generator.diskcache

A Generator's disk cache and baked snapshot: the outputs a graph declares diskCache on, loaded from the world's cache, the writes a commit makes for them, and the snapshot an earlier engine stored with the scene.

One part of the Generator component. ~.generator installs it on a Generator instance's context table, gen, which the component makes once per instance: the part keeps its shared state and the operations other parts call as fields of gen, and what only it reads as locals of its install function, so every instance holds its own.