The provided text explains the internal state machine that manages ViewTransitions within the Blink rendering engine, detailing how it orchestrates smooth visual shifts during DOM updates. This mechanism operates through several distinct phases, starting with a capture phase where the engine identifies tagged elements and snapshots their initial state. Once captured, the system triggers a DOM update callback, pausing rendering to ensure changes are applied before moving into the animation phase where old and new views are cross-faded. The documentation emphasizes the coordination between the main-thread lifecycle and the compositor, ensuring that style and layout calculations are synchronized with GPU-backed animations. To maintain system stability, the engine incorporates error handling and timeout guards that automatically abort transitions if they exceed time limits or encounter unsupported elements. Ultimately, this architecture ensures that web transitions remain performant and predictable by carefully managing when snapshots are taken and when actual rendering resumes.