diff --git a/libraries/graphics-scripting/src/graphics-scripting/Forward.h b/libraries/graphics-scripting/src/graphics-scripting/Forward.h
index 3d710b41b4..ed8e96a12f 100644
--- a/libraries/graphics-scripting/src/graphics-scripting/Forward.h
+++ b/libraries/graphics-scripting/src/graphics-scripting/Forward.h
@@ -65,6 +65,12 @@ namespace scriptable {
         QString lightmapMap;
         QString scatteringMap;
     };
+
+    /**jsdoc
+     * @typedef {object} Graphics.MaterialLayer
+     * @property {Material} material - This layer's material.
+     * @property {number} priority - The priority of this layer.  If multiple materials are applied to a mesh part, only the highest priority layer is used.
+     */
     class ScriptableMaterialLayer {
     public:
         ScriptableMaterialLayer() {}
diff --git a/libraries/graphics-scripting/src/graphics-scripting/ScriptableModel.h b/libraries/graphics-scripting/src/graphics-scripting/ScriptableModel.h
index a1278132ca..ac0b7b9623 100644
--- a/libraries/graphics-scripting/src/graphics-scripting/ScriptableModel.h
+++ b/libraries/graphics-scripting/src/graphics-scripting/ScriptableModel.h
@@ -21,6 +21,8 @@ namespace scriptable {
      * @property {Uuid} objectID - UUID of corresponding inworld object (if model is associated)
      * @property {number} numMeshes - The number of submeshes contained in the model.
      * @property {Graphics.Mesh[]} meshes - Array of submesh references.
+     * @property {Object.<string, Graphics.MaterialLayer[]>} materialLayers - Map of materials layer lists.  You can look up a material layer list by mesh part number or by material name.
+     * @property {string[]} materialNames - Array of all the material names used by the mesh parts of this model, in order (e.g. materialNames[0] is the name of the first mesh part's material).
      */
 
     class ScriptableModel : public ScriptableModelBase {