Engine reference

These pages describe the implemented engine contracts for contributors and advanced users. Start with the architecture overview, then follow the subsystem that matches the work you are doing.

• Architecture

Threading, ECS, VFS, startup, shutdown, and cross-thread communication.

• Rendering

Render graph, resource management, geometry, materials, and Vulkan lifetime.

• Asset pipeline

Ingest, registry, GPU material binding, and import behavior.

• Memory management

Arena, pool, TLSF, scratch, GPU allocation, and platform rules.

• ZUI system

Retained-mode UI, layout, interaction, docking, and rendering.

• Containers

Arena-backed Array, maps, strings, ownership, and capacity rules.

For proposed work and historical design records, use Design documents. Those pages are not an API or product commitment unless their status says that the work is implemented.