ImageConversion.EncodeNativeArrayToTGA

Parameters

Description

Encodes this native array into TGA format.

This function returns a NativeArray<byte> which is the TGA data. Write this data to disk to get the data in the TGA file format.

The encoded TGA data is not compressed and contains an alpha channel for RGBA32, ARGB32 textures, and no alpha channel for RGB24 textures. For single-channel red textures ( R8, R16, RFloat and RHalf ), the encoded TGA data will be in 8-bit grayscale.

The native array that this function returns is allocated with the persistent allocator, so this function should only be called from the main thread.

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

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

    IEnumerator SaveScreenTGA()
    {
        // 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 bytes in TGA format
        NativeArray<byte> imageBytes = new NativeArray<byte>(tex.GetRawTextureData(), Allocator.Temp);
        var bytes = ImageConversion.EncodeNativeArrayToTGA(imageBytes, tex.graphicsFormat, (uint)width, (uint)height);
        Object.Destroy(tex);

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

Additional resources: EncodeToTGA, EncodeArrayToTGA, EncodeNativeArrayToPNG, EncodeNativeArrayToJPG, EncodeNativeArrayToEXR.