Dependency identity

Overview

Workbench needs to decide whether a compiler or render product is still the same and what work must happen after a change.

Mental model

• A hash answers “is this the same thing?”

• Dirty state answers “what work must happen again?”

scene.slang -> project.noise -> entry point -> parameter layout -> pipeline

Changing a UI label can rebuild the Inspector without changing uniform layout. A slider normally uploads values only. Editing project.noise invalidates documents that resolved that import.

The implementation is a persistent Merkle DAG, but that detail follows the concept. See Dependency identity and invalidation.