Hi. I am rendering out a character with fur using mental ray. Using the same settings (as far as i can tell) i sometimes get a nice render out such as the example if the character on the left in the picture i have included. Sometimes however i seem to get ghastly lines around the fur, like the example on the right of the picture. i have about 15 shots of the old man and 8 or so have this problem. I rendered both out with premultiply on and imported into after effects with premultiply alpha channel settings. Has anyone any ideas? I have also posted this in rendering section. please don't kill me.