iOS 10: cicontext.render() makes transparent areas black

Asked Mar 09 '17 at 12:31

Active Jul 27 '17 at 22:00

Viewed 518 times

I'm using

ciContext.render(overlayImg, to: pixelBuffer, bounds: bufferFrame, colorSpace: nil)

where overlayImg is an image with transparent areas. Pre-iOS10 this worked as expected, but since iOS 10 the transparent areas are black.

I don't know exactly what changed, but how can I achieve the rendering with transparency again?

asked Mar 09 '17 at 12:31

swalkner

Dealing with this same problem - any success? – mattsven Jul 27 '17 at 11:45
no, unfortunately not :( Would LOVE if you post the solution if you have one... – swalkner Jul 27 '17 at 11:53
Post some sample code that I can run, I will try to help you as best as I can. – Brandon Jul 28 '17 at 01:13
@Brandon Posted some sample code here where I'm dealing with a similar issue: https://stackoverflow.com/questions/45373383/inputimage-of-cifilter-is-always-black – mattsven Jul 28 '17 at 12:28
How are you creating your CIContext? – Pochi Aug 03 '17 at 02:32
have a look at https://stackoverflow.com/a/25405096/2299040 might help – Sahil Manchanda Aug 03 '17 at 17:47
Try setting the color space instead of nil – Ömer Karışman Sep 09 '17 at 15:01
@swalkner any update on this? – Tometoyou Oct 19 '20 at 09:47
please share with the answer :) – Neil Galiaskarov Dec 16 '21 at 07:39
This work for me. https://stackoverflow.com/questions/47576163/cicontext-render-tocvpixelbuffer-bounds-colorspace-function-does-not-work-fo – Vincent Sit May 13 '22 at 07:16

0 Answers0