# mitsuba-renderer/mitsuba2

Mitsuba 2: A Retargetable Forward and Inverse Renderer

Repository: https://github.com/mitsuba-renderer/mitsuba2
Canonical: https://ross.abutalabs.com/products/mitsuba2
Language: C++
License: NOASSERTION
License Family: other
Last push: 2022-08-22T09:30:10+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2561, "days_push": 1472, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2072, forks 264 (observed 2026-08-28T04:06:10.448099+00:00)

## What it is
Mitsuba 2 is a research-oriented, retargetable physically-based rendering system written in C++17, supporting CPU, SIMD-vectorized, and GPU-based rendering. It can be transformed into a differentiable renderer for solving inverse rendering problems like scene reconstruction and material design.

## Use cases
- render photorealistic images from 3D scenes
- compute gradients of rendering simulations for inverse rendering
- optimize scene parameters like geometry, BSDFs, and textures via gradient descent
- run vectorized CPU rendering with SIMD instruction sets
- do research on differentiable rendering and computational material design

## When to choose
- you need a research renderer with differentiable rendering capabilities on NVIDIA RTX GPUs
- you want scene compatibility with Mitsuba 0.6 and a plugin-based rendering architecture
- you need both CPU and GPU rendering from the same codebase

## When to avoid
- you are starting a new project - use Mitsuba 3 instead, since Mitsuba 2 is deprecated and receives no updates or bugfixes
- you need a production game engine or real-time rendering pipeline
- you need long-term maintenance and community support

## Facets
- artifact type: library
- maturity: abandoned
- function: graphics, simulation, machine-learning, gpu-computing
- domain: graphics, simulation, computer-vision, machine-learning
- platform: windows, cpp, python
- tags: physically-based-rendering, differentiable-rendering, inverse-rendering, ray-tracing, deprecated, mitsuba3-successor, research, linux, macos, gpu

## Member repositories
- mitsuba-renderer/mitsuba2 (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:10.448099+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:56:41.473122+00:00, confidence not recorded.
  - readme: https://github.com/mitsuba-renderer/mitsuba2 (fetched 2026-08-28T04:06:10.448099+00:00, sha 34d1d5ec8be5)
- Data as of 2026-08-30T08:39:29.467469+00:00.