A 1920x1080 size image at 32-bits of color requires 8MB of space if the image isn't compressed at all. If the image you saved is stored as a .bmp file, then yes, there is a loss of quality. If the image is saved as a .png file, then it is quite possible that the quality is the same as the one you see on the screen.

Size =/= Quality.

Spot on.

But I must nitpick, no games use 32-bit color. Maybe they will start using something like that now that there's some pressure to have more than 8 bits per channel (for less banding & higher dynamic range).

So a raw screenshot with all the three color channels has 24 bits (or 3 bytes) per pixel and the whole frame is then 1920*1080*3 ~= 6 megabytes.

If the screenshots are jpegs, then a size of 3 megabytes at that resolution indicates a very high quality.

Btw, is it possible to disable the hotkey, if I'd wish to use a third party app?

Hi everyone,

I came to the forum looking for anyone with the same problem. To be honest, the quality of the screenshots IS quite low. I am playing at 3440x1440 and the image quality is WAAAAY better than what is captured on the screenshots (see attachment).

http://imgur.com/Nmtcbri

I am not sure if this is a bug with high resolution formats, or if GOG is planning to select the level of compression.

Can you please post the *original* file somewhere for download? Last I looked into it, imgur totally rapes your picture. Even if you were logged in, I do not trust that site not to mess with the file. In any case, the jpeg I got from imgur is ~128kB in size, which is indeed ridiculous for that resolution. And yes it does look bad.

In addition to the original galaxy screenshot, it'd be nice to get a lossless screenshot produced by the game itself (if it can) or some other program that can take screenshots for you. For comparison. That could help figure out what kind of parameters they've used for encoding and maybe bring it to light if there's a bug in the jpeg encoder they use...

I must nitpick your nitpick. He said 32bit image, as in screenshot, which is perfectly accurate when talking about .PNG. 4 channels (RGBA) of 8 bits each = 32bit. You're right that the actual color information is only 24bit, but if you save the image in a format which includes an alpha channel, each pixel contains 32 bits of information. Compressed formats will reduce this of course.

And did I say it was inaccurate? Did I ever contradict that? No, I did not.

Yes, he specified a 32 bit image format and he could've specified a 1024 bit or 8 bit indexed image format and my point stands still. My point was entirely to point out a fact about the raw data you want from the game, not to correct or say anything about the potentially redundant arrangement of channels some arbitrary file format might be used to encode.