I have a terrain in Blender (see red inset) and in the material node setup for that terrain I have separated an area with certain geometry features (height, orientation). Its the white area in the picture. (Nodes used : Geometry, Mapping, Colorramp)
My question is if there is a way to select the vertices in the mesh that correspond only to the white area, in order to create a Vertex Group. Now, if I create a vertex group directly from that material it obviously includes de vertices of the black area as well.
Thanks in advance ! Lynxx
Thanks Serge and Ray for your comments. I think I am closer to the solution but I cant seem to find the last step.
I have baked the texture and used it as a mask in the Vertex Weight Mix modifier, but I still not clear on how to select only the vertices with a weight of 1 (red ones on the left in the image bellow).
When I go into edit mode, to assign vertices, all are selected not only the ones corresponding to the red area. I have even applied a Mask Modifier as show below, to mask the blue area, but again when I go into edit mode the whole mesh appears not only the red part. So I cant select only the red vertices.
Just to clarify, I want to select only the vertices (red part of Weight Paint), to assign them to a new Vertex group, so I can then assign a material to only that part of the mesh.