MVPaint: Synchronized Multi-View Diffusion for Painting Anything 3D
Authors: name: Wei Cheng, name: Juncheng Mu, name: Xianfang Zeng, name: Xin Chen, name: Anqi Pang, name: Chi Zhang, name: Zhibin Wang, name: Bin Fu, name: Gang Yu, name: Ziwei Liu, name: Liang Pan

Texturing is a crucial step in the 3D asset production workflow, which
enhances the visual appeal and diversity of 3D assets. Despite recent
advancements in Text-to-Texture (T2T) generation, existing methods often yield
subpar results, primarily due to local discontinuities, inconsistencies across
multiple views, and their heavy dependence on UV unwrapping outcomes. To tackle
these challenges, we propose a novel generation-refinement 3D texturing
framework called MVPaint, which can generate high-resolution, seamless textures
while emphasizing multi-view consistency. MVPaint mainly consists of three key
modules. 1) Synchronized Multi-view Generation (SMG). Given a 3D mesh model,
MVPaint first simultaneously generates multi-view images by employing an SMG
model, which leads to coarse texturing results with unpainted parts due to
missing observations. 2) Spatial-aware 3D Inpainting (S3I). To ensure complete
3D texturing, we introduce the S3I method, specifically designed to effectively
texture previously unobserved areas. 3) UV Refinement (UVR). Furthermore,
MVPaint employs a UVR module to improve the texture quality in the UV space,
which first performs a UV-space Super-Resolution, followed by a Spatial-aware
Seam-Smoothing algorithm for revising spatial texturing discontinuities caused
by UV unwrapping. Moreover, we establish two T2T evaluation benchmarks: the
Objaverse T2T benchmark and the GSO T2T benchmark, based on selected
high-quality 3D meshes from the Objaverse dataset and the entire GSO dataset,
respectively. Extensive experimental results demonstrate that MVPaint surpasses
existing state-of-the-art methods. Notably, MVPaint could generate
high-fidelity textures with minimal Janus issues and highly enhanced cross-view
consistency.