I created a mesh of an underwater object (coral) and want to select only that part of the mesh that is part of the object (living coral) and not the underground (seabed). When I explode the mesh into various smaller meshes, it is often the case that those small meshes consist of part-object (coral) /part-underground (seabed). To only get the object I want, I can split the meshes manually by using “delete mesh faces” and then use “split disjoint meshes” - yet this is quite a lot of work and I am looking for a more simple solution. I added a picture for clarification.
Could I select the object I want (living coral) through for example colour or through texture? Or through the creation of a silhouette? Or any other suggestions?
Thank you all!