删除当前已加载场景的所有运行时数据。
This method deletes the following: baked and real-time lightmaps, Enlighten Realtime Global Illumination metadata, baked output on Lights, and baked and real-time data on instances (index, ST and per-instance UVs).
This method does not delete lightmaps, Reflection Probes, or the Lighting Data Asset. See also: Lightmapping.ClearLightingDataAsset.