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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Why GIMP Is Better Than Photoshop
Date: Mon, 6 Jan 2025 01:24:47 -0000 (UTC)
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On Sun, 5 Jan 2025 15:51:51 -0500, -hh wrote:

> ... needs to explain how & why it is significant for
> there to be floating point at all, since the input sensor is integer
> based ...

OpenEXR files are commonly used in CG these days, and they have floating-
point numbers for each pixel component. They also allow for more than 3-4 
pixel components. The values still have their usual meaning, with 0 being 
full black and 1.0 being full white, but the values are allowed to go 
outside this range to avoid clipping of dynamic range.

GIMP’s GEGL pixel engine deals natively with such things. Photoshop needs 
to use import/export filters which inevitably lose quality. This is 
probably why Adobe products are not used much in VFX work.