InterPhys: Physics-aware Human Motion Synthesis in a Dynamic Scene
For researchers in computer graphics and animation, this work addresses the problem of generating physically realistic human motions in dynamic scenes, which is a known bottleneck in existing methods.
This paper introduces a physics-aware human motion synthesis framework that models human-object, human-scene, and internal body dynamics, using soft constraints and a continuous distance-based force model to improve physical plausibility. The method sets a new benchmark for physically consistent human motion generation in dynamic scenes.
This paper tackles the problem of physics-aware human motion synthesis in a dynamic scene. Unlike existing works which mainly tend to generate physically unrealistic motions due to limited contact modeling, typically restricted to hands, in this paper, we introduce a physics-aware human motion generation framework that explicitly models the full spectrum of human-related forces, including human-object, human-scene, and internal body dynamics.~Our method imposes soft physical constraints to maintain force and torque balance, ensuring physically grounded motion synthesis. We further propose a novel continuous distance-based force model that generalizes contact modeling to arbitrary surfaces, capturing interactions not only with static environments but also with dynamic, moving objects. Extensive experiments show that our approach significantly improves physical plausibility and generalizes well to complex scenes, setting a new benchmark for physically consistent human motion generation.