Handle case where no children are visible because the camera is not inside their request volumes
Handle case where no children are visible because the camera is not inside their request volumes

geoscan/cesium,likangning93/cesium,kiselev-dv/cesium,soceur/cesium,aelatgt/cesium,soceur/cesium,CesiumGS/cesium,emackey/cesium,AnimatedRNG/cesium,geoscan/cesium,likangning93/cesium,AnalyticalGraphicsInc/cesium,aelatgt/cesium,CesiumGS/cesium,wallw-bits/cesium,YonatanKra/cesium,likangning93/cesium,josh-bernstein/cesium,oterral/cesium,hodbauer/cesium,AnimatedRNG/cesium,CesiumGS/cesium,wallw-bits/cesium,progsung/cesium,jason-crow/cesium,hodbauer/cesium,wallw-bits/cesium,jason-crow/cesium,wallw-bits/cesium,denverpierce/cesium,ggetz/cesium,YonatanKra/cesium,progsung/cesium,AnimatedRNG/cesium,omh1280/cesium,hodbauer/cesium,kiselev-dv/cesium,NaderCHASER/cesium,emackey/cesium,AnalyticalGraphicsInc/cesium,kaktus40/cesium,likangning93/cesium,ggetz/cesium,soceur/cesium,denverpierce/cesium,aelatgt/cesium,AnimatedRNG/cesium,ggetz/cesium,oterral/cesium,omh1280/cesium,josh-bernstein/cesium,emackey/cesium,omh1280/cesium,NaderCHASER/cesium,denverpierce/cesium,omh1280/cesium,kiselev-dv/cesium,YonatanKra/cesium,likangning93/cesium,jasonbeverage/cesium,kiselev-dv/cesium,CesiumGS/cesium,YonatanKra/cesium,oterral/cesium,jason-crow/cesium,denverpierce/cesium,CesiumGS/cesium,ggetz/cesium,kaktus40/cesium,jasonbeverage/cesium,aelatgt/cesium,jason-crow/cesium,emackey/cesium,NaderCHASER/cesium