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BrianP

.EXR File Place vs. Import - Alpha Question

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We seem to be getting different results when placing 32-bit EXR files vs. when opening them directly.  I am aware of the 3 options in the preferences for controlling how the Alpha channel is handled, but none of these options seem to affect how the image is handled when being placed, which is our typical workflow.  If I place an EXR into a new blank doc, it at first looks like the Alpha channel has been applied, and the background is totally white, but if I put a black pixel layer behind it, the background appears as normal.  The results are the same when Placing a file as they are when opening a file with all three EXR options checked.  What is odd, is that the Alpha appears says it is fully black and white with values of 0 and 1. I tested this by creating a grayscale layer. We are not sure how to either expose the background or totally block it without duplicating the existing composite Alpha.  

Thank You,

Brian

2018-11-21 15_07_35-Affinity Photo.jpg

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That was a new document.  You example is the opposite of what we are looking for sometimes.  Where is the background?

  1. Open any 32 bit EXR file and place the same file back into itself.
  2. Create a new file at RGB/32 and the issue is reproducible.
  3. I do not always want the placed document's background to be transparent.  I want to see the full color version of the background and maintain access to the alpha channel.
  4. The real world issue is as I add each of my V-Ray render elements, the background is multiplied over and over again.

NewFile.afphoto

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