// //void glbox()
// {
// // Display a 3D histogram using GL (box option).
// //Author: Timur Pocheptsov
//  gStyle->SetCanvasPreferGL(kTRUE);
//  gStyle->SetPalette(1);
//    TCanvas *c        = new TCanvas("glc","TH3 Drawing", 100, 10, 850, 400);
//    TPaveLabel *title = new TPaveLabel(0.04, 0.86, 0.96, 0.98, "glbox and glbox1 options for TH3.");
//    title->SetFillColor(32);
//    title->Draw();

//    TPad *boxPad  = new TPad("box", "box", 0.02, 0.02, 0.48, 0.82);
//    TPad *box1Pad = new TPad("box1", "box1", 0.52, 0.02, 0.98, 0.82);
//    c->cd();
//    boxPad->Draw();
//    box1Pad->Draw();
 
//    TH3F *h31 = new TH3F("h31", "h31", 10, -1, 1, 10, -1, 1, 10, -1, 1);
//    h31->FillRandom("gaus");
//    h31->SetFillColor(2);
//    boxPad->cd();
//    h31->Draw("glbox");

//    TH3F *h32 = new TH3F("h32", "h32", 10, -2, 2, 10, -1, 1, 10, -3, 3);
//    h32->FillRandom("gaus");
//    //h32->SetFillColor(4);
//    box1Pad->cd();
//    h32->Draw("glcol");
//    //   h32->Draw("glbox1");
// }

 {
   TH3I* histo=new TH3I("histo","Oven Homgeneity", 122, 0.,122.,122,0.,122.,122,0.,122.); 
   gStyle->SetCanvasPreferGL(kTRUE);
   gStyle->SetPalette(1);
   histo->Fill(100.,95.,108.,94.46);
   histo->Fill(100.,95.,89.,94.19);
   histo->Fill(100.,95.,69.,93.12);
   histo->Fill(100.,95.,48.,91.9);
   histo->Fill(100.,95.,28.,87.6);
   //histo->SetFillColor(kBlue);
   histo->Draw("glcolz"); 

 }