Mitsuba 3 is a research-oriented retargetable rendering system, written in portable C++17 on top of the Dr.Jit Just-In-Time compiler. It is developed by the Realistic Graphics Lab at EPFL.

It can be compiled into many variants with optional derivative tracking, dynamic compilation via LLVM or CUDA, and various radiance representations (monochrome, RGB, or spectral light, potentially with polarization).

Mitsuba 3 consists of a small set of core libraries and a wide variety of plugins that implement functionality ranging from materials and light sources to complete rendering algorithms. It strives to retain scene compatibility with its predecessor Mitsuba 0.6.