模型预览和旋转

Assets/Scripts/UI/Common/ModelRenderImage.cs

@@ -18,7 +18,7 @@ namespace NBF
         int _width;
         int _height;
         bool _cacheTexture;
-        float _rotating;
+        Vector3 _rotating;
 
         const int RENDER_LAYER = 0;
         const int HIDDEN_LAYER = 10;
@@ -187,7 +187,7 @@ namespace NBF
             return uvRect;
         }
 
-        public void LoadModel(string model)
+        public GameObject LoadModel(string model)
         {
             this.UnloadModel();
 
@@ -195,6 +195,11 @@ namespace NBF
             GameObject go = ((GameObject)Object.Instantiate(prefab));
             _model = go.transform;
             _model.SetParent(this.modelRoot, false);
+            var h = CalculateModelHeight(go); //计算包围盒高度
+            var pos = _model.localPosition;
+            _model.localPosition = new Vector3(pos.x, pos.y - h * 0.5f, pos.z);
+
+            return go;
         }
 
         public void UnloadModel()
@@ -205,17 +210,42 @@ namespace NBF
                 _model = null;
             }
 
-            _rotating = 0;
+            _rotating = Vector3.zero;
         }
 
-        public void StartRotate(float delta)
+        public void StartRotate(Vector3 delta)
         {
             _rotating = delta;
         }
 
         public void StopRotate()
         {
-            _rotating = 0;
+            _rotating = Vector3.zero;
+        }
+
+        // 获取模型的高度
+        private float CalculateModelHeight(GameObject model)
+        {
+            // 获取模型的所有Renderer组件（包括MeshRenderer和SkinnedMeshRenderer）
+            Renderer[] renderers = model.GetComponentsInChildren<Renderer>();
+
+            if (renderers.Length == 0)
+            {
+                Debug.LogWarning("模型没有Renderer组件");
+                return 0f;
+            }
+
+            // 初始化包围盒
+            Bounds bounds = renderers[0].bounds;
+
+            // 合并所有Renderer的包围盒
+            for (int i = 1; i < renderers.Length; i++)
+            {
+                bounds.Encapsulate(renderers[i].bounds);
+            }
+
+            // 返回高度（Y轴尺寸）
+            return bounds.size.y;
         }
 
         void CreateTexture()
@@ -266,10 +296,10 @@ namespace NBF
 
         void Render(object param = null)
         {
-            if (_rotating != 0 && this.modelRoot != null)
+            if (_rotating != Vector3.zero && this.modelRoot != null)
             {
                 Vector3 localRotation = this.modelRoot.localRotation.eulerAngles;
-                localRotation.y += _rotating;
+                localRotation += _rotating;
                 this.modelRoot.localRotation = Quaternion.Euler(localRotation);
             }