hi I am absolutely new to Unity. I have a point cloud and i use meshlab to create a mesh from it. I export the mesh as an obj file and then i import into unity. The mesh is imported as a prefab. However, it doesn’t contain the Mesh Filter component. I want to access, edit and display the normals of the mesh but I don’t know how to do it. Can you please instruct me? Any help is much appreciated.
If you export raw point cloud, there is no mesh/faces… so unity has nothing to display.
You can reconstruct mesh from points inside MeshLab first, then export that mesh,
but .obj doesnt support vertex colors (if your point cloud had colors), .dae works or .fbx (through blender/3ds max)
Thank you for your reply. I wanted to ask about the color problem either but you already answered. I actually found that the mesh I imported into Unity consists of many parts and each part is a mesh. In other words, Unity doesn’t treat the mesh as a whole but a combination of a bunch of small meshes. Do you know why? Do I have to modify it in Meshlab, not Unity?

If the mesh has more than 65k vertices, it gets split into smaller mesh pieces, you can still use them normally…
If you want to keep it in single mesh, have to reduce mesh vertices before bringing it to unity…