Hello All, I would like to make an illustration which has a semi-transparent surface rendering for a large cavity. I just want the suface to cover the cavity not the entire protein (which will most likely exist as a ribbon drawing). Is there a way to set a boundary for a surface drawing? By that, I mean pick a point within the cavity and set a radius to draw a solvent accessible surface and thusly only those points falling within the radius are shown. Seems simple enough, but I haven't quite figured it out as of yet.
Thanks in advance for any advise. Todd
