The latest version of DreamWorks Animation’s open-source, in-house production renderer improves the light path visualizer, adds a GUI prototype, and includes numerous fixes.
According to the GitHub release notes, MoonRay 2.40 adds light path visualizer support to arras_render and adds new controls and stability fixes to the light path visualizer in moonray_gui. The prototype of a new user interface says to feature “usability improvements, including pixel inspection, snapshots, status bar, and improved path visualizer drawing”. It uses Dear ImGui instead of Qt and contains a number of new features.
Bug fixes:

