PhysiGen: Action-Conditional World Models for Interactive E-Commerce Visualization

Traditional e-commerce visualization relies on static 3D spins or pre-rendered videos, which fail to convey material properties such as stiffness, flexibility, or sole compression. This lack of tactile feedback creates a "trust gap" for online buyers. In this paper, we introduce PhysiGen, a "What If?" viewer that allows users to apply virtual forces to product models. Leveraging a novel Action-Conditional Reconstruction technique, our system utilizes a physics-informed world model to generate short video sequences of deformation (e.g., shoe twisting, foam compression) based on user input. We demonstrate that this approach significantly increases buyer confidence by bridging the "tactile gap" in online shopping, achieving a 45% increase in user engagement compared to static viewers.