Split and Filter Mesh

One cause of a mesh being self-intersecting could be fragmented mesh pieces (an example of one of these fragmented pieces is shown below). To fix this, you can use the Split Mesh and Filter Mesh List blocks.

Split Mesh

The Split Mesh splits a mesh into multiple mesh objects. You can use it for separating disconnected parts from a larger mesh. Even if you can’t see the fragments, they may appear when using the Split Mesh block.

Note: To extract the meshes, you must open the Properties panel in the Block Details. The largest mesh is always at the top of the list.

Filter Mesh List

The Filter Mesh List filters the Split Mesh results, based on a volume, to remove small disconnected pieces from the mesh. Its primary use is for minor mesh fixing. In the example below, the starting mesh had floating meshes, but when the Filter Mesh List was used, it removed them with only the large mesh remaining.