This is motherfucking file.
Open animoutfit.php with valid parameters to generate ANIMATED image. For example:
animoutfit.php?id=128&addons=3&head=123&body=12&legs=23&feet=31&mount=0&direction=2

Open outfit.php with valid parameters to generate STATIC image [idle]. For example:
outfit.php?id=128&addons=3&head=123&body=12&legs=23&feet=31&mount=0&direction=2

If you are admin and you have installed new images folder, you need to generate cache: cacheGenerator.php?password=YOUR_PASSWORD