Quick update for people having roof problems:
I noticed the same behavior (even after fixing Houdini issues with roof arbitrary shaped geo) that was previously mentioned where the Small City arbitrary shaped roofs work fine after processing the rules for it with the Small City point cloud, but don’t work for our own cities.
Looking at the output log I saw this when rerunning only the arbitrary roof geo rule, which is the one called “Small_CIty_FULL_buildings_geo”:
PointCloudLog: Warning: No Values found for Key Building_ID
So it seems it’s not finding the right id for Building_ID in the CITY_buildings point cloud when you do your own generation. Will update when I figure out a fix.