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VidGen: AI Video Prototype Deep Dive

March 15, 2025 8 min read

An in-depth look at VidGen, my AI-powered video prototype generation tool. This post walks through the architecture, technical challenges, and practical use cases for design-to-prototype workflows.

VidGen is more than just a transition generator—it's a full-stack tool designed to help visual designers and developers create high-fidelity interactive video prototypes using AI-assisted animation. This post will walk through the core concepts and how it brings static designs to life.

Key Concepts

  • • Design-to-video workflow pipeline
  • • Real-time motion generation
  • • AI-inferred animation rules
  • • Export-ready production assets

Technology Stack

  • • TensorFlow.js for animation prediction
  • • React for canvas composition
  • • WebAssembly for real-time rendering
  • • WebGL for motion tracking

🧠 Architecture Overview

Video Composition Engine
  • Design file parser (Fstractions)
  • AI motion inference engine
  • Real-time video renderer

🧩 Real-time Animation


// Animation engine pseudocode
const animate = (inputDesign) => {
  const motionRules = AI.generate(inputDesign);
  
  return {
    frames: generateFrames(motionRules),
    timings: {
      duration: estimateDuration(inputDesign),
      easing: getEasingCurve(motionRules),
    }
  };
};

Ready to create animated videos using AI?

Upload a design mockup and let VidGen analyze it. The AI will suggest transitions and help you build your prototype.