First step to supporting GLTF

Unity/Thing.cs

@@ -2,6 +2,9 @@
 using System.Collections;
 using UnityEngine;
 using UnityEngine.Networking;
+#if GLTF
+using GLTFast;
+#endif
 
 namespace RoboidControl.Unity {
 
@@ -118,7 +121,8 @@ namespace RoboidControl.Unity {
                     string extension = core.modelUrl[core.modelUrl.LastIndexOf(".")..];
                     if (extension == ".jpg" || extension == ".png")
                         StartCoroutine(LoadJPG());
-
+                    else if (extension == ".gltf" || extension == ".glb")
+                        ProcessGltfModel(core);
                     break;
                 case PoseMsg.Id:
                     Debug.Log($"{this.core.id} Handle Pose");
@@ -162,6 +166,88 @@ namespace RoboidControl.Unity {
             }
         }
 
+        bool loadingModel = false;
+        private async void ProcessGltfModel(RoboidControl.Thing coreThing) {
+#if GLTF            
+            if (!loadingModel) {
+                loadingModel = true;
+
+                Debug.Log("Loading GLTF model from :" + coreThing.modelUrl);
+                GltfImport gltfImport = new GltfImport();
+                bool success = await gltfImport.Load(coreThing.modelUrl);
+                if (success) {
+                    Transform parentTransform = this.transform;
+
+                    Thing[] things = FindObjectsOfType<Thing>();
+                    Thing parentThing = null;
+                    foreach (Thing thing in things) {
+                        if (thing.core.id == coreThing.id) {
+                            parentTransform = thing.transform;
+                            parentThing = thing;
+                        }
+                    }
+                    await gltfImport.InstantiateMainSceneAsync(parentTransform);
+                    SkinnedMeshRenderer[] meshRenderers = parentTransform.GetComponentsInChildren<SkinnedMeshRenderer>();
+
+#if pHUMANOID4
+                if (parentThing.objectType == 7) {
+                    HumanoidControl hc = parentThing.gameObject.GetComponent<HumanoidControl>();
+                    if (hc == null)
+                        hc = parentThing.gameObject.AddComponent<HumanoidControl>();
+
+                    foreach (SkinnedMeshRenderer meshRenderer in meshRenderers) {
+                        if (meshRenderer.rootBone != null) {
+                            Debug.Log("Found a skinned mesh with bones");
+                            hc.RetrieveBonesFrom(meshRenderer.rootBone);
+                            break;
+                        }
+                    }
+                }
+#endif
+                    parentTransform.localScale = Vector3.one;
+                    if (meshRenderers.Length > 0) {
+                        foreach (SkinnedMeshRenderer meshRenderer in meshRenderers) {
+                            if (meshRenderer.rootBone != null) {
+                                Debug.Log("Found a skinned mesh with bones");
+                                ScanForThings(meshRenderer.rootBone);
+                                break;
+                            }
+                        }
+                    }
+                    else {
+                        ScanForThings(parentTransform);
+                    }
+                }
+                else {
+                    this.transform.localScale = Vector3.one * 1;
+                }
+            }
+            loadingModel = true;
+#endif            
+        }
+
+        private void ScanForThings(Transform rootTransform) {
+            // Thing[] thingArray = allThings.ToArray();
+
+            // for (int thingIx = 0; thingIx < thingArray.Length; thingIx++) {
+            //     Thing thing = thingArray[thingIx];
+            //     GameObject foundObj = FindThingByName(thing, rootTransform);
+            //     if (foundObj != null && foundObj != thing.gameObject) {
+            //         Thing foundThing = foundObj.GetComponent<Thing>();
+            //         if (foundThing == null) {
+            //             allThings.Remove(thing);
+
+            //             foundThing = foundObj.AddComponent<Thing>();
+            //             foundThing.networkId = thing.networkId;
+            //             foundThing.objectId = thing.objectId;
+            //             allThings.Add(foundThing);
+            //             Destroy(thing.gameObject);
+            //         }
+            //     }
+            // }
+        }
+
+
         /// <summary>
         /// Handle a Pose event
         /// </summary>