Unity3D 截取6面图做全景图脚本

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class PanoramaGenerator : ScriptableWizard
{
[Header("360 全景相机")]
public Camera panoramaCamera;
string[] skyBoxImage = new string[] { "_back", "_right", "_front", "_left", "_up", "_bottom"};
Vector3[] skyDirection = new Vector3[] {new Vector3(0, 0, 0), new Vector3(0, -90, 0), new Vector3(0, 180, 0), new Vector3(0, 90, 0), new Vector3(-90, 180, 0), new Vector3(90, 180, 0)};
[Header("截取图片尺寸，最好为 2的N次方")]
public int ScreenSize = 1024;
[Header("SkyBox")]
public Cubemap cubemap;

void OnWizardUpdate()
{
helpString = "Select transform to render from";
isValid = (panoramaCamera != null);
}

void OnWizardCreate()
{
panoramaCamera.backgroundColor = Color.black;
panoramaCamera.clearFlags = CameraClearFlags.Skybox;
panoramaCamera.fieldOfView = 90;
panoramaCamera.aspect = 1.0f;
panoramaCamera.transform.rotation = Quaternion.identity;

for (var orientation = 0; orientation < skyDirection.Length; orientation++)
{
renderSkyImage(orientation, panoramaCamera.gameObject);
}
if (cubemap)
{
panoramaCamera.RenderToCubemap(cubemap);
}

}

[MenuItem("360 全景/ 渲染6张图", false, 4)]
static void RenderSkyBox()
{
ScriptableWizard.DisplayWizard<PanoramaGenerator>("Render SkyBox","渲染!");
}

void renderSkyImage(int orientation, GameObject go)
{
try
{
go.transform.eulerAngles = skyDirection[orientation];
var screenSize = ScreenSize;
RenderTexture rt = new RenderTexture(screenSize, screenSize, 24);
go.GetComponent<Camera>().targetTexture = rt;
var screenShot = new Texture2D(screenSize, screenSize, TextureFormat.RGBA32, false);
go.GetComponent<Camera>().Render();
RenderTexture.active = rt;
screenShot.ReadPixels(new Rect(0, 0, screenSize, screenSize), 0, 0);
RenderTexture.active = null;
var bytes = screenShot.EncodeToPNG();
var directory = "Assets/Skyboxes";
if (!System.IO.Directory.Exists(directory))
System.IO.Directory.CreateDirectory(directory);
System.IO.File.WriteAllBytes(System.IO.Path.Combine(directory, skyBoxImage[orientation] + ".png"), bytes);
DestroyImmediate(rt);
}
catch(System.Exception ex)
{
}
}

}

----------------------------------------------------------------------------------------------------------------------------

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class PanoramaGenerator : ScriptableWizard
{
[Header("720 全景相机")]
public Camera[] panoramaCamera;
[SerializeField, Header("是否启用父级名称")]
bool isUsingParentName=false;
string[] skyBoxImage = new string[] { "_back", "_right", "_front", "_left", "_up", "_bottom"};
Vector3[] skyDirection = new Vector3[] {new Vector3(0, 0, 0), new Vector3(0, -90, 0), new Vector3(0, 180, 0), new Vector3(0, 90, 0), new Vector3(-90, 180, 0), new Vector3(90,180, 0)};
[Header("截取图片尺寸，最好为 2的N次方")]
public int ScreenSize = 1024;
[Header("图片缩放因子"),Range(1,6)]
public int factor = 1;
[Header("SkyBox")]
public Cubemap cubemap;

void OnWizardUpdate()
{
helpString = "Select transform to render from";
isValid = (panoramaCamera != null);
}

void OnWizardCreate()
{
if (panoramaCamera.Length > 0)
{
foreach (var camera in panoramaCamera)
{
Create(camera);
}
}

}

void Create(Camera panoramaCamera)
{
panoramaCamera.backgroundColor = Color.blue;
panoramaCamera.clearFlags = CameraClearFlags.Skybox;
panoramaCamera.fieldOfView = 90;
panoramaCamera.aspect = 1.0f;
panoramaCamera.transform.rotation = Quaternion.identity;

for (var orientation = 0; orientation < skyDirection.Length; orientation++)
{
renderSkyImage(orientation, panoramaCamera.gameObject);
}
if (cubemap)
{
panoramaCamera.RenderToCubemap(cubemap);
}
}

[MenuItem("720 全景/ 渲染6张图", false, 4)]
static void RenderSkyBox()
{
ScriptableWizard.DisplayWizard<PanoramaGenerator>("Render SkyBox","渲染!");
}

void renderSkyImage(int orientation, GameObject go)
{
try
{
go.transform.eulerAngles = skyDirection[orientation];
var screenSize = ScreenSize* factor;
RenderTexture rt = new RenderTexture(screenSize, screenSize, 24);
go.GetComponent<Camera>().targetTexture = rt;
var screenShot = new Texture2D(screenSize, screenSize, TextureFormat.RGB24, false);
go.GetComponent<Camera>().Render();
RenderTexture.active = rt;
screenShot.ReadPixels(new Rect(0, 0, screenSize, screenSize), 0, 0);
RenderTexture.active = null;
var bytes = screenShot.EncodeToJPG();

var directory = "Assets/Skyboxes/";

if (isUsingParentName)
{
if (go.transform.parent)
{
directory += go.transform.parent.name;
}
else
{
directory += go.name;
}
}
else
{
directory += go.name;
}
if (!System.IO.Directory.Exists(directory))
System.IO.Directory.CreateDirectory(directory);
System.IO.File.WriteAllBytes(System.IO.Path.Combine(directory, skyBoxImage[orientation] + ".jpg"), bytes);
go.GetComponent<Camera>().targetTexture = null;
DestroyImmediate(rt);
}
catch(System.Exception ex)
{
Debug.LogError(ex.Message);
}
}

}

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