As you can see in the image, I applied the “mesh” command for the whole object. But it was partially applied only in the right centre and I could not apply mesh to other materials.
How can I apply “mesh” to others either? Its command doesn’t work.
The three surfaces under the pyramids are duplicates, I deleted 2 of them.
There are 32 pyramids already meshed, 68 that are still polysurfaces. They are grouped, Ungroup them.
I used SelPolysurface to select the polysurfaces and ran the Mesh command.
I used Unweld 0 to fix the weird normals of the already existing meshes.
In the file below the original surfaces and polysurfaces are hidden.