https://bugs.kde.org/show_bug.cgi?id=375217

--- Comment #4 from wolthera <griffinval...@gmail.com> ---
Well, I am somewhat surprised that you need 32bit float per channel, 8bit
integer per channel is the maximum 90% of all computers can show at all...

The discolouration might be caused by converting from a linear to a
gamma-corrected colorspace, which changes the result of layer blending. You can
try merging all layers together before converting to avoid that type of change.

People often confuse 8bit per channel with 8bit color in total. The latter is
like the maximum colors gif can have, 2^8=256. But 8bit per channel is that per
color channel, so for RGBA, that is 4 channels, 8*4=32 so the total amount of
colors in a 8bit per channel image is 2^32, which is a bit more than 16
million, and quite a bit more than 256 colors. :)

32bit float per channel then is 32*4=128, so it's 2^128 colors, which is kinda
a lot.

You can use applications like blender to render exrs to video files, but unless
you are doing specialised things with mixing colors, you should not be needing
32bit float per channel. I am telling you this because it can make your files
super-big. It's like, the type of color quality used for Hollywood movies, it
seems a bit odd to use it for small gifs :D

There's more on it in the manual:
https://docs.krita.org/Bit_Depth
https://docs.krita.org/Gamma_and_Linear
https://docs.krita.org/Color_Managed_Workflow#Exporting

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