About Threnic
THE GPU-ACCELERATED LYRIC VIDEO ENGINE
Built by Peter Nixon
Threnic is a solo engineering project designed, architected, and built from the ground up by Peter Nixon, a software engineer and founder of NXN Technologies LLC.
What started as a personal frustration with the lyric video creation workflow became a production-grade, browser-native rendering engine — built entirely by one person. Threnic handles real-time 3D scene composition, audio frequency analysis, GPU-accelerated post-processing, and hardware-encoded 4K video export, all running locally in the browser with no server dependencies.
The Vision
Threnic was born from a simple problem: creating high-quality, professional lyric videos is either too expensive or too time-consuming. Traditional workflows require desktop software like After Effects — expensive licenses, steep learning curves, and hours of CPU-heavy rendering for even a simple three-minute video.
The goal was to bridge the gap between static lyric generators and high-end 3D motion graphics, giving independent artists and creators the power to visualize their music with cinematic precision — without the cost or complexity of professional post-production software.
The result is Threnic: a browser-based engine that produces professional-quality lyric videos in real time, with zero software installation and zero cloud dependencies. Start creating for free — upgrade to Pro for 4K export and watermark-free output.
The Technology
Threnic is built from the ground up using modern web technologies that leverage the GPU directly through the browser — no plugins, no Electron wrapper, no cloud offloading.
Next.js
Server-side rendering and static generation for fast page loads and SEO
Three.js / React Three Fiber
GPU-accelerated 3D rendering engine for real-time scene composition
WebCodecs API
Hardware-accelerated video encoding for 4K export directly in the browser
Web Audio API
Real-time FFT frequency analysis driving audio-reactive visual parameters
TSL Shaders
Custom GPU shaders for bloom, distortion, chromatic aberration, and film grain
Local-First Architecture
Zero server dependencies; all processing happens on the user's machine
By rendering scenes using WebGL/WebGPU directly in the browser, Threnic achieves real-time, audio-reactive 3D visual previews. A custom WebCodecs export pipeline enables hardware-accelerated video encoding up to 4K at 60fps — processing renders locally on your hardware in minutes.
How Threnic Compares
| Feature | Threnic | After Effects | Online Generators |
|---|---|---|---|
| Real-Time Preview | ✓ | ✗ | ~ |
| Audio Reactivity | ✓ Built-in | Plugin Required | ✗ |
| 4K Export | ✓ (Pro) | ✓ | ✗ |
| GPU-Accelerated | ✓ | Partial | ✗ |
| No Watermarks | ✓ (Pro) | ✓ | ✗ (Free tier) |
| Zero Install | ✓ | ✗ | ✓ |
| Local Processing | ✓ | ✓ | ✗ (Cloud) |
| Cost | Free / $12 mo | $22.99/mo | $10–30/video |
| Export Time (3 min) | 2–5 min | 30–120 min | 10–30 min |
NXN Technologies LLC
Threnic is developed and maintained under NXN Technologies LLC, an independent software company. NXN is focused on pushing the boundaries of what modern browsers can do — building tools that are powerful, accessible, and respect the creator's ownership of their work.
That philosophy is baked into Threnic: free to start, fully local, and built to respect the creator's ownership of their work. Upgrade to Pro for 4K export and watermark-free output.
Roadmap
Threnic is actively developed with new features shipping regularly:
- ▸WebGPU rendering pipeline for next-generation shader performance
- ▸Expanded effect library with particle systems and 3D text extrusion
- ▸Project template marketplace for community-shared visual styles
- ▸Vertical (9:16) canvas mode for TikTok and Instagram Reels
- ▸Batch export for multiple resolution and platform presets
Get Started
Ready to create your first lyric video? Check out the Getting Started guide or dive straight into the editor. For questions, visit the FAQ or reach out at nxntechnologiesllc@gmail.com.