Partial fix for point light cast writing depth outside of point light radius.
Partial fix for point light cast writing depth outside of point light radius.

CesiumGS/cesium,kaktus40/cesium,jasonbeverage/cesium,NaderCHASER/cesium,jasonbeverage/cesium,geoscan/cesium,oterral/cesium,CesiumGS/cesium,soceur/cesium,CesiumGS/cesium,progsung/cesium,josh-bernstein/cesium,CesiumGS/cesium,soceur/cesium,CesiumGS/cesium,oterral/cesium,likangning93/cesium,AnalyticalGraphicsInc/cesium,soceur/cesium,hodbauer/cesium,YonatanKra/cesium,oterral/cesium,AnalyticalGraphicsInc/cesium,likangning93/cesium,progsung/cesium,YonatanKra/cesium,YonatanKra/cesium,hodbauer/cesium,geoscan/cesium,josh-bernstein/cesium,likangning93/cesium,YonatanKra/cesium,likangning93/cesium,likangning93/cesium,hodbauer/cesium,NaderCHASER/cesium,kaktus40/cesium,NaderCHASER/cesium