private void Update()
{
if (webCamTex.width > 100)
{
if (textureToSend == null)
{
openCV.CreateWritableTexture(webCamTex.width, webCamTex.height);
textureToSend = new Texture2D(webCamTex.width, webCamTex.height, openCV.sendFormat, false);
return;
}
textureToSend.SetPixels32(webCamTex.GetPixels32());
textureToSend.Apply();
openCV.ProcessImage(textureToSend);
}
}
unsafe void OnCameraFrameReceived(ARCameraFrameEventArgs eventArgs)
{
if (!arCameraManager.TryGetLatestImage(out XRCameraImage image))
{
return;
}
//figure out cam transform
CameraImageTransformation camTransform = CameraImageTransformation.None;
//assume portrait only for now
camTransform = CameraImageTransformation.MirrorX;
camImageScreen.localEulerAngles = new Vector3(0, 0, -90);
//downsample to save fps if needed
Vector2Int outputSize;
if (image.width > 1280)
{
outputSize = new Vector2Int(image.width / 2, image.height / 2);
}
else
{
outputSize = new Vector2Int(image.width, image.height);
}
XRCameraImageConversionParams conversionParams = new XRCameraImageConversionParams {
// Get the entire image
inputRect = new RectInt(0, 0, image.width, image.height),
// Downsample if needed
outputDimensions = outputSize,
// Choose RGB format
outputFormat = openCV.sendFormat,
transformation = camTransform
};
// See how many bytes we need to store the final image.
int size = image.GetConvertedDataSize(conversionParams);
// Allocate a buffer to store the image
var buffer = new NativeArray <byte>(size, Allocator.Temp);
// Extract the image data
image.Convert(conversionParams, new IntPtr(buffer.GetUnsafePtr()), buffer.Length);
image.Dispose();
if (textureToSend == null)
{
textureToSend = new Texture2D(
conversionParams.outputDimensions.x,
conversionParams.outputDimensions.y,
conversionParams.outputFormat,
false);
}
textureToSend.LoadRawTextureData(buffer);
textureToSend.Apply();
if (!texturesCreated)
{
texturesCreated = true;
//init textures here
openCV.CreateWritableTexture(textureToSend.width, textureToSend.height);
return;
}
//process the image
openCV.ProcessImage(textureToSend);
// Done with our temporary data
buffer.Dispose();
}
