Paper Bloom Simulation in Houdini — HHS2:E2
In this episode, we’re tackling a fun and visually striking challenge: recreating the Windows 11 wallpaper bloom effect, originally crafted by the team at Six N. Five. I'll walk you through step-by-step how to build the layered paper simulation in Houdini using Vellum, creating a dynamic bloom that unfolds like a flower.
We'll cover essential techniques like using the Copy to Points node, configuring Vellum cloth, and setting up custom forces to achieve a realistic, flowing motion. Plus, I’ll show you how to use Redshift for rendering, including tips on adding materials, lighting, and getting the perfect camera setup.
Whether you're looking to improve your procedural skills or just curious about how to bring abstract art to life in Houdini, this episode has you covered.
Here are 5 important lessons from this episode:
Simulating Layered Paper with Vellum
Learn how to simulate layered paper to create dynamic, blooming effects using Houdini's Vellum Solver. The technique involves setting up a grid for paper layers, pinning center points, and using upward forces to create realistic motion.
Blending Forces for Organic Motion
Understand the use of forces like wind velocity and noise amplitude to add natural undulation and variation to the simulation, enhancing realism in abstract designs.
Using Retime Nodes for Efficient Workflow
Optimize simulation playback by retiming a short simulation (e.g., 15 frames) to span a longer timeline. This saves computational resources while maintaining visually appealing results.
Shading with Subsurface Scattering and Sheen
Create visually engaging materials by combining subsurface scattering, sheen, and noise-driven attributes for shading. Customize colors and add a tactile feel to the rendered paper layers.
Procedural Design for Versatility
The node-based approach enables procedural design, making it easy to adjust parameters like resolution, colors, and physical properties dynamically, while maintaining control over creative output.
Let’s get started!
Instructor: Ronald Fong
Editor: Jasmine Seo