  The current event display system in the offline software of Jiangmen
Underground Neutrino Observatory Experiment(JUNO) is based on the ROOT EVE
package. We use Unity, a renowned game engine, to improve its performance and
make it available on different platforms. Compared to ROOT, Unity provides a
more vivid demonstration for high energy physics experiments and can be ported
to different platforms easily. We build a tool for event display in JUNO with
Unity. It provides us an intuitive way to observe the detector model, the
particle trajectories and the hit distributions.
