The Surface Normal node is part of the Surface Shading set of nodes. It converts the output of a Surface Map node into a directional normal map, which is the same kind of output that is given by the Normal Map node in the legacy Light Shading system, and which is used by the Light Shader and Tone Shader nodes to create light shading effects.
Using the Surface Map and Surface Normal node instead of the Normal Map node allows you to use the more detailed height maps and height mattes from the Volume Objects with the Light and Tone shaders, as well as to animate the surface definition on a rig.
|Name||The name of the node as it appears in the Node View and the Timeline view. Each node must have a name that is unique to its containing group.|
|Surface Normal Quality||
The surface normal quality provides three levels of quality when calculating and rendering the normal: