我要评论最近做项目的时候需要在游戏里截一张高清截图，研究了一下写成脚本，方便以后使用。
脚本可以自定义分辨率，用相机截高清截图。可以用代码动态截图，也可以在编辑模式下截图。
注意截图宽高比要正确，宽高比不正确时可能会出问题。
截图效果：
脚本:
cameracapture.cs
using unityengine;
using system.io;
/// <summary>
/// 相机截图
/// <para>zhangyu 2018-07-06</para>
/// </summary>
public class cameracapture : monobehaviour {
// 截图尺寸
public enum capturesize {
camerasize,
screenresolution,
fixedsize
}
// 目标摄像机
public camera targetcamera;
// 截图尺寸
public capturesize capturesize = capturesize.camerasize;
// 像素尺寸
public vector2 pixelsize;
// 保存路径
public string savepath = "streamingassets/";
// 文件名称
public string filename = "cameracapture.png";
#if unity_editor
private void reset() {
targetcamera = getcomponent<camera>();
pixelsize = new vector2(screen.currentresolution.width, screen.currentresolution.height);
}
#endif
/// <summary> 保存截图 </summary>
/// <param name="camera">目标摄像机</param>
public void savecapture() {
vector2 size = pixelsize;
if (capturesize == capturesize.camerasize) {
size = new vector2(targetcamera.pixelwidth, targetcamera.pixelheight);
} else if (capturesize == capturesize.screenresolution) {
size = new vector2(screen.currentresolution.width, screen.currentresolution.height);
}
string path = application.datapath + "/" + savepath + filename;
savetexture(path, capture(targetcamera, (int)size.x, (int)size.y));
}
/// <summary> 相机截图 </summary>
/// <param name="camera">目标相机</param>
public static texture2d capture(camera camera) {
return capture(camera, screen.width, screen.height);
}
/// <summary> 相机截图 </summary>
/// <param name="camera">目标相机</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static texture2d capture(camera camera, int width, int height) {
rendertexture rt = new rendertexture(width, height, 0);
rt.depth = 24;
rt.antialiasing = 8;
camera.targettexture = rt;
camera.renderdontrestore();
rendertexture.active = rt;
texture2d texture = new texture2d(width, height, textureformat.argb32, false, true);
rect rect = new rect(0, 0, width, height);
texture.readpixels(rect, 0, 0);
texture.filtermode = filtermode.point;
texture.apply();
camera.targettexture = null;
rendertexture.active = null;
destroy(rt);
return texture;
}
/// <summary> 保存贴图 </summary>
/// <param name="path">保存路径</param>
/// <param name="texture">texture2d</param>
public static void savetexture(string path, texture2d texture) {
file.writeallbytes(path, texture.encodetopng());
#if unity_editor
debug.log("已保存截图到:" + path);
#endif
}
}
脚本编辑器:
cameracaptureeditor.cs
using unityeditor;
using unityengine;
/// <summary>
/// 相机截图 编辑器
/// <para>zhangyu 2018-07-06</para>
/// </summary>
[caneditmultipleobjects]
[customeditor(typeof(cameracapture))]
public class cameracaptureeditor : editor {
public override void oninspectorgui() {
// 属性
cameracapture script = (cameracapture)target;
int selected = (int)script.capturesize;
// 重绘gui
editorgui.beginchangecheck();
drawproperty("targetcamera", "目标像机");
string[] options = new string[] { "像机尺寸", "屏幕尺寸", "固定尺寸"};
selected = editorguilayout.popup("截图尺寸", selected, options, guilayout.expandwidth(true));
script.capturesize = (cameracapture.capturesize)selected;
if (script.capturesize == cameracapture.capturesize.fixedsize) {
drawproperty("pixelsize", "像素尺寸");
editorguilayout.helpbox("请保持正确的宽高比！\n否则截图区域可能出现错误。", messagetype.info);
}
drawproperty("savepath", "保存路径");
drawproperty("filename", "文件名称");
// 保存截图按钮
bool ispress = guilayout.button("保存截图", guilayout.expandwidth(true));
if (ispress) script.savecapture();
if (editorgui.endchangecheck()) serializedobject.applymodifiedproperties();
}
private void drawproperty(string property, string label) {
editorguilayout.propertyfield(serializedobject.findproperty(property), new guicontent(label), true);
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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