Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Lawrence D'Oliveiro Newsgroups: comp.os.linux.advocacy Subject: Re: Why GIMP Is Better Than Photoshop Date: Mon, 6 Jan 2025 01:24:47 -0000 (UTC) Organization: A noiseless patient Spider Lines: 15 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 06 Jan 2025 02:24:48 +0100 (CET) Injection-Info: dont-email.me; posting-host="ab784ba7ba6b36eb7fc7c3f5d05b5c3d"; logging-data="1371473"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19BRlUG1KGLY6ZbKkvypTcJ" User-Agent: Pan/0.161 (Chasiv Yar; ) Cancel-Lock: sha1:Qk48NqLGB7TIQCrt1xRJ7Lv5pqA= Bytes: 1774 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.