Re: Black edges around objects when I enable motion blur!? Help!

Hey,

Lars' reply is exactly right, although I think it might be more technical than you're looking for. I may be wrong, but I assume that you're rendering the white background straight out of Maya. In my experience, Maya's native render compositor isn't too good with transparency, especially when you're rendering on a background that is any other color than black, and that could be why the semi-transparent edges in your motion blur are getting black halos. Try rendering out your motion blurred image on a black background with an alpha as a .tga or .tiff or some other image file that embeds the alpha channel within itself. Then take your image into photoshop or After Effects and try placing it over a white background - see if the compositing works correctly there. My guess is it will. If this is too simple an answer, definately go with Lars - he articulated it well.

Best,

Ben