw("glbox");
	}
	else
	{
		auto c1 = new TCanvas();
		h->Draw("box");

		auto c2 = new TCanvas();
		auto h1 = (TH3D*)h->Clone();
		h1->SetMinimum(100);
		h1->Draw("box");
	}


}