Orthanc
Shipwright
I was afraid this would be the case, POV-Ray (what I use) isn't compatible with 3DS Max, my advice earlier was in general terms since I guesed that the program you use is 3DS. I'm guessing you want to see my files to see how I managed to make the sails flap in the wind, if that's the case my suggestion is that you have the middle of the sail expand away from where your 'wind' is blowing, you can probably do this by actually enlarging the sail object. Its best to have the first half of the animation make the sail expand, and then the next half have the sail return to its original size. Hope this helps, and I hope I understood your question correctly.