ecs-fundamentals-transformusageflags

What problem does it solve?

It prevents silent, hard-to-debug DOTS baking mistakes where entities get the wrong transform components, causing them to not move, flicker, waste memory, or be overwritten by the default transform pipeline.

Core Features & Use Cases

• TransformUsageFlags selection at every GetEntity(): Explains when to use None, Renderable, Dynamic, and ManualOverride so baked entity archetypes match runtime needs.
• Silent failure mode diagnostics: Covers the “no exception, but wrong behavior” symptoms such as entities not appearing in transform-driven queries or not moving.
• Safe ManualOverride pattern: Documents the required pairing of TransformUsageFlags.ManualOverride with an owning driver component using [WriteGroup(typeof(LocalToWorld))] to avoid last-writer-wins corruption.
• Performance and archetype hygiene: Describes how incorrect flags create archetype bloat (e.g., unnecessary LocalTransform and Parent) and how to reduce TransformSystemGroup work by choosing appropriately.

Quick Start

Use this skill to audit each Baker<T> and ensure every GetEntity() call uses the correct TransformUsageFlags, with ManualOverride paired with [WriteGroup(typeof(LocalToWorld))] and an explicit LocalToWorld write.