![Niall on Twitter: "I really didn't want to hand edit normals, so I came up with this method of using an ID Mask to manipulate the normals in the shader. All of Niall on Twitter: "I really didn't want to hand edit normals, so I came up with this method of using an ID Mask to manipulate the normals in the shader. All of](https://pbs.twimg.com/ext_tw_video_thumb/1470397011442778112/pu/img/Dxn5NcXCCvMEqnm5.jpg:large)
Niall on Twitter: "I really didn't want to hand edit normals, so I came up with this method of using an ID Mask to manipulate the normals in the shader. All of
Material ID Mask with transparent shader - Compositing and Post Processing - Blender Artists Community
![cycles render engine - How to output ID masks as seperate files for compositing? - Blender Stack Exchange cycles render engine - How to output ID masks as seperate files for compositing? - Blender Stack Exchange](https://i.stack.imgur.com/marz8.png)