SURFSUP: Learning Fluid Simulation for Novel Surfaces

• URL: http://arxiv.org/abs/2304.06197v2
• Date: Fri, 8 Sep 2023 18:32:16 GMT
• Title: SURFSUP: Learning Fluid Simulation for Novel Surfaces
• Authors: Arjun Mani, Ishaan Preetam Chandratreya, Elliot Creager, Carl Vondrick, Richard Zemel
• Abstract summary: We introduce SURFSUP, a framework that represents objects implicitly using signed distance functions (SDFs) This continuous representation of geometry enables more accurate simulation of fluid-object interactions over long time periods. We show we can invert our model to design simple objects to manipulate fluid flow.
• Score: 28.90974131540538
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Modeling the mechanics of fluid in complex scenes is vital to applications in design, graphics, and robotics. Learning-based methods provide fast and differentiable fluid simulators, however most prior work is unable to accurately model how fluids interact with genuinely novel surfaces not seen during training. We introduce SURFSUP, a framework that represents objects implicitly using signed distance functions (SDFs), rather than an explicit representation of meshes or particles. This continuous representation of geometry enables more accurate simulation of fluid-object interactions over long time periods while simultaneously making computation more efficient. Moreover, SURFSUP trained on simple shape primitives generalizes considerably out-of-distribution, even to complex real-world scenes and objects. Finally, we show we can invert our model to design simple objects to manipulate fluid flow.

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