Mitsuba is described as 'Research-oriented rendering system for forward and inverse light transport simulation. It consists of a core library and a set of plugins that implement functionality ranging from materials and light sources to complete rendering algorithms' and is an app in the photos & graphics category. There are more than 25 alternatives to Mitsuba for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup apps. The best Mitsuba alternative is LuxCoreRender, which is both free and Open Source. Other great apps like Mitsuba are MoonRay, Adobe Dimension, POV-Ray and Cycles Renderer.