IntrinsiX: High-Quality PBR Generation using Image Priors

• URL: http://arxiv.org/abs/2504.01008v1
• Date: Tue, 01 Apr 2025 17:47:48 GMT
• Title: IntrinsiX: High-Quality PBR Generation using Image Priors
• Authors: Peter Kocsis, Lukas Höllein, Matthias Nießner,
• Abstract summary: We introduce IntrinsiX, a novel method that generates high-quality intrinsic images from text description.<n>In contrast to existing text-to-image models whose outputs contain baked-in scene lighting, our approach predicts physically-based rendering (PBR) maps.
• Score: 49.90007540430264
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We introduce IntrinsiX, a novel method that generates high-quality intrinsic images from text description. In contrast to existing text-to-image models whose outputs contain baked-in scene lighting, our approach predicts physically-based rendering (PBR) maps. This enables the generated outputs to be used for content creation scenarios in core graphics applications that facilitate re-lighting, editing, and texture generation tasks. In order to train our generator, we exploit strong image priors, and pre-train separate models for each PBR material component (albedo, roughness, metallic, normals). We then align these models with a new cross-intrinsic attention formulation that concatenates key and value features in a consistent fashion. This allows us to exchange information between each output modality and to obtain semantically coherent PBR predictions. To ground each intrinsic component, we propose a rendering loss which provides image-space signals to constrain the model, thus facilitating sharp details also in the output BRDF properties. Our results demonstrate detailed intrinsic generation with strong generalization capabilities that outperforms existing intrinsic image decomposition methods used with generated images by a significant margin. Finally, we show a series of applications, including re-lighting, editing, and text-conditioned room-scale PBR texture generation.

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