Page 1 of 2

Alpha channel render renders black?

Posted: Wed Jun 15, 2016 2:21 pm
by Tehchriis
ticking on the alpha channel gives me a transparante typical checkerboard background in the live preview render,but as soon as I render it out to the picture viewer it all gets a black non transparant background.

I've tried googling but I dind't find anyone running into a similar problem..

Re: Alpha channel render renders black?

Posted: Wed Jun 15, 2016 2:26 pm
by aoktar
Be sure alpha enabled for saving and check the saved image.

Re: Alpha channel render renders black?

Posted: Wed Jan 18, 2017 11:40 pm
by artsandlabor
Same problem here. Did you figure it out?

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:08 am
by aoktar
Please check detailed diagram.

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:12 am
by artsandlabor
Alpha is enabled in kernels (like the Tehchriis' was, I believe) - that's what you were suggesting, no?

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:14 am
by aoktar
Enable alpha in kernel+save image. And check it in pshop,AE,etc... not in picture viewer or window picture viewer. You'll see the alpha.

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:18 am
by artsandlabor
I've been checking it in AE - no alpha. ¯\_(ツ)_/¯ I came across one or two other mentions of this problem on the internet, but haven't seen a follow up with a solution. Thought maybe I was missing something else that's obvious.

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:22 am
by aoktar
artsandlabor wrote:I've been checking it in AE - no alpha. ¯\_(ツ)_/¯ I came across one or two other mentions of this problem on the internet, but haven't seen a follow up with a solution. Thought maybe I was missing something else that's obvious.
Don't know! It's not understandable by me how that's possible! But it's alpha ready by default after set my adviced settings. See this most primitive scene.

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:31 am
by artsandlabor
Oh my god, thank you. I've made a horrible mistake and overlooked checking "alpha" in the Render Settings "save" tab. Thank you!

Re: Alpha channel render renders black?

Posted: Thu Jan 19, 2017 12:35 am
by aoktar
artsandlabor wrote:Oh my god, thank you. I've made a horrible mistake and overlooked checking "alpha" in the Render Settings "save" tab. Thank you!
Glad to help you!