dsh-plugin-blender-3d

A DeepSeek Harness plugin that lets the agent drive 3D modeling through a JSON bridge — create primitives, run boolean CSG, transform, assign materials/modifiers, query the scene, and export STL/OBJ/PLY/GLTF/GLB.

It bundles two interchangeable runtimes speaking the same protocol:

Runtime	Needs Blender?	Engine	Use when
headless_bridge.py (default)	❌ no	trimesh + manifold3d	headless servers, CI, the harness
blender_ai_bridge/ add-on	✅ Blender 3.0+	bpy	you want full Blender power

Point the tool at a running Blender (set AIB_PORT to the add-on's port) and the same commands upgrade to real Blender — no code change.

Install

dsh plugin --profile web add dsh-plugin-blender-3d

Restart dsh web (or let HMR pick it up). The plugin registers two model-facing tools:

• blender_model — { command, args } → JSON result. Commands: create_shape, boolean, transform, duplicate, delete, rename, material, modifier, mesh_edit, scene, selection, scene_clear, camera, light, render, export, import, script, command, document.
• blender_scene — lightweight scene summary (names/types/counts, no mesh data).

It also contributes the blender-3d-modeling skill (auto-installed into $DSH_HOME/skills on first load if absent).

OOM-safe by design

Heavy geometry never enters the Node/JSON tool channel. Exports return a file_path; the agent reads the model from disk with its own file tools. This is the fix for the Node Ineffective mark-compacts near heap limit crash that occurs when full meshes are stuffed into JSON.

Configuration

Env / config	Default	Meaning
AIB_PORT	13082	bridge port (set to the add-on port to drive real Blender)
AIB_HOST	127.0.0.1	bridge host
AIB_PYTHON	python3	interpreter for the headless bridge

Headless runtime deps

pip install numpy trimesh manifold3d

Publish to the marketplace

See PUBLISH.md. TL;DR: npm publish → open a PR to awesome-dsh-plugin/awesome-dsh-plugin adding registry-entry.json to the list.

License

MIT

Example

node examples/carve_block.mjs   # box minus sphere -> carved.stl