ImageConversion.EncodeToJPG

参数

描述

将该纹理编码为 JPG 格式。

返回的字节数组为 JPG“文件”。您可以将它们写入磁盘以获取 JPG 文件， 或通过网络发送等。

This function works only on uncompressed, non-HDR texture formats. You must enable the texture's Read/Write Enabled flag in the Texture Import Settings. The encoded JPG data will have no alpha channel, and for single-channel red textures ( R8, R16, RFloat and RHalf ) the encoded JPG data will be in 8-bit grayscale.

// Saves screenshot as JPG file.
using UnityEngine;
using System.Collections;
using System.IO;

public class JPGScreenSaver : MonoBehaviour
{
    // Take a shot immediately
    IEnumerator Start()
    {
        yield return SaveScreenJPG();
    }

    IEnumerator SaveScreenJPG()
    {
        // Read the screen buffer after rendering is complete
        yield return new WaitForEndOfFrame();

        // Create a texture in RGB24 format the size of the screen
        int width = Screen.width;
        int height = Screen.height;
        Texture2D tex = new Texture2D(width, height, TextureFormat.RGB24, false);

        // Read the screen contents into the texture
        tex.ReadPixels(new Rect(0, 0, width, height), 0, 0);
        tex.Apply();

        // Encode the texture in JPG format
        byte[] bytes = tex.EncodeToJPG();
        Object.Destroy(tex);

        // Write the returned byte array to a file in the project folder
        File.WriteAllBytes(Application.dataPath + "/../SavedScreen.jpg", bytes);
    }
}

See Also: EncodeArrayToJPG, EncodeNativeArrayToJPG, EncodeToPNG, EncodeToTGA, EncodeToEXR.