SoNormal

InventorModule

genre	InventorNodesAutomatic
author	Silicon Graphics Inc
package	MeVisLab/Standard
definition	inventor.def

Purpose

The node SoNormal defines a set of 3D surface normal vectors to be used by vertex-based shape nodes that follow it in the scene graph. This node does not produce a visible result during rendering; it merely replaces the current normals in the rendering state for subsequent nodes to utilize. This node contains a single multiple-valued field that holds the normal vectors.

Surface normals are essential for computing lighting when the Phong lighting model is employed. Most vertex-based shapes that use normals can compute default normals if none are specified, depending on the current normal binding.

Windows

Default Panel

Output Fields

self

name: self, type: SoNode

Parameter Fields

Visible Fields

Vector

name: vector, type: Vector3List, default: [  ]

Sets the surface normal vectors.