From a few lines of DSL to a .glb you can drop into your engine.

Downloads

Verify with the SHA256SUMS file attached to each release. Builds are produced by release.yml on every v* tag — Linux x86_64, macOS Intel + Apple Silicon, Windows x86_64.

Playground

The whole MoGen pipeline — parser, validator, lowering, glTF exporter — is compiled to WebAssembly and runs in your browser. Type on the left, see the GLB on the right, no installs and nothing leaves your machine. Examples from the repo are pre-loaded; pick one from the dropdown to start.

scene {
  rounded_box "seat" (size=[0.45, 0.04, 0.45], radius=0.01)
  cylinder "leg_fl" (radius=0.02, height=0.45)
  cylinder "leg_fr" (radius=0.02, height=0.45)
  cylinder "leg_bl" (radius=0.02, height=0.45)
  cylinder "leg_br" (radius=0.02, height=0.45)
  rounded_box "back" (size=[0.45, 0.45, 0.04], radius=0.01)
}

→

Open the Playground Edit MoGen DSL with live diagnostics and a three.js GLB preview, all in-browser. Launch ▶

Note: CSG (union/difference/intersect) and the texture pipeline aren't available in the wasm build — both rely on native libraries (manifold, image) that don't link for wasm32-unknown-unknown. Use the desktop mogen CLI for those.

Gallery

Each of these started as a one-line prompt fed to mogen generate — the LLM wrote the .mog, MoGen lowered it to glTF, and the output below is the raw GLB rendered in MoGen Studio. Hover any tile to play.

Hello, chair.

This is a real, complete .mog file. Save it as chair.mog and run mogen build chair.mog --out chair.glb:

// A simple four-legged chair.
material "wood" (color=[0.55, 0.35, 0.18], roughness=0.8)

scene {
  rounded_box "seat" (size=[0.45, 0.04, 0.45], radius=0.01, mat="wood") {
    connector "c_fl" (at=[-0.18, -0.02, -0.18], dir=[0, -1, 0])
    connector "c_fr" (at=[ 0.18, -0.02, -0.18], dir=[0, -1, 0])
    connector "c_bl" (at=[-0.18, -0.02,  0.18], dir=[0, -1, 0])
    connector "c_br" (at=[ 0.18, -0.02,  0.18], dir=[0, -1, 0])
    connector "c_back" (at=[0, 0.02, 0.205], dir=[0, 1, 0])
  }

  cylinder "leg_fl" (radius=0.02, height=0.45, mat="wood")
  cylinder "leg_fr" (radius=0.02, height=0.45, mat="wood")
  cylinder "leg_bl" (radius=0.02, height=0.45, mat="wood")
  cylinder "leg_br" (radius=0.02, height=0.45, mat="wood")

  rounded_box "backrest" (size=[0.45, 0.45, 0.04], radius=0.01, mat="wood")

  attach (parent="seat", child="leg_fl", socket="c_fl", plug="top")
  attach (parent="seat", child="leg_fr", socket="c_fr", plug="top")
  attach (parent="seat", child="leg_bl", socket="c_bl", plug="top")
  attach (parent="seat", child="leg_br", socket="c_br", plug="top")
  attach (parent="seat", child="backrest", socket="c_back", plug="bottom")
}

The whole language is one shape — kind "name" (attrs) { children } — repeated. Full reference →

MoGen Studio

The desktop editor pairs the DSL source with a live 3D viewer — type, see, repeat. Click a screenshot to open full size.

Install

Linux and macOS — one-liner. Pulls the latest release, verifies the SHA-256, drops mogen and mogen-studio into $HOME/.local/bin:

curl -fsSL https://raw.githubusercontent.com/krazyjakee/MoGen/master/scripts/install.sh | bash

Pass options after -s --: --version, --bin-dir, --cli-only, --studio-only, --force.

Windows — grab the .msi (Studio) or .zip (CLI) from the downloads above.

Build from source

Requires a recent stable Rust toolchain. On Linux you also need the GTK / Wayland / X11 dev headers that eframe links against.

git clone https://github.com/krazyjakee/MoGen.git
cd MoGen
./scripts/build-release.sh                          # cargo build --release --workspace
./scripts/run-mogen.sh build examples/chair.mog --out chair.glb
./scripts/run-studio.sh                             # launch MoGen Studio

On Debian/Ubuntu, the Studio's runtime deps are libgtk-3-dev libxkbcommon-dev libwayland-dev libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libxcb1-dev libssl-dev pkg-config.

What's inside