Embedding Physical Reasoning into Diffusion-Based Shadow Generation

ArXi:2512.06174v2 Announce Type: replace Generating realistic shadows for inserted objects requires reasoning about scene geometry and illumination. However, most existing methods operate purely in image space, leaving the physical relationship between objects, lighting, and shadows to be learned implicitly, often resulting in misaligned or implausible shadows. We instead ground shadow generation in the physics of shadow formation.