New to blender. Using 2.90. I have a mesh created from Photogrammetry, it’s a scan of an irregular shaped boulder (stone). I’m trying to cut through the mesh using the knife project tool and bridge the edges, so the cut path remains ‘solid’. All the tutorials I’ve seen for using the knife project tool suggest selecting the edges, then use the bridge edge loops command. The problem is that there are too many edges to manually select. Is there a way to do this automatically? Or am I going about this wrong?
Thanks for any help.
NOTE FOR SOLUTION IT WAS A COMBINATION OF THE 3 REPLIES BELOW