Cell Shading Material
// Cell (toon) shading material
const cellMaterial = new BABYLON.CellMaterial("cell", scene);
cellMaterial.diffuseColor = new BABYLON.Color3(0.8, 0.4, 0.4);
cellMaterial.computeHighLevel = true;
cellMaterial.diffuseTexture = new BABYLON.Texture("textures/amiga.jpg", scene);