Self-hosted GLSL shader platform
cf591424a1
MCP Server (8 tools):
- browse_shaders: search by title, tags, type, sort (trending/new/top)
- get_shader: full details + GLSL source by ID
- get_shader_versions: version history with change notes
- get_shader_version_code: GLSL code from any specific version
- submit_shader: create new shader (published or draft)
- update_shader: push revisions with change notes, auto-versions
- get_trending: top-scored shaders
- get_desire_queue: open community requests
MCP resource: fractafrag://platform-info with shader format guide
Auth: Internal service token (Bearer internal:mcp-service) allows MCP
server to write to the API as the system user. No user API keys needed
for the MCP→API internal path.
Transport: Streamable HTTP on port 3200 via FastMCP SDK.
Stateless mode with JSON responses.
Hot Score Ranking:
- Wilson score lower bound with 48-hour time decay
- Recalculated on every vote (up/down/remove)
- Feed sorts by score for trending view
Connection config for Claude Desktop:
{
"mcpServers": {
"fractafrag": {
"url": "http://localhost:3200/mcp"
}
}
}
|
||
|---|---|---|
| .bg-shell | ||
| db | ||
| scripts | ||
| services | ||
| .env.example | ||
| .gitignore | ||
| DECISIONS.md | ||
| docker-compose.dev.yml | ||
| docker-compose.override.yml | ||
| docker-compose.yml | ||
| FRACTAFRAG FULL SPEC & SUMMARY.md | ||
| README.md | ||
🔥 Fractafrag
A self-hosted GLSL shader platform — browse, create, generate, and share real-time GPU visuals.
Fractafrag fuses three experiences:
- TikTok-style adaptive feed of living, animated shaders that learns your taste
- Shadertoy-style code editor for writing, forking, and publishing GLSL shaders
- AI generation layer where you describe what you want and the platform writes the shader
Plus a desire queue / bounty board where users express what they want to see, and human creators or AI agents fulfill those requests.
Quick Start
# 1. Clone and configure
cp .env.example .env
# Edit .env with your secrets
# 2. Launch everything
docker compose up -d
# 3. Open
open http://localhost
Architecture
nginx (reverse proxy)
├── / → React frontend (Vite)
├── /api/* → FastAPI backend
└── /mcp/* → MCP server (AI agent interface)
postgres (pgvector/pgvector:pg16) — primary datastore + vector similarity
redis (redis:7-alpine) — cache, rate limiting, job queue
renderer — headless Chromium shader renderer
worker — Celery job processor (render, embed, AI generate)
Tech Stack
| Layer | Tech |
|---|---|
| Frontend | React 18, Vite, Three.js, TanStack Query, Zustand, Tailwind CSS |
| Backend | Python, FastAPI, SQLAlchemy, Pydantic |
| Database | PostgreSQL 16 + pgvector, Redis 7 |
| Jobs | Celery + Redis |
| Renderer | Node.js + Puppeteer (Headless Chromium) |
| MCP | Python MCP SDK, HTTP+SSE transport |
| Payments | Stripe (subscriptions + Connect) |
| Container | Docker Compose, single-stack |
Milestone Roadmap
| Milestone | Focus | Status |
|---|---|---|
| M0 | Infrastructure + Auth | 🚧 In Progress |
| M1 | Core Shader Loop (editor, submit, feed) | ⏳ |
| M2 | Intelligence Layer (MCP, recommendations) | ⏳ |
| M3 | Desire Economy (bounties, fulfillment) | ⏳ |
| M4 | Monetization (Stripe, subscriptions) | ⏳ |
| M5 | AI Generation (prompt → shader) | ⏳ |
Development
# API direct access (dev mode)
http://localhost:8000/api/docs # Swagger UI
http://localhost:8000/health # Health check
# Services
http://localhost:5173 # Vite dev server
http://localhost:3200 # MCP server
http://localhost:3100 # Renderer
License
Private — see DECISIONS.md for project governance.