topic Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit? in Visualization

Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Wir_n — Thu, 11 May 2023 09:51:23 GMT

Hi there!
This is a question about getting full range 32-bit images from publisher. I noticed there's a difference if you save a rendered image as a 32 bit .tiff compared to publishing the same format via publisher. Both are saved with the " High accuracy color..." options. Both open as 32-bit images in Photoshop but the image that came from publisher has lost it's range and it behaves just like an 8-bit image. I attach an example where I lowered the exposure in Photoshop to show the difference. Is this difference for a reason or is it a mistake?
/Karl W

Re: Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Ottenstein — Thu, 04 Mar 2021 17:10:28 GMT

You have no signature... What version of ARCHICAD (version and build number)? What operating system?

Re: Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Wir_n — Thu, 04 Mar 2021 17:39:47 GMT

Thank's for your response Karl! Here's my information:

Version Lang Build Platform Type
24 SWE 3022 Win64 FULL

Windows 10

Re: Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Ottenstein — Thu, 04 Mar 2021 20:51:21 GMT

Karl wrote:
Thank's for your response Karl! Here's my information:

Version Lang Build Platform Type
24 SWE 3022 Win64 FULL

Windows 10

Thanks, Karl! 🙂

Before I try to reproduce - could you update to the current release for SWE, which is build 4018?

https://graphisoft.com/resources-and-support/downloads?localization=SWE&type=AC&version=24

If you get the same result from Publisher there, post back and I or someone will look into it. (I didn't even know 32 bit TIFF was an option... thought it as 8 or 16 bit.)

BTW: I'm on Mac, so if anyone reading this thread is on Windows... please jump in to reproduce in case this is a Windows version related issue.

Re: Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Wir_n — Fri, 05 Mar 2021 12:33:22 GMT

Ok, I'm back after an update to the latest version and a restart of Archicad. I can't find any documentation in the list of improvements but the problem seems to be solved!
However I would like to post a tip not to use any post effects like color mapping or color correction in the render settings if you wish to save in 32-bit. This was not my issue but it would also clamp the range and give the same behavior.
Thank you Karl Ottenstein for helping out.
/Karl W

Re: Rendered image saved in 32-bit Tiff via publisher is not a full range 32-bit?

Karl Ottenstein — Fri, 05 Mar 2021 18:50:42 GMT

Good news. Thanks for posting back that it is resolved in the update.