ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

Problems finding HOW to do a 16bit export.

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Michele Poggi
Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 2:45:14 pm

Guys, I'm facing some doubts and problems with the Export options of After Effects.

I'm been asked to Export a TIFF sequence with a color depth of 16 bit.

My project IS, 16bit, but then my export isn't. The TIFFs I then open says "24bits for channel", this means 8x3 = 24.

If I FORCE with the output options the 16bits, it says 32. It should be 48 to be a true 16 bits export.

Am I missing something? Am I wrong? Any help will be greatly appreciated, thanks a lot guys.

"Freelance Post-Producer"

Editor Video
Graphic Designer
Digital Compositor

Mail: snm.poggi@gmail.com
Mobile: +39 3349129191
Skype: sabakunomaiku


Return to posts index

Chris Wright
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 3:41:53 pm

trillions of colors is 16 bit/channel or

16x4=64bits in the tiff, and turn lzw off too, its lossy.


Return to posts index

Michele Poggi
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 3:53:14 pm

I did put Trilions of colors in the export that gave be (in the Tiff) 24 and 32. That's my issue.. I'll keep testing and trying though.

"Freelance Post-Producer"

Editor Video
Graphic Designer
Digital Compositor

Mail: snm.poggi@gmail.com
Mobile: +39 3349129191
Skype: sabakunomaiku


Return to posts index


Walter Soyka
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 4:40:30 pm

[Chris Wright] "turn lzw off too, its lossy"

Really? I think LZW compression is lossless [link], and a quick test render of noise as TIFFs with and without LZW compression shows no difference for me.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

Chris Wright
Re: Problems finding HOW to do a 16bit export.
on Feb 4, 2012 at 1:01:44 am

the rgb will change by 1 if you use adobe's eyedropper for lzw. it rounds off numbers in the "lossless" math.


Return to posts index

ben g unguren
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 4:17:56 pm

[Michele Poggi] "The TIFFs I then open says "24bits for channel""

Exactly! 24 bits per channel: 24 bits for the red, 24 for the green, 24 for the blue. You could even go higher than 16 bits and the 24-bit setting would be able to handle it!

Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com


Return to posts index


Michele Poggi
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 4:39:35 pm

Thanks for the support guys, I talked with the VFX Supervisor and he told me this (ours) was not the case.

He's using XnView to check the depth because it seems that XnView shows the TOTAL even if it shows "per channel", so showing 24 it means 8 per channel. That's why in the first post I was talking about "8x3". I know it's weird, but since he's actually using that as official test, maybe my AE is indeed making errors or is this program somehow the fault?

Is there a way to fully be sure about the color depth of the TIFFs I'm exporting.

As always, thanks, and I hope to be as useful as you to this community, asap. ;)

"Freelance Post-Producer"

Editor Video
Graphic Designer
Digital Compositor

Mail: snm.poggi@gmail.com
Mobile: +39 3349129191
Skype: sabakunomaiku


Return to posts index

Walter Soyka
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 4:59:48 pm

XnView downsamples TIFF files to 8-bit RGB when it opens them, but it does correctly report the bit depth when browsing.

If your output module is set for Trillions of Colors or Floating Point, you should not be getting 8-bit files.

You could try re-importing your TIFF files into AE, then selecting one in the project panel. If it says Millions of Colors next to the thumbnail, it's 8-bit. It should say Trillions of Colors.

Otherwise, maybe if you post one of your TIFF files, one of us could check it for you?

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

Michele Poggi
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 6:02:55 pm

Sure, here it is: 3629_00043.tif.zip

The VFX Supervisor began having doubts because of the circles of contrast that are around the sea. And then checking on XnView he said that since it was showing "24" the files were 8 bit. Then forcing in the output module the 16 bit export (though it should have been already ok since the project IS 16 bit and by standard there is "current settings") it showed "32".

"Freelance Post-Producer"

Editor Video
Graphic Designer
Digital Compositor

Mail: snm.poggi@gmail.com
Mobile: +39 3349129191
Skype: sabakunomaiku


Return to posts index


Walter Soyka
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 6:14:33 pm

Looks good here. Here's a screenshot of XnView showing 48 bits (per pixel):



Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

Michele Poggi
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 6:19:33 pm

I usually don't use XnView, but I downloaded it now to discover what in the world my supervisor could have done. Of course I confirmed what you said, so it IS 16 bit, indeed. Exactly as you said if you open it it downs it to 8-bit, so maybe my supervisor missed this thing and looked at the wrong properties. I'll warn him.

Thanks for the extremely fast and professional support, really.


Return to posts index

Walter Soyka
Re: Problems finding HOW to do a 16bit export.
on Feb 3, 2012 at 8:25:12 pm

You're welcome -- and good luck with the project.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]