frog is hosted by Hepforge, IPPP Durham








SVN (deprecated)

FROG: The Fast and Realistic OpenGL event display

FROG is a fast OpenGL event display tool mainly developped for the field of high energy physics. FROG is composed of two tools: a Displayer that is the tool actually used to visualize your data. This tools is written in java in order to guarantee the interoperability of the displayer with most of the standard computer. The second tool is a Producer that is a simple piece of code (C++ or Java) that is the interface between your collaboration software and the FROG Displayer.

This two parts conception allows FROG to be very flexible and allows fast developpement of event display for small scale experiement. Thanks to this, FROG has been used by many collaborations of various size.

Run the Displayer DEMO to see the tool capabilities. (This is going to open a java software)

If you have problem running the demo, it's likely due to the increased java security level, so you can either lower your security threshold (not recommanded), add an exception for applications from , or simply download FROG jar file directly and run it direclty from your computer.
Latest Version (10/01/2012): 3.0.0.

Use cases (and DEMO):


Talks on FROG :

  • CHEP09, Prague (23/03/2009), L. Quertenmont [pdf]
  • IPNL, Luon (09/01/2009), L. Quertenmont [pdf]
  • ACAT08, Erice (02/11/2008) L. Quertenmont [pdf]
  • CMS, CERN (29/10/2008) L. Quertenmont [pdf]
  • CP3, LLN (30/04/2008) L. Quertenmont [pdf]

Community and support:

If you are interested in receiving mails about FROG updates (<1mail/month), register to our mailing list. You can also use that list to ask questions, report bugs or require further support.

FROG Animations:

FROG is frequently used to produce animations in order to feed the media with materials that can be used on websites or even on the TV. You can find below typical events of the animation produce to share the excitement of the CMS physicist. The first one represent the first pp collision at 7TeV reccorded by CMS. While the second show a diphoton event representative of the typical events selected by the Higgs decauing to two photons analysis in CMS. Animations of that kind, can easilly be produced for any kinf of detector.