i'm migrating an app from WP 8.1 to UWP ,so i'm moving to Lumia sdk 3 . This effect was working fine in SDK 2
BlendEffect(background, foreground, mask , BlendFunction.Normal , 1f)
but in SDK 3 , the output is only background.
i've tried this
BlendEffect(background, foreground, BlendFunction.Add) the output is ok
So is the mask broken in sdk 3 ? or the format changed ?
my mask provider is StorageFileImageSource the image is 32bit BGRA
24bit BGR works nothing documented