37 lines
1.4 KiB
C#
37 lines
1.4 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UIElements;
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public class VisibilityTool
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{
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/// <summary>
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/// 判断对象是否在相机视锥体内
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/// </summary>
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/// <param name="obj">目标对象（需带有Renderer组件）</param>
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/// <param name="camera">目标相机</param>
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/// <returns>是否可视</returns>
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public static bool IsObjectInFrustum(GameObject obj, Camera camera)
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{
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if (obj == null || camera == null) return false;
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//Renderer renderer = obj.GetComponent<Renderer>();
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//if (renderer == null) return false; // 没有Renderer则无法获取包围盒
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Vector3 viewportPos = camera.WorldToViewportPoint(obj.transform.position);
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bool isVisible = viewportPos.x >= 0 && viewportPos.x <= 1 &&
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viewportPos.y >= 0 && viewportPos.y <= 1 &&
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viewportPos.z > 0;
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return isVisible;
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//var extents = renderer.bounds.extents;
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//if (extents.x < 0.001 && extents.y < 0.001 && extents.z < 0.001)
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//{
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// renderer.bounds = new Bounds(renderer.bounds.center, Vector3.one);
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//}
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//// 获取相机的视锥体平面数组
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//Plane[] frustumPlanes = GeometryUtility.CalculateFrustumPlanes(camera);
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//// 检测包围盒是否在视锥体内
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//return GeometryUtility.TestPlanesAABB(frustumPlanes, renderer.bounds);
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}
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}
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