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lloydbu

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  1. Like
    lloydbu got a reaction from OldRadioGuy in Alpha channel bug in plug-in API   
    Wonderful!
  2. Like
    lloydbu got a reaction from anon1 in Alpha channel bug in plug-in API   
    Hi,
     
    I’m the author of the Flaming Pear plug-ins. Recently, customers have asked for support for Affinity Photo.
     
    It appears the plug-ins don’t quite work correctly because Affinity often misreports the pixel format. In particular, 
     
    - the FilterRecord’s filterCase field always contains the undefined value zero
     
    - four-plane RGB+A data is reported as just three planes. So plug-ins are unable to access the alpha channel, which, upon exit, is full of garbage values.
     
    I’ve attached a document summarizing how Photoshop and Affinity report the pixel data differently. If this could be fixed, it would likely repair the compatibility problem with many vendors' plug-ins.
     
    Affinity Photo alpha channel reporting bug.pdf
     
    -Lloyd Burchill
     
     
     
  3. Like
    lloydbu got a reaction from anon1 in Alpha channel bug in plug-in API   
    Hi,
     
    I’m the author of the Flaming Pear plug-ins. Recently, customers have asked for support for Affinity Photo.
     
    It appears the plug-ins don’t quite work correctly because Affinity often misreports the pixel format. In particular, 
     
    - the FilterRecord’s filterCase field always contains the undefined value zero
     
    - four-plane RGB+A data is reported as just three planes. So plug-ins are unable to access the alpha channel, which, upon exit, is full of garbage values.
     
    I’ve attached a document summarizing how Photoshop and Affinity report the pixel data differently. If this could be fixed, it would likely repair the compatibility problem with many vendors' plug-ins.
     
    Affinity Photo alpha channel reporting bug.pdf
     
    -Lloyd Burchill
     
     
     
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