All I know is RGB/RGBA (8 bits per channel, or lower), not what would happen with 4x the amount of color data (or after reading that wiki page, maybe it's not explicitly color data, but indices to color data?). As far as I understand, I'm not using 32 bits per channel in any of my examples. I'm not even sure how that would work.
Paint tool sai layer mask 32 bit#
I'm fully aware that png can support 8,16 and 32 bit per channel, but that's not how it works, using 32 per channel you're turning a regular image into a sort of hdri. That is why you got the background oversaturated. What I know for sure is that if you want to include extra linear data in an image, safeguarding colors 100%,png is too prone to errors and/or degraded color and/or quality, and the way to go is tga. Probably there is a separate control in Sai for bit depth, I don't know. But as soon as you turned to a quite saturated background that raised issues. Your examples were too simplistic in terms of color data, reason why it looked like it worked. The dialog box would ask the same even when I work on height maps at 16bit depth, the channel data is represented as a list of 8 bit entries to know how many channels to export/are included.
With an 8 bit per channel based image, adding an alpha would total up to 32 bit and that's what PS ask when exporting tga: use 24 or 32 bit to represent the channels? Basically asking how many channels to include. This is the culprit and why I was saying to use tga. Reimporting that same image into PS and looking at the channels, the alpha you wisely crafted won't show up, leaving you with rgb only, and the alpha is written in the pixels within the other 3 channels. Conversely your attempt in photoshop, which defines bitdepth separately in a menu, that didn't happen so harshly like it did in SAI, but this doesn't mean that your process is color- safe. That is why you got the background oversaturated. I'm fully aware that png can support 8,16 and 32 bit per channel, but that's not how it works, using 32 per channel you're turning a regular image into a sort of hdri. Now, let's not confuse the support of per channel bit depth with the need of an 8 bit per channel over 4 channels. This means that the over operation will multiply the RGB emissions by the alpha, and cannot represent emission and occlusion properly. (Yes, it's obviously a 32-bit PNG.Īlpha storage can be "associated" ("premultiplied") or "unassociated", but PNG standardized on "unassociated" ("non-premultiplied") alpha, which means that imagery is not alpha encoded the emissions represented in RGB are not the emissions at the pixel level.
Paint tool sai layer mask install#
I'll probably have to just install a new program if I want to mess with emissive stuff at all, because SAI just doesn't handle these properly for whatever reason :sĪgain, I saved the images as PNG with the absolute default settings. I'm definitely starting to think it's a SAI problem. Still pitch black with texture getting eaten. I just followed along with the SAI example there and. Merging the two layers before saving didn't help at all, so this might actually be a problem with SAI rather than anything messed up. It looks extremely harshly saturated, the color levels are all over the place. I think we're onto something now. Though, curiously the wall looks nothing like the original texture I used. It's trasparent except for the glowy bits, and the background is 1% opaque. Same in Paint Tool SAI finally, it even specifically asks which type of PNG to save:Īlthough it looks like the background is solid white - it isn't. ignore the color and make them transparent. The point I'm trying to make here is - don't paint the unwanted areas black or white. The mountains are 1% opacity, with the ones in the background increasing from 30%, 50%, 70%, to 100% for the main sky.Īgain, I saved the images as PNG with the absolute default settings.
Here I've done the same process in Photoshop, making the sky emissive: The right-side screenshot is the one I exported.
The left-side screenshot in my previous picture had the black background for clarity of what the pattern was. There's nothing there besides the red pattern. Doesn't the green-and-blue gradient count as a "landscape picture?" That layer is enabled, it's just 1% opacity. The black layer is disabled, it does not get saved with the picture.
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