Self-hosted GLSL shader platform
164dda4760
ShaderCanvas rewrite: - IntersectionObserver-driven rendering: WebGL context only created when canvas enters viewport, released when it leaves. Prevents context starvation when 20+ shaders are in the feed simultaneously. - Graceful fallback UI when WebGL context unavailable (hexagon + 'scroll to load') - Context loss/restore event handlers - powerPreference: 'low-power' for feed thumbnails - Pause animation loop when off-screen (saves GPU even with context alive) - Separate resize observer (no devicePixelRatio scaling for feed — saves memory) Fixed shaders: - Pixel Art Dither: replaced mat4 dynamic indexing with unrolled Bayer lookup (some WebGL drivers reject mat4[int_var][int_var]) - Wave Interference 2D: replaced C-style array element assignment with individual vec2 variables (GLSL ES 300 compatibility) |
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|---|---|---|
| .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.