Renders arrows to visualize an object's vertex normal vectors. Requires that normals have been specified in a custom attribute or have been calculated using computeVertexNormals.

Unlike FaceNormalsHelper, this works with BufferGeometry.


WebGL / helpers var geometry = new v3d.BoxGeometry(10, 10, 10, 2, 2, 2); var material = new v3d.MeshBasicMaterial({ color: 0xff0000 }); var box = new v3d.Mesh(geometry, material); var helper = new v3d.VertexNormalsHelper(box, 2, 0x00ff00, 1); scene.add(box); scene.add(helper);


VertexNormalsHelper(object : Object3D, size : Number, color : Hex, linewidth : Number)

object -- object for which to render vertex normals.
size -- (optional) length of the arrows. Default is 1.
color -- hex color of the arrows. Default is 0xff0000.
linewidth -- (optional) width of the arrow lines. Default is 1.


See the base LineSegments class for common properties.

.matrixAutoUpdate : object

See Object3D.matrixAutoUpdate. Set to false here as the helper is using the objects's matrixWorld.

.object : Object3D

The object for which the vertex normals are being visualized.

.size : Number

Length of the arrows. Default is 1.


See the base LineSegments class for common methods.

.update () : null

Updates the vertex normal preview based on movement of the object.


For more info on how to obtain the source code of this module see this page.