Is there any particular reason the RGB channels get zero'd out when saving with an alpha of 0? I feel like this used to work as I'd expect... I'm storing coefficients in RGBA for a texture in a rendering engine and it's destroying those color channels on me. I think Photoshop also has this same behaviour and there's a years-long argument still going on about whether or not it's the proper thing to do. My feeling is preserving RGB when A is 0 is more likely the "correct" thing (as opposed to setting RGB to black). Certainly it's significantly more useful.
Or is there a plugin or something I can use to not get that behaviour and preserve the RGB channels?
PNG color channels going to black with alpha of 0
in Paint.NET Discussion and Questions
Posted
Hi,
Is there any particular reason the RGB channels get zero'd out when saving with an alpha of 0? I feel like this used to work as I'd expect... I'm storing coefficients in RGBA for a texture in a rendering engine and it's destroying those color channels on me. I think Photoshop also has this same behaviour and there's a years-long argument still going on about whether or not it's the proper thing to do. My feeling is preserving RGB when A is 0 is more likely the "correct" thing (as opposed to setting RGB to black). Certainly it's significantly more useful.
Or is there a plugin or something I can use to not get that behaviour and preserve the RGB channels?