I tried to make an object with only readarchive a rib file(geo1), and another object(geo2)with object merge(merge the geo1 into it) and copy sop. but when I render it didn't work.
I think if when the model read into houdini with readarchive, then it keeps its transform information, so it shoud be work with copy, or anyother operation, but it doesn't work.
does anyone know how to work readarchive file with other houdini operator? or any great idea can do instead low detail objects of hi ones when rendering.
The Copy SOP is evaluated by Houdini, not the renderer. The archive is evaluated by the renderer, not Houdini. So there's no way for those lines to be crossed.
If you want varying LOD at render time, the best way is probable to look into using procedurals.
