4Director: Controlling Video World Models with Rigid 3D Geometry
A video world model that uses rigid 3D geometry to control camera and object motion from a single image.
wei-cao
A video world model that uses rigid 3D geometry to control camera and object motion from a single image.
A flexible video tokenizer that puts semantics in early tokens for efficient, high-fidelity autoregressive video generation.
A rotation-preconditioned KV cache codec that jointly quantizes coordinate triplets via an octahedral map, achieving state-of-the-art compression across text, video, and audio …
Current 3D content generation builds on generative models that output RGB images. Modern graphics pipelines, however, require physically-based rendering (PBR) material properties. …