Games Have Never Simulated Clothing Like This Before
•November 16, 2025
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Why It Matters
By delivering real‑time, physically accurate cloth simulation, the technique lets developers create and monetize highly realistic garments, raising visual immersion and opening new revenue streams for virtual fashion.
Summary
The video spotlights a recent research breakthrough that finally gives video‑game developers a reliable way to simulate clothing, especially complex knots and ties, that has long plagued the industry. Traditional pipelines often produce garments that intersect, disappear, or look unrealistic, undermining both visual fidelity and in‑game commerce. The new method promises a physics‑based solution that works in real time, eliminating the need for costly hand‑tuning or AI‑driven hacks.
The core of the technique treats each strand of fabric as a Bézier‑curve “straw,” which can be smoothly bent and twisted. A bounding‑volume hierarchy (BVH) performs broad‑phase culling, while continuous collision detection predicts and resolves inter‑cloth intersections before they occur. This combination dramatically reduces computational load, allowing high‑resolution meshes with hundreds of thousands of vertices to be simulated without artifacts, all on a standard GPU instance.
The presenter demonstrates the system with a scarf knot that initially looks crude, then instantly snaps into a realistic shape after the physics simulation runs. He notes that the algorithm runs in real time on a Lambda GPU, requires no AI, and delivers artistic control across a wide variety of garments. The paper’s jargon‑heavy description is distilled into an accessible explanation, emphasizing the “straw” abstraction and the clever use of BVH to limit precise collision checks to only the most relevant regions.
If adopted widely, this approach could transform how games handle virtual apparel, enabling developers to sell detailed clothing items with confidence that they will drape and move convincingly. While the method still depends on sufficiently detailed mesh models and some external tooling for template creation, its ability to handle high‑resolution cloth in real time positions it as a potential new standard for interactive garment simulation.
Original Description
❤️ Check out Lambda here and sign up for their GPU Cloud: https://lambda.ai/papers
Guide:
Rent one of their GPUs with over 16GB of VRAM
Open a terminal
Just get Ollama with this command - https://ollama.com/download/linux
Then run ollama run gpt-oss:120b - https://ollama.com/library/gpt-oss:120b
📝 The paper "Fast Physics-Based Modeling of Knots and Ties Using Templates" is available here:
Sources:
📝 My paper on simulations that look almost like reality is available for free here:
Or this is the orig. Nature Physics link with clickable citations:
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