CalculateFrustumPlanes
Calculates frustum planes.
Read time 2 minutesLast updated 4 days ago
Definition
- Type: Method
- Namespace: UnityEngine
- Assembly: UnityEngine.CoreModule
CalculateFrustumPlanes(Camera)
Calculates frustum planes.
public static Plane[] CalculateFrustumPlanes(Camera camera)
Parameters
The camera with the view frustum that you want to calculate planes from.
Returns
Type | Description |
|---|---|
| Plane[] | The planes that form the camera's view frustum. |
Remarks
This function takes the given camera's view frustum and returns six planes that form it. The normal of each plane points into the frustum.
Ordering: [0] = Left, [1] = Right, [2] = Bottom, [3] = Top, [4] = Near, [5] = Far
Additional Resources: Plane, GeometryUtility.TestPlanesAABB.
Examples
using UnityEngine;using System.Collections;public class ExampleClass : MonoBehaviour{ void Start() { // Calculate the planes from the main camera's view frustum Plane[] planes = GeometryUtility.CalculateFrustumPlanes(Camera.main); // Create a "Plane" GameObject aligned to each of the calculated planes for (int i = 0; i < 6; ++i) { GameObject p = GameObject.CreatePrimitive(PrimitiveType.Plane); p.name = "Plane " + i.ToString(); p.transform.position = -planes[i].normal * planes[i].distance; p.transform.rotation = Quaternion.FromToRotation(Vector3.up, planes[i].normal); } }}
CalculateFrustumPlanes(Matrix4x4)
Calculates frustum planes.
public static Plane[] CalculateFrustumPlanes(Matrix4x4 worldToProjectionMatrix)
Parameters
A matrix that transforms from world space to projection space, from which the planes will be calculated.
Returns
Type | Description |
|---|---|
| Plane[] | The planes that enclose the projection space described by the matrix. |
Remarks
This function returns six planes of a frustum defined by the given view & projection matrix.
Additional Resources: Plane, GeometryUtility.TestPlanesAABB.
CalculateFrustumPlanes(Camera, Plane[])
Calculates frustum planes.
public static void CalculateFrustumPlanes(Camera camera, Plane[] planes)
Parameters
Remarks
This function takes the given camera's view frustum and returns six planes that form it. This is similar to the previous overload, except that instead of allocating a new array for the calculated planes, the function will use an array that you have provided. This array must always be exactly of length 6.
Ordering: [0] = Left, [1] = Right, [2] = Down, [3] = Up, [4] = Near, [5] = Far
Additional Resources: Plane, GeometryUtility.TestPlanesAABB.
CalculateFrustumPlanes(Matrix4x4, Plane[])
Calculates frustum planes.
public static void CalculateFrustumPlanes(Matrix4x4 worldToProjectionMatrix, Plane[] planes)
Parameters
Remarks
This function returns six planes of a frustum defined by the given view & projection matrix. This is similar to the previous overload, except that instead of allocating a new array for the calculated planes, the function will use an array that you have provided. This array must always be exactly of length 6.
Additional Resources: Plane, GeometryUtility.TestPlanesAABB.