How to make a zipper

There are less the 6 pants assets from Daz that can open at the zipper like a real pair of pants. Most of the artists who make clothing, don't make morphs that allow you to "open" or "unzip" them... So when you want to get a close up shot that doesn't look stupid, you have to take it into photoshop, find an image of a zipper online, and work it in there with some masking, color correction, fake shadows and repainting area's of the pants back in.

I put the zipper asset from google, the original image, and the finished image in here. Hope this is cool for someone out there.