arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2410.06985cs.CVcs.GR

基于协同控制的多视角一致性PBR纹理联合生成

Jointly Generating Multi-view Consistent PBR Textures using Collaborative Control

Unity Technologies(Unity科技公司)

Shimon Vainer, Konstantin Kutsy, Dante De Nigris, Ciara Rowles, Slava Elizarov, Simon Donné

AI总结:

针对图像扩散模型的多视角一致性难题,提出面向PBR文本生成纹理的协同控制工作流,可直接输出完整PBR栈,通过设计优化实现多视角一致,经消融实验和实际应用验证有效。

摘要:

多视角一致性仍是图像扩散模型面临的一大挑战。即便在预先已知完美几何对应关系的文本生成纹理(Text-to-Texture)问题中,许多方法也无法生成跨视角对齐的预测结果,需要借助复杂的融合方法将结果整合到原始网格上。我们针对PBR文本生成纹理场景下的协同控制(Collaborative Control)工作流探究了这一问题。协同控制直接对包含法线凹凸贴图的PBR图像概率分布建模,据我们所知,它是首个可直接输出完整PBR栈的扩散模型。我们讨论了实现该模型多视角一致性的设计决策,并通过消融实验及实际应用验证了方法的有效性。

英文摘要:

Multi-view consistency remains a challenge for image diffusion models. Even within the Text-to-Texture problem, where perfect geometric correspondences are known a priori, many methods fail to yield aligned predictions across views, necessitating non-trivial fusion methods to incorporate the results onto the original mesh. We explore this issue for a Collaborative Control workflow specifically in PBR Text-to-Texture. Collaborative Control directly models PBR image probability distributions, including normal bump maps; to our knowledge, the only diffusion model to directly output full PBR stacks. We discuss the design decisions involved in making this model multi-view consistent, and demonstrate the effectiveness of our approach in ablation studies, as well as practical applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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