Using C4D R15.
Made an outline of a rock from a background wall picture using bezier spline.
Extruded it and tried to sculpt it into the shape I want, then insert it into the "wall" I made with a cube.
Only the extruded surfaces are "sculptable (?)", not the large spline surface.
Have I missed a step?
Also, if there is another way to accomplish this, I am open to suggestion.
Thanks to all.