【m】11.PointCloudTools 上传

Assets/11.PointCloudTools/Runtime/Script/PointSystem/Gizmo/SphereColliderGizmo.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+ 
+public class SphereColliderGizmo : MonoBehaviour {
+    void Start() {
+        
+    }
+	// Update is called once per frame
+    void OnRenderObject() {
+        // 添加SphereCollider处理
+        var sphereColliders = gameObject.GetComponents<SphereCollider>();
+        if (sphereColliders != null) {
+            CreateLineMaterial();
+            lineMaterial.SetPass(0);
+            GL.PushMatrix();
+            GL.MultMatrix(transform.localToWorldMatrix);
+
+            foreach (var col in sphereColliders) {
+                float radius = col.radius;
+                Vector3 scale = transform.lossyScale;
+                // 计算最大缩放值
+                float maxScale = Mathf.Max(scale.x, scale.y, scale.z);
+                float scaledRadius = radius * maxScale;
+
+                Vector3 center = col.center;
+
+                // 绘制三个方向的圆环
+                DrawCircle(center, Vector3.up, Vector3.forward, scaledRadius);
+                DrawCircle(center, Vector3.forward, Vector3.up, scaledRadius);
+                DrawCircle(center, Vector3.right, Vector3.up, scaledRadius);
+            }
+            GL.PopMatrix();
+        }
+
+        // 原来的BoxCollider代码保持不变...
+        var colliders = gameObject.GetComponents<BoxCollider>();
+        // ... 后续BoxCollider的绘制代码保持不变 ...
+    }
+
+// 新增辅助方法绘制圆形
+    void DrawCircle(Vector3 center, Vector3 normal, Vector3 axis, float radius) {
+        int segments = 32;
+        float angle = 0f;
+
+        GL.Begin(GL.LINE_STRIP);
+        GL.Color(Color.red);
+
+        for (int i = 0; i <= segments; i++) {
+            Vector3 point = center;
+            point += (axis * Mathf.Cos(angle) + Vector3.Cross(normal, axis) * Mathf.Sin(angle)) * radius;
+            GL.Vertex(point);
+            angle += Mathf.PI * 2f / segments;
+        }
+        GL.End();
+    }
+ 
+    static Material lineMaterial;
+    static void CreateLineMaterial() {
+        if (!lineMaterial) {
+            // Unity has a built-in shader that is useful for drawing
+            // simple colored things.
+            Shader shader = Shader.Find("Hidden/Internal-Colored");
+            lineMaterial = new Material(shader);
+            lineMaterial.hideFlags = HideFlags.HideAndDontSave;
+            // Turn on alpha blending
+            lineMaterial.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
+            lineMaterial.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
+            // Turn backface culling off
+            lineMaterial.SetInt("_Cull", (int)UnityEngine.Rendering.CullMode.Off);
+            // Turn off depth writes
+            lineMaterial.SetInt("_ZWrite", 0);
+        }
+    }
+}