input | The native array to convert. |
format | The pixel format of the image data. |
width | The width of the image data in pixels. |
height | The height of the image data in pixels. |
rowBytes | The length of a single row in bytes. The default is 0, which means Unity calculates the length automatically. |
Encodes this native array into PNG format.
This function returns a NativeArray<byte> which is the PNG data. Write this data to disk to get the data in the PNG file format.
The encoded PNG data will contain 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 PNG data will be in grayscale.
PNG data will not contain gamma correction or color profile information.
This method is thread safe.
// Saves screenshot as PNG file. using System.Collections; using System.IO; using Unity.Collections; using UnityEngine;
public class PNGScreenSaver : MonoBehaviour { // Take a shot immediately IEnumerator Start() { yield return SaveScreenPNG(); }
IEnumerator SaveScreenPNG() { // 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 PNG format NativeArray<byte> imageBytes = new NativeArray<byte>(tex.GetRawTextureData(), Allocator.Temp); var bytes = ImageConversion.EncodeNativeArrayToPNG(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.png", bytes.ToArray()); } }