SceneHI: High-Resolution 3D-Consistent Scene Texturing with Controllable Illumination

SceneHI is a framework that lifts high-resolution, illumina-tion-aware priors from 2D diffusion models to perform 3D texture syn-thesis. It is the first to demonstrate that high-resolution textures, previ-ously limited to 2D synthesis, can be generated directly on 3D objectswithout model fine-tuning or optimization. Designed for complex, multi-object environments, SceneHI uniquely combines 3D-consistency, high-resolution fidelity, and physically plausible baked shadows within a singlegenerative pipeline. To enforce strict geometric coherence, we introducean exact analytical pixel-to-texel mapping that aligns diffusion trajecto-ries across multiple viewpoints. We utilize High-Resolution Latent Tex-tures (HRLTs) as a persistent canvas for gradually denoised textures,while camera views perform the denoising steps in latent pixel space.This ensures a shared base texture that can be subsequently refined tohigh resolution without compromising multi-view consistency. Finally, alight-aware generative pass embeds realistic geometry-consistent shad-ows directly into the atlases, bridging the gap to production workflows.SceneHI achieves high visual fidelity while reducing generation time by80% compared to existing scene-level methods. The code for our work isavailable at https://github.com/Thanos-DB/SceneHI.