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Hey guys, So I am having a problem with getting an alpha channel on a texture that is camera projected inside of Arnold. I can get the image to have transparency with a regular texture along the railing....but I cant duplicate that process for when I need to camera map onto the geometry in the background. The plane on the left with the green behind it is just showing that there is transparency along the top of the photo, and that the alpha channel is working. But above the green texture, that same railing does not have transparency, when the texture needs to be camera projected. Any advise? https://www.dropbox.com/s/8b419a5wog90s9k/Projection_Mapping_Alpha_Issue.jpg?dl=0