More robust panoramaToCubeMap
More robust panoramaToCubeMap

uooo/qtek,uooo/qtek,pissang/qtek,uooo/qtek,zhangwei001/qtek,pissang/claygl,JDReutt/qtek,zhangwei001/qtek,pissang/qtek,JDReutt/qtek,pissang/claygl,zhangwei001/qtek,JDReutt/qtek,pissang/claygl