12.56 OpenEXR - comprehension question

[herb]

Hello Phil,

thanks for the new version 12.56 of ExifTool.

As a curious developer I have a question to the changes/modifications of OpenEXR:
In version 12.55 tag "Layout" had values with key = 0 and 512
In version 12.56 this tag (now called) "Flags" has values with key = 512, 1024, 2048 and 4096.

Why has value with key = 0 been removed?

Thanks for your help in advance
Best regards
herb

[Phil Harvey]

Hi Herb,

The 0 was lack of a flag.  Lack of the Tiles flag means that the layout is "Scan Lines".  The new version indicates only flag bits that are set.

- Phil