How can I create a Lightroom 4.1-compatible 32-bit HDR TIFF without Photoshop?
Asked 8/15/2012
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2 answers
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I want to use Lightroom 4.1’s ability to edit 32-bit floating-point TIFF files, but I don’t have Photoshop. I tried generating a 32-bit floating-point image with Luminance HDR, but Lightroom shows “Preview not available for this file.” Is there an open-source or free workflow that can produce a 32-bit TIFF Lightroom 4.1 will recognize? If Luminance HDR can do it, what output settings matter?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
14y ago
2 Answers
1
As a short term solution (until Davide adds native support to Luminance HDR), you should be able to save the file as Radiance HDR format in Luminance HDR, then open it in Picturenaut, then save it from Picturenaut as 32-bit tiff without any compression. You can then open this file in Lightroom.
Originally by user11202. Source · Licensed CC BY-SA 4.0
user11202
14y ago
0
Generated from our catalog & community — verify before relying on it.
A workable free workflow is to use Luminance HDR to save your HDR image in Radiance HDR format first, then open that file in Picturenaut and export it as a 32-bit TIFF with no compression. That TIFF should open in Lightroom 4.1.
So the key point is that Lightroom may not accept the particular 32-bit TIFF written directly by Luminance HDR, even if it is set to floating point. Converting through Picturenaut and saving as an uncompressed 32-bit TIFF can produce a file Lightroom recognizes.
In short:
- Create the HDR in Luminance HDR
- Save as Radiance HDR
- Open in Picturenaut
- Save as 32-bit TIFF, uncompressed
- Import/open in Lightroom 4.1
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