Register the three discovery-driven terrain features on an engine, ordered
correctly against the standard deferred features. Call this once per engine
that should be able to render an authored Terrain — after the engine's
shadow / geometry / lighting features exist, so the anchors resolve (the
editor calls it at the end of its preset for both the Scene and Game engines).
The features stay inert until the scene contains an enabled Terrain.
Register the three discovery-driven terrain features on an engine, ordered correctly against the standard deferred features. Call this once per engine that should be able to render an authored Terrain — after the engine's shadow / geometry / lighting features exist, so the anchors resolve (the editor calls it at the end of its preset for both the Scene and Game engines). The features stay inert until the scene contains an enabled Terrain.