That's how a scene configuration in amethyst might look like (we might use another file format).

scene.json

{
  "meshes": {
    "cube": "obj",
    "sphere": "fbx"
  },
  
  "textures": {
    "grass": "png",
    "brick": "jpg"
  },

  "renderables": {
    "brick_sphere": ["sphere", "brick", "white", "white", "1.0"],
  },

  "entities": {
    "my_sphere": {
      "renderable": "brick_sphere"
    }
  }
}