Hello, I am trying to mask an object in my composition, but whenever I create a solid layer and turn into 3d, it creates a weird glitch with the background image. 
Please help, I want to remove that particle looking affect on the solid.
Use the picture links below to help yourself understand the problem.
1. http://i.imgur.com/Wp4Zy3Y.jpg?1
2.http://i.imgur.com/J89h8Gh.jpg?1