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TPA-Net: Generate a Dataset for Text to Physics-Based Animation (arxiv.org)
1 point by naillo on Dec 6, 2022 | hide | past | pdf | discuss on HN

In plain words: A system automatically builds a set of text descriptions paired with 3D physics simulations of solids and fluids, rendered as videos from different angles. Unlike usual text-to-video training data, which ignores physical laws and shows glitches, these clips follow physics like bending, breaking, and splashing.

Abstract · TPA-Net: Generate A Dataset for Text to Physics-based Animation

Recent breakthroughs in Vision-Language (V&L) joint research have achieved remarkable results in various text-driven tasks. High-quality Text-to-video (T2V), a task that has been long considered mission-impossible, was proven feasible with reasonably good results in latest works. However, the resulting videos often have undesired artifacts largely because the system is purely data-driven and agnostic to the physical laws. To tackle this issue and further push T2V towards high-level physical realism, we present an autonomous data generation technique and a dataset, which intend to narrow the gap with a large number of multi-modal, 3D Text-to-Video/Simulation (T2V/S) data. In the dataset, we provide high-resolution 3D physical simulations for both solids and fluids, along with textual descriptions of the physical phenomena. We take advantage of state-of-the-art physical simulation methods (i) Incremental Potential Contact (IPC) and (ii) Material Point Method (MPM) to simulate diverse scenarios, including elastic deformations, material fractures, collisions, turbulence, etc. Additionally, high-quality, multi-view rendering videos are supplied for the benefit of T2V, Neural Radiance Fields (NeRF), and other communities. This work is the first step towards fully automated Text-to-Video/Simulation (T2V/S). Live examples and subsequent work are at https://sites.google.com/view/tpa-net.

Yuxing Qiu, Feng Gao, Minchen Li, Govind Thattai, Yin Yang, Chenfanfu Jiang
arXiv:2211.13887 · cs.AI, cs.CL, cs.CV, cs.GR, eess.IV · submitted Nov 25, 2022
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