PHOTOSHOP - Background Grid Pattern Affected By 32 Bit Preview Exposure Setting

  • 1
  • Problem
  • Updated 4 years ago
  • Acknowledged
  • (Edited)
When working with 32 bit files with transparent areas, the background pattern is affected by changes to exposure in the 32-Bit Preview Options. As in it will move towards white/black as you increase/decrease the exposure preview.
Surely this is not intended behaviour? Transparent areas should stay transparent, with the background pattern remaining unaffected, no?
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Mark Fisher

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Posted 4 years ago

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Chris Cox

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No, that is not intended. My guess is it's a bug in the image drawing code somewhere. The transparency grid appearance should not change with preview options or adjustment changes.

What OS version are you using?
What Photoshop version are you using?
Do you have GPU drawing enabled? If so, is it set to "Basic", "Normal", or "Advanced"?
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Mark Fisher

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I am using Mac Version 2014.2.2.

I had GPU drawing enabled and in advanced mode. Changing/disabling it did not make a difference though.
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Chris Cox

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What OS version are you using?

And after changing or disabling the GPU, you need to restart Photoshop to have all the changes take effect.
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Chris Cox

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I can reproduce the problem, but only with GPU drawing enabled.
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Mark Fisher

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Ah O.K I didn't restart. Checking again, for me the problem only occurs with drawing mode in advanced and medium, but not basic.

I am signed up to the Apple Beta program and am using Mac OS 10.10.3.
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Chris Cox

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That means it's a problem with the implementation of GPU shaders for color management of the document display.