//将RenderTexture保存成一张png图片
public bool SaveRenderTextureToPNG(RenderTexture rt, string contents, string pngName)
{
RenderTexture prev = RenderTexture
.active
RenderTexture
.active = rt
Texture2D png = new Texture2D(rt
.width, rt
.height, TextureFormat
.ARGB32, false)
png
.ReadPixels(new Rect(
0,
0, rt
.width, rt
.height),
0,
0)
byte[] bytes = png
.EncodeToPNG()
if (!Directory
.Exists(contents))
Directory
.CreateDirectory(contents)
FileStream file = File
.Open(contents +
"/" + pngName +
".png", FileMode
.Create)
BinaryWriter writer = new BinaryWriter(file)
writer
.Write(bytes)
file
.Close()
Texture2D
.DestroyImmediate(png)
png = null
RenderTexture
.active = prev
return true
}
截取前图片为如下：
剪切后画面如下：
关于剪裁我想说明如下： 照片需要放在画布上 从照片的哪个位置开始剪裁，剪多宽和多高 剪裁完毕的图片相对于画布，摆在画布的哪个位置
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