Cull Ground Mesh - [source code]
Cut building footprints out of a ground mesh to make an analysis ground mesh. The ground is quad-remeshed to Target Face Count (or taken as wired when that is 0), then every vertex under a building is removed together with the faces that use it.
Input
| Name | Nickname | Description | Type |
|---|---|---|---|
| Building Mesh | Bldgs | Building meshes (joined internally). A ground vertex is culled when the vertical line through it pierces one of these faces, so the roofs are what matter; open-bottomed footprint extrusions are fine. | Mesh |
| Ground Mesh | Ground | Ground mesh(es) to cull. Remeshed to Target Face Count first, or culled exactly as wired when that is 0. | Mesh |
| Target Face Count | Target | Quad count QuadRemesh aims for before culling. 0 skips the remesh and culls the ground mesh as wired, so a hand-built grid keeps its faces. Default: 50000. | Integer |
| Triangulate | Tri | Shrink quads at the cut edge into triangles instead of dropping them, so the cut-out hugs the footprint. Off removes every face that touched a culled vertex. Does not triangulate the rest of the mesh. Default: true. | Boolean |
Output
| Name | Nickname | Description | Type |
|---|---|---|---|
| Culled Mesh | Mesh | Ground mesh with building footprints removed. | Mesh |