

4D Fy
Overview :
4D-fy is a text-to-4D generation method that employs mixed-fraction distillation sampling, combining supervised signals from various pre-trained diffusion models to achieve high-fidelity text-to-4D scene generation. Its approach parameterizes 4D radiance fields with neural representations, utilizing static and dynamic multi-scale hash table features. It then renders images and videos from the representations using volume rendering.
Through mixed-fraction distillation sampling, 4D-fy first optimizes the representation using gradients from a 3D-perceptual text-to-image model (3D-T2I), then refines the appearance by incorporating gradients from a text-to-image model (T2I), and finally enhances the scene's motion by incorporating gradients from a text-to-video model (T2V). 4D-fy can generate 4D scenes with captivating appearance, 3D structure, and movement.
Target Users :
Generates high-fidelity 4D scenes from text descriptions, suitable for film visual effects, virtual reality, and other fields.
Use Cases
A film effects company uses 4D-fy to generate a fire scene.
A virtual reality game developer uses 4D-fy to generate dynamic virtual environments.
An advertising agency uses 4D-fy to create product showcases with captivating appearance and motion effects.
Features
Achieves high-fidelity text-to-4D generation using mixed-fraction distillation sampling.
Parameterizes 4D radiance fields using neural representations, with static and dynamic multi-scale hash table features.
Renders images and videos, leveraging supervised signals from various pre-trained diffusion models.
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