| Summary: | Multiple blending tool is not working | ||
|---|---|---|---|
| Product: | [Applications] krita | Reporter: | kiawynne |
| Component: | Filter Layers | Assignee: | Krita Bugs <krita-bugs-null> |
| Status: | RESOLVED NOT A BUG | ||
| Severity: | normal | CC: | griffinvalley |
| Priority: | NOR | ||
| Version First Reported In: | 4.0.3 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
|
Description
kiawynne
2018-05-20 21:01:56 UTC
Are you using it on a CMYK layer? argh Yes I am!
Sent from my iPhone
> On 20 May 2018, at 22:08, wolthera <bugzilla_noreply@kde.org> wrote:
>
> https://bugs.kde.org/show_bug.cgi?id=394493
>
> wolthera <griffinvalley@gmail.com> changed:
>
> What |Removed |Added
> ----------------------------------------------------------------------------
> Resolution|FIXED |WAITINGFORINFO
>
> --- Comment #2 from wolthera <griffinvalley@gmail.com> ---
> argh
>
> --
> You are receiving this mail because:
> You reported the bug.
Okay, so what is going on here is that CMYK in Krita does it's blending modes in CMYK, unlike photoshop, which does all blending modes in RGB regardless of colorspace. Because going between rgb and cmyk requires a conversion, it can mess up the image if you're not careful, and is at the least slower. So hence we don't do it. In RGB the lowest value is black and the higher value is white, and multiply works as such that the values reduce, thus become darker. As for cmyk the lowest value is white and the highest value black, so multiply still makes the values lower, but they become brighter. Due this, it's recommended to do your image in RGB and only convert it to CMYK for some final touch ups when done. So this is not a bug, but a technical difference, hence I am closing it as invalid. https://docs.krita.org/Basic_Concepts#Colors https://docs.krita.org/Color_Models#CMYK |