When loading additive scenes, how should light probes and reflection probes be handled to ensure consistency?

• A. Propagate light probes and reflection probes consistently across scenes.
• B. Ignore probes when loading additive scenes.
• C. Only use reflection probes; light probes are unnecessary.
• D. Probes must be rebuilt each time you load a scene.

Answer: (A)

When multiple scenes are loaded additively, the lighting and reflections need to feel continuous across everything that’s loaded. Light probes store how light bounces in the scene for dynamic objects, and reflection probes capture how the environment should reflect. Propagating both across scenes makes sure every part of the combined environment uses the same probe data, preventing seams where one scene’s shading or reflections would otherwise differ from another’s. Ignoring probes, relying only on reflection probes, or rebuilding probes each time would introduce inconsistencies, extra overhead, or missing ambient lighting. By propagating probes, you maintain consistent lighting and reflections throughout the additive scene set.