Here's what I am trying to do: In M8, I have a video layer and above it a black and white grid created in PHSP. I am projecting onto a faceted church ceiling with ribs (the black lines of the grid) and insert panels, on which I want the video to play. Figured it all out - used the mesh in MM to follow the "ribs" and the video looks great on the panels. What iI can't figure out is why there is a very thin line of the background video around the whole warped video. When the black bars reach the end of the overall frame you can see the underlying image. One pixel's worth probably. Very slight but distracting. I remade the PHSP grid, saved a jpeg and png etc etc with no change. The only thing that got rid of the while line was to expand the grid as little as possible in M8. The the control over size is coarse and naturally it changes my mesh alignment.
Any ideas about this? Thanks so much for any advice - John