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Fantasia3D: Disentangling Geometry and Appearance for High-quality Text-to-3D Content Creation

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arxiv 2303.13873 v3 pith:E2DTHAOH submitted 2023-03-24 cs.CV cs.AI

classification cs.CVcs.AI
keywords text-to-3dappearancecontentcreationfantasia3dgeometryhigh-qualityrendering
verification ladder T0 review T1 audit T2 compute T3 formal
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Automatic 3D content creation has achieved rapid progress recently due to the availability of pre-trained, large language models and image diffusion models, forming the emerging topic of text-to-3D content creation. Existing text-to-3D methods commonly use implicit scene representations, which couple the geometry and appearance via volume rendering and are suboptimal in terms of recovering finer geometries and achieving photorealistic rendering; consequently, they are less effective for generating high-quality 3D assets. In this work, we propose a new method of Fantasia3D for high-quality text-to-3D content creation. Key to Fantasia3D is the disentangled modeling and learning of geometry and appearance. For geometry learning, we rely on a hybrid scene representation, and propose to encode surface normal extracted from the representation as the input of the image diffusion model. For appearance modeling, we introduce the spatially varying bidirectional reflectance distribution function (BRDF) into the text-to-3D task, and learn the surface material for photorealistic rendering of the generated surface. Our disentangled framework is more compatible with popular graphics engines, supporting relighting, editing, and physical simulation of the generated 3D assets. We conduct thorough experiments that show the advantages of our method over existing ones under different text-to-3D task settings. Project page and source codes: https://fantasia3d.github.io/.

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Cited by 10 Pith papers

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  3. Gaussian Variation Field Diffusion for High-fidelity Video-to-4D Synthesis

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    BoostDream refines coarse feed-forward text-to-3D assets via 3D distillation, multi-view SDS loss from a 2D diffusion model, and prompt-consistent normal maps to produce higher-quality results more efficiently than st...

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