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I just upgraded to BC3 from BC2, and am having a problem with the new transparency feature in the Picture Compare viewer. In particular, I want to turn it off and only compare the RGB channels of my transparent PNG files. Is there a way to do this? I was unable to find anything relevant in the options dialog.
The images I am comparing are framebuffer dumps from programs testing 3D graphics APIs. The alpha channel of the image files is taken directly from the alpha channel of the framebuffer, which is not necessarily or even typically used for transparency. When scanning out to a monitor, graphics hardware typically ignores the contents of the alpha channel of the framebuffer.
I do have other tools whose picture comparison features are better suited for my purposes; perhaps that's the best solution for this scenario. However, I did use BC2 for these purposes because the directory compare capabilities were better than those in my other tools, and the picture compare tool (without transparency support) behaved as I wanted. The only thing I missed there was the ability to compare alpha channels.
Let me know if you have any suggestions.
The images I am comparing are framebuffer dumps from programs testing 3D graphics APIs. The alpha channel of the image files is taken directly from the alpha channel of the framebuffer, which is not necessarily or even typically used for transparency. When scanning out to a monitor, graphics hardware typically ignores the contents of the alpha channel of the framebuffer.
I do have other tools whose picture comparison features are better suited for my purposes; perhaps that's the best solution for this scenario. However, I did use BC2 for these purposes because the directory compare capabilities were better than those in my other tools, and the picture compare tool (without transparency support) behaved as I wanted. The only thing I missed there was the ability to compare alpha channels.
Let me know if you have any suggestions.
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