Layout Cache

File: src/layout/core/layout_cache.rs

LayoutCache stores:

cached intrinsic sizes
dirty flags
per-depth entity lists

Best Practices

avoid mutating UNode, ULayout, or USelf every frame without a real reason
prefer state-driven updates
avoid unnecessary hierarchy churn

When To Extend It

when node counts grow much larger
when dirty ratios stay high most of the time

cargo test -p univis_ui_engine --lib layout::core::layout_cache