← Retour au blog
tech 17 June 2026

Show HN: Inkwash, a Watercolor Sketching App

Discover Inkwash, an innovative app for watercolor sketching directly in your browser. Dive into the world of fluid simulation and digital art.

Article inspired by the original source
Show HN: Inkwash, a watercolor sketching app and explanation ↗ johnowhitaker.github.io

Introduction

In today's digital landscape, Inkwash stands out by bringing the traditional art of watercolor into the browser. Created by John Whitaker, this unique HTML app simulates the tactile and visual experience of watercolor with remarkable precision.

Inspiration Behind Inkwash

Inkwash draws inspiration from the practical use of the waterbrush, a nylon brush with a water reservoir, allowing for quick and intuitive sketching. Whitaker, a nature journaling enthusiast, aimed to transpose this technique online, leveraging Anthropic's Claude Fable 5 model for the initial development.

Technological Foundations

The app is built on a stack of floating-point textures, processed by a dozen WebGL2 shaders every frame. This technology simulates the complex interactions between ink, water, and paper, representing ink as optical density and water as a separate texture.

User Experience and Interactive Demos

Inkwash's interface offers interactive demos that illustrate the engine's real-time functionality. Each pen stroke and brush sweep is simulated to recreate the visual effects of traditional watercolor, allowing users to explore and modify their creations instantly.

Challenges and Future Prospects

While the app is already impressive, some technical challenges remain. Real-time shader processing and optimization for various devices are continually improving. Whitaker plans to refine the code further to align the application more closely with his artistic vision.

Conclusion

Inkwash demonstrates how technology and art can merge to create innovative tools that inspire new forms of artistic expression. Ready to explore this new dimension of digital art? Let's discuss your project in 15 minutes.

Inkwash aquarelle numérique simulation de fluides WebGL2 art interactif
Deepthix newsletter · 100% AI · every Monday 8am

An AI agent reads tech for you.

Our AI agent scans ~200 sources per week and ships the best articles to your inbox Monday 8am. Free. One click to unsubscribe.

Visit the newsletter page →

Want to automate your operations?

Let's talk about your project in 15 minutes.

Book a call