Notice that the special effects artists have darkened the corner of the room. They have brushed out a lot of the shadows on the floor so that they could isolate Odo's shadow more efficiently. They also darkened Uhura's shadow so that it would lend credence to Odo's. I believe that the DS9 set designers only built one k7 (the space station) set for the filming of the DS9 episode. The only set which is used on K7 which has the principles of DS9 without compositing scenes from Star Trek is the back wall of the bar as seen here. All other sets are composites or from Star Trek. This edit was extremely short, only lasting 47 frames (a little over a second and a half). It is a good thing that the edit is so short. This would be a difficult composite. Since the foreground characters pass in front of the new footage, the old background had to be carefully masked out. Unlike the following shot where the footage is relatively static, this is much more dynamic. The mask must be altered with each frame to follow the movements of the characters in the old footage. The special effects artists did a great job as there are no "jitters" (the tell-tale bouncing of a moving mask). As an amusing side bar, if Odo really was in the room at this time, he would have bumped into Kirk and Spock. In the original this is where Kirk first showed Chekov the Quatrotriticale as they passed each other at the door. The edit cut just as the door closed behind Kirk. J. Trent Adams is a new media producer specializing in direct-to-digital video production. He designed and continues to produce the first nightly video webcast.