How to Paint Doors

My son is a house painter, a recent job required some closet doors to be painted but of course there was no where to paint them so he set up a spray booth in my driveway using an existing portable carport and plastic, the doors are set on 2x4's to get them off the ground and connected at the top with scrap trim boards and sheetrock screws, using a sprayer adn oilbased paint resluted in a glass like finish.  Sorry I didn't think about doing an "ible" until the job was almost finished (side note) the doors were all sanded and puttied before they arrived here.  hhhmmm wont let me add notes to the pics.. will try again later