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Assets/Scripts/UI/Common/ModelViewer/ModelViewer.cs

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+// 本脚本只在不存在时会生成一次。组件逻辑写在当前脚本内。已存在不会再次生成覆盖 
+
+using System.IO;
+using UnityEngine;
+using FairyGUI;
+using Fantasy;
+using NBF.Fishing2;
+using Log = NBC.Log;
+
+namespace NBF
+{
+    public partial class ModelViewer : GComponent
+    {
+        ModelViewRenderImage _renderImage;
+
+        public ModelViewRenderImage RenderImage => _renderImage;
+        private Transform ModelRoot => _renderImage?.modelRoot;
+        private Camera ViewCamera => _renderImage.Camera;
+
+        public ModelViewerSettings ViewerSettings => _renderImage.ViewerSettings;
+
+        private void OnInited()
+        {
+            
+            TouchHolder.onRollOver.Set(OnFocusIn);
+            TouchHolder.onRollOut.Set(OnFocusOut);
+            Stage.inst.onMouseWheel.Add(OnMouseWheel);
+            
+            onAddedToStage.Add(OnAddedToStage);
+
+            SetRotateListening();
+        }
+
+        void OnAddedToStage()
+        {
+            _renderImage = new ModelViewRenderImage(ModelHolder.asGraph);
+        }
+
+
+        public override void Dispose()
+        {
+            Stage.inst.onMouseWheel.Remove(OnMouseWheel);
+            _renderImage.Dispose();
+            base.Dispose();
+        }
+
+
+        public void SetData(ItemInfo itemInfo)
+        {
+            _renderImage.SetModel(PrefabsHelper.CreateItem(itemInfo.Config), ModelViewerSettings.Load((int)itemInfo.ConfigId));
+        }
+
+        public void SetData(cfg.Item itemConfig)
+        {
+            _renderImage.SetModel(PrefabsHelper.CreateItem(itemConfig), ModelViewerSettings.Load(itemConfig.Id));
+        }
+
+
+        public void UnloadModel()
+        {
+            _renderImage.UnloadModel();
+        }
+
+        #region 用户输入操作(滑动，拖动等)
+
+        private bool _focus;
+
+        private float _minFOV = 10f;
+        private float _maxFOV = 120f;
+
+        private void SetRotateListening()
+        {
+            var dragObj = TouchHolder;
+            var gesture1 = new SwipeGesture(dragObj);
+            gesture1.onBegin.Set(OnSwipeBegin);
+            gesture1.onMove.Set(OnSwipeMove);
+            gesture1.onEnd.Set(OnSwipeEnd);
+        }
+
+        private void OnSwipeBegin(EventContext context)
+        {
+            var gesture = context.sender as SwipeGesture;
+            if (gesture == null) return;
+            if (context.inputEvent.button == 0)
+            {
+                _renderImage.StartRotate(gesture.position);
+            }
+        }
+
+        private void OnSwipeMove(EventContext context)
+        {
+            var gesture = context.sender as SwipeGesture;
+            if (gesture == null) return;
+
+            if (context.inputEvent.button == 0)
+            {
+                _renderImage.UpdateRotation(gesture.position);
+            }
+        }
+
+        private void OnSwipeEnd(EventContext context)
+        {
+            _renderImage.StopRotate();
+        }
+
+        private void OnFocusIn()
+        {
+            _focus = true;
+            Log.Info("focus true");
+        }
+
+        private void OnFocusOut()
+        {
+            _focus = false;
+            Log.Info("focus false");
+        }
+
+        private void OnMouseWheel(EventContext context)
+        {
+            if (!_focus) return;
+            float delta = context.inputEvent.mouseWheelDelta / Stage.devicePixelRatio;
+            SetZoom(delta);
+        }
+
+        private void SetZoom(float delta)
+        {
+            ViewCamera.fieldOfView = Mathf.Clamp(ViewCamera.fieldOfView + delta, _minFOV, _maxFOV);
+        }
+
+        #endregion
+
+        public void SaveRenderTextureToPNG(int id)
+        {
+#if UNITY_EDITOR
+            RenderTexture rt = RenderImage.RT;
+            if (rt == null)
+            {
+                Debug.LogWarning("RenderTexture 为 null，无法保存。");
+                return;
+            }
+
+            RenderTexture current = RenderTexture.active;
+            RenderTexture.active = rt;
+
+            Texture2D tex = new Texture2D(rt.width, rt.height, TextureFormat.RGBA32, false);
+            tex.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);
+            tex.Apply();
+
+            Texture2D resizedTex = new Texture2D(256, 256, TextureFormat.RGBA32, false);
+
+            // 使用双线性滤波进行缩放
+            for (int y = 0; y < 256; y++)
+            {
+                for (int x = 0; x < 256; x++)
+                {
+                    // 计算在原始纹理中的对应坐标
+                    float u = (float)x / 255f;
+                    float v = (float)y / 255f;
+
+                    // 获取插值后的颜色
+                    Color color = tex.GetPixelBilinear(u, v);
+                    resizedTex.SetPixel(x, y, color);
+                }
+            }
+
+            resizedTex.Apply();
+
+            byte[] bytes = resizedTex.EncodeToPNG();
+            var path = Path.Combine(Application.dataPath, $"Resources/Icons/{id}.png");
+            File.WriteAllBytes(path, bytes);
+            Debug.Log($"✅ RenderTexture 已保存到: {path}");
+            Notices.Info($"生成：{id}");
+
+            Object.Destroy(tex);
+            RenderTexture.active = current;
+#endif
+        }
+    }
+}