Wood procedural texture can be found here:
A demo can be found here: https://www.babylonjs-playground.com/#K41IJ -
This texture has 2 parameters :
var woodMaterial = new BABYLON.StandardMaterial(name, scene);
var woodTexture = new BABYLON.WoodProceduralTexture(name + "text", 1024, scene);
woodTexture.ampScale = 80.0;
woodMaterial.diffuseTexture = woodTexture;