LOD高亮轮廓

Assets/Scripts/HQB/SorghumController.cs

@@ -1,5 +1,7 @@
+using HighlightPlus;
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using UnityEngine;
 using UnityEngine.SocialPlatforms;
 
@@ -18,6 +20,8 @@ public class SorghumController : PermanentTriggerBase
 
     public bool RandomRotate = true;
 
+
+    LODGroup lodGroup = null;
     public void Init(SorghumState _state = SorghumState.Healthy, bool _rand = false)
     {
         State = _state;
@@ -43,10 +47,12 @@ public class SorghumController : PermanentTriggerBase
             case SorghumState.Diseased:
                 triggerName = "高粱_病株";
                 this.gameObject.name = "高粱_病株";
+                lodGroup = DiseasedStrain.GetComponent<LODGroup>();
                 break;
             case SorghumState.Healthy:
                 triggerName = "高粱_正常";
                 this.gameObject.name = "高粱_正常";
+                lodGroup = HealthyStrain.GetComponent<LODGroup>();
                 break;
         }
 
@@ -99,14 +105,50 @@ public class SorghumController : PermanentTriggerBase
         base.OnMEnter();
         //if (GameManager.RunModelMgr?.ModeType != E_ModeType.Study)
         //{
-        _highlight.SetHighlighted(true);
+
+        _highlight = GetComponentInChildren<HighlightEffect>();
+        if (_highlight != null)
+            _highlight.SetHighlighted(true);
+
+        //Debug.Log("当前渲染：" + GetLODCurShowLevel(Camera.main, lodGroup));
         //}
     }
 
+    int GetLODCurShowLevel(Camera cam, LODGroup lodGroup)
+    {
+        var inv_SceneViewCamHeight = 1.0f / (cam.pixelHeight - 6.0f);
+
+        var lods = lodGroup.GetLODs();
+        for (int lodIDX = 0; lodIDX < lods.Length; lodIDX++)
+        {
+            var lod = lods[lodIDX];
+            var renderers = lod.renderers;
+            for (int renderIDX = 0; renderIDX < renderers.Length; renderIDX++)
+            {
+                var renderer = renderers[renderIDX];
+                var heightInScreen = cam.WorldToScreenPoint(renderer.bounds.min).y - cam.WorldToScreenPoint(renderer.bounds.max).y;
+                var ratioInScren = Mathf.Abs(heightInScreen * inv_SceneViewCamHeight);
+                if (ratioInScren > lod.screenRelativeTransitionHeight)
+                {
+                    return lodIDX;
+                }
+            }
+        }
+
+        return -1;
+    }
+
+    private float CalculateScreenRelativeHeight(float objectSize, float distance, float fov)
+    {
+        // 计算物体在屏幕上的高度比例
+        float screenHeight = 2.0f * Mathf.Tan(0.5f * fov * Mathf.Deg2Rad) * distance;
+        return objectSize / screenHeight;
+    }
+
     protected override void OnMExit()
     {
-        //if (GameManager.RunModelMgr?.ModeType != E_ModeType.Study)
+        if (_highlight != null)
-        _highlight.SetHighlighted(false);
+            _highlight.SetHighlighted(false);
         base.OnMExit();
     }
 

Assets/Scripts/HQB/SorghumFieldController.cs

@@ -167,16 +167,16 @@ public class SorghumFieldController : MonoBehaviour
 
     private void SetRenderersEnabled(bool enabled, GameObject go)
     {
-        GameObject obj = go;
+        //GameObject obj = go;
-        if (obj == null) obj = this.gameObject;
+        //if (obj == null) obj = this.gameObject;
-        Renderer[] renderers = go.GetComponentsInChildren<Renderer>();
+        //Renderer[] renderers = go.GetComponentsInChildren<Renderer>();
-        foreach (Renderer r in renderers)
+        //foreach (Renderer r in renderers)
-        {
+        //{
-            r.enabled = enabled;
+        //    r.enabled = enabled;
-        }
+        //}
 
-        LODGroup lg = go.GetComponent<LODGroup>();
+        //LODGroup lg = go.GetComponent<LODGroup>();
-        Debug.Log("LOD×éÊý£º" + lg.GetLODs().Length);
+        //Debug.Log("LOD×éÊý£º" + lg.GetLODs().Length);
         //Renderer[] rd = lg.GetLODs();
     }
 }