Draping an image onto a surface

I can see that Rhino 6 now has an environment editor, can I use this to drape an aerial image (with associated world file) onto a topographical surface/mesh? I know about the RhinoTerrain plugin, do I still need this or can I now do a drape directly in Rhino 6?

That’s about texturing, not “environment” editing, which you can do in V5, V6, etc. You would probably use the Planar mapping type to ‘drape’ an aerial image over a topo mesh.