Since the removal of the ability to use the Adobe Camera Raw filter on 32 bit images in Photoshop, the workaround to use Adobe Camera Raw on a 32 bit Smart Object and retain the ability to readjust the 32 bit - 16bit ACR tone mapping later* involves :
1. Save the 32 bit image in Photoshop as a TIFF
2. Import to Lightroom
3. In Lightroom use menu Library >Convert Photo to DNG
4. Then use menu Photo> Edit in > Open as Smart object in Photoshop.
This opens a 16 bit document but with the 32 bit image in the Smart object that can be adjusted with camera raw just by double clicking on the object.
I would like the ability to cut out the round trip with a menu item to Convert 32 bit image to "DNG" Smart object.
This would help anyone working with 32 bit textures imported from other 3D programmes as well as 32 bit images created in Photoshop.
* Flattening and converting to 16 bit via ACR, in Photoshop, is a one off and, unlike a smart object cannot be readjusted later
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