Hi, I’ve scoured the web for a possible solution to my problem with no avail.
I’m currently trying to add a screenshot function on the Oculus Quest where a player can take a picture from a secondary camera.
When I run my program from the editor, with the exception of lag from taking the picture, it works perfectly fine. However, when I push to app lab to run on the Oculus natively, I always get a blank image. I’ve messed around with the color encoding, flag settings, and using OnRenderImage.
I’ve also tried several encoding options, so I think the problem lies in the RenderTexure.
Apparently, having black images or RenderTextures is a common problem with Android or mobile devices, and I’ve seen some threads on them. As the Quest is an Android based device, I tried as many suggestions as I could find to no avail.
Here’s one of the threads I looked at:
https://stackoverflow.com/questions/35196619/render-texture-black-on-android-only
If anyone has a clue to what may be wrong, I’ll be very grateful to hear your suggestions.
Below is the section of code responsible for taking the picture.
Thanks!
private IEnumerator TakePhoto()
{
yield return new WaitForEndOfFrame();
string sceneName = SceneManager.GetActiveScene().name;
if (sceneName.Equals("HomeScene"))
{
cameraFlash.SetActive(true);
}
Camera cam = cameraTransform.GetComponent<Camera>();
RenderTexture renderText = RenderTexture.active;
cam.Render();
RenderTexture.active = cam.targetTexture;
Texture2D Im = new Texture2D(cam.targetTexture.width, cam.targetTexture.height, TextureFormat.RGB24, false);
// adding wait here, makes error
Im.ReadPixels(new Rect(0, 0, cam.targetTexture.width, cam.targetTexture.height), 0, 0);
yield return new WaitForEndOfFrame();
yield return new WaitForEndOfFrame();
Im.Apply();
yield return Im;
byte[] Bytes = ImageConversion.EncodeArrayToPNG(Im.GetRawTextureData(), Im.graphicsFormat, (uint)cam.targetTexture.width, (uint)cam.targetTexture.height);
string photoTime = GetTimeStamp("");
print("SceneName: " + sceneName);
if (Directory.Exists(Application.persistentDataPath))
{
print("Capture Path: " + Application.persistentDataPath);
NativeGallery.Permission permission = NativeGallery.SaveImageToGallery(Im, "gameName", sceneName + "_" + photoTime + "_ - n" + FileCounter + ".png");
File.WriteAllBytes(Application.persistentDataPath + "\\" + sceneName + "_" + photoTime + "_-n" + FileCounter + ".png", Bytes);
FileCounter++;
}
cameraFlash.SetActive(false);
Destroy(Im);
}
If you have a problem.