Checkpoint System With Modular Model Component Loading

[TPAMI 2025🔥] MagicTime: Time-lapse Video Generation Models as Metamorphic Simulators

Unique: Implements a modular checkpoint system where individual components (base model, Motion Module, Magic Adapters, DreamBooth) are loaded independently and composed at runtime, enabling flexible model combinations without monolithic checkpoint files and reducing memory overhead by loading only necessary components.

vs others: More flexible than monolithic model loading because it allows mixing and matching components (e.g., different base models with different adapters) and enables efficient memory usage by loading only active components, whereas alternatives typically require loading entire pre-composed model stacks.