Accesing information of points in a model to calculate things like gradient etc

[JohnK]

A way of drawing an arrow in right place and direction plus scalable

Draw an arrow in 3d space, start and end of arrow flexible

An alternative to drawing and scaling an arrow. This way the arrow is created from given a start position and a direction https://www.babylonjs-playground.com/#S2R5PN Two arrows one half the length of the other, added boxes to check scaling on total arrow length https://www.babylonjs-playground.com/#S2R5PN#1 Uses Custom Extrusion | Babylon.js Documentation