ZOZO's Contact Solver is a high-precision, GPU-accelerated physics engine designed for simulating complex interactions between cloth and solid objects. The resulting simulation is guaranteed to be without penetration, vertex explosions or other glitches common with Blender’s default cloth physics.
Originally developed internally by Japan's largest fashion e-commerce company (ZOZO, Inc.), it is now open-source under the Apache 2.0 license and features a robust contact solver capable of handling over 180 million simultaneous interactions.
Users can access the solver in various ways, including directly inside Blender through a free Blender addon.