# google/monster-mash

Repository: https://github.com/google/monster-mash
Canonical: https://ross.abutalabs.com/products/monster-mash
Language: C++
License: Apache-2.0
License Family: permissive
Last push: 2026-03-11T19:57:43+00:00

## Health v2 (maintenance only)
Score: 64/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 71, release rhythm 35, longevity 100
- inputs: {"age_days": 2043, "days_push": 175, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1330, forks 184 (observed 2026-08-28T04:04:24.104997+00:00)

## What it is
Monster Mash is an open-source sketch-based 3D modeling and animation tool that lets users sketch a 2D character, inflate it into 3D, and animate it entirely from the sketching plane. It is the source code behind the MonsterMash.zone web demo, built from C++ with SDL and emscripten, accompanying a SIGGRAPH Asia 2020 paper.

## Use cases
- sketch a character and turn it into a 3D model
- animate a 3D character without 3D manipulation
- casual 3D modeling from a single drawing
- prototype character animations quickly
- run a sketch-based modeling tool in the browser
- study research code for sketch-based 3D inflation and animation

## When to choose
- you want quick, casual 3D character creation from sketches without learning 3D modeling software
- you need a browser-based modeling and animation demo
- you want to explore SIGGRAPH research code on single-view 3D modeling

## When to avoid
- you need production-grade 3D modeling with precise control like Blender
- you require an officially supported product with long-term maintenance
- you need a full animation pipeline with rigging, texturing, and rendering

## Facets
- artifact type: application
- maturity: maintenance
- function: graphics, animation, simulation
- domain: graphics, computer-vision
- platform: cpp, wasm, cross-platform
- tags: sketch-based-modeling, 3d-modeling, character-animation, siggraph, webassembly, sdl, game-development, web-server, linux

## Member repositories
- google/monster-mash (main) score 64

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:24.104997+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 2026-08-30T04:45:31.505594+00:00, confidence not recorded.
  - readme: https://github.com/google/monster-mash (fetched 2026-08-28T04:04:24.104997+00:00, sha 0411ec6b5bb3)
- Data as of 2026-08-30T08:39:29.467469+00:00.