Author Topic: Corona Image Editor writes (possibly) corrupt TIFF  (Read 732 times)

2023-11-16, 08:50:38

zaar

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Hello,

Is there any known limitation to resolution or file size when it comes to tiff?

I've rendered to CXR, and I save as TIFF from Corona image editor, and suddenly nothing will open the files. Saving as PNG works. The only thing I have changed in the setup, apart from geometry and materials is that I bumped the resolution from 11600x7733px to 12000x8000px. Either the output is corrupt or Photoshop can't read it. But photoshop can create, save and read a Tiff of that size so I don't think that's the problem.

2023-11-16, 10:15:26
Reply #1

pokoy

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If I'm not mistaken PS won't open Tifs from CIE when they're 16bits with alpha. Try different options and see if that helps.
Tifs from CIE always have been handled differently in PS, not sure why. I reported that a while ago but the answer was they work as expected in other apps so no need to check.

2023-11-16, 10:24:21
Reply #2

zaar

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Thanks for the suggestion but I'm sure I'm saving without alpha, but in 16-bit. Tried it again now to triple check, and I've been doing the same thing for months without trouble. It's just the resolution that I can think of that was different this time. PNG worked though. Been avoiding PNGs because transparency is annoying in Photoshop if there's an alpha, and many years ago I heard from someone that IKEA banned the use of PNGs internally because the PNG plugin in max was very slow or something. Not sure if that latter was true or if it's true today.