The built-in nodes already provide "Individual Triangles Object", "Lines" and "Points", these custom nodes are :
Make Triangles Fan Object
Make Triangle Strip Object
Feed the positions port 3D Points values.
Note that the built-in node for Individual Triangles has Cubic or Spherical Textures mapping, these do not. So kinda experimental.
Put these .c modules in your Vuo Modules folder.
You can search the node library for these nodes by typing
License : MIT
Original code by ©Kosada Incorporated, released under MIT License, modified by Bodysoulspirit.
This code may be modified and distributed under the terms of the MIT License.
For more information, see https://vuo.org/license.