H18灯光实例化Hou18InstanceLights

Instanced lights in Houdini 18. For more information see:
deborahrfowler.com/HoudiniResources/LightsSolaris-InstancedLights.html
谷歌翻译：
Houdini 18中的实例照明。有关更多信息，请参见：
deborahrfowler.com/HoudiniResources/LightsSolaris-InstancedLights.html