[MPEG-OTSPEC] COLR v1 updates for AMD 2

[Chris Lilley]

Thanks for making these revisions in response to feedback, Peter. This 
is looking very good now.

On 2021-02-22 15:34, Peter Constable wrote:
>
> At the last SC29/WG3 meeting, a few open issues regarding COLR v1 were 
> discussed with consensus to have these addressed in the working draft. 
> These included some details regarding radial gradients in certain edge 
> cases, interpolation of colours in gradients, and handling of sRGB 
> colours (linear vs. non-linear scales) in blending. Since then, a few 
> other issues were also identified through review of the WD or in work 
> on implementations.
>
> Â
>
> With input from Google partners, Chris Lilley, Vlad, Just van Rossum, 
> and engineers at Microsoft, I’ve made revisions in the proposed WD 
> in the Google Fonts repo 
> <https://github.com/googlefonts/colr-gradients-spec/blob/master/OFF_AMD2_WD.md> 
> for these various issues:
>
> Â
>
>   * Issue #39: Add support for sweep gradients in COLR v1
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/39>
>   * Issue #40: In COLRv1 current design for linear gradients doesn't
>     work well with transforms
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/40>
>   * Issue #41: [AMD2 WD: COLR v1] Address "TBDs" in working draft
>     regarding open issues on radial gradients
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/41>
>   * Issue #42: [AMD2 WD: COLR v1] Address "TBD" in working draft
>     regarding interpolation of colours
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/42>
>   * Issue #43: [AMD2 WD: COLR v1] Add paint formats for more compact
>     representations in non-variable fonts
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/43>
>   * Issue #44: [AMD2 WD: COLR v1] Add discussion of bounding box and
>     transformation in variable fonts
>     <https://github.com/MPEGGroup/OpenFontFormat/issues/44>
>
> Â
>
> Links to relevant pull requests in the Google Fonts repo are provided 
> in the comments for each issue.
>
> Â
>
> Along the way, there were other smaller revisions made in the proposed WD.
>
> Â
>
> Â
>
> Â
>
> Peter
>
>
> _______________________________________________
> mpeg-otspec mailing list
> mpeg-otspec at lists.aau.at
> https://lists.aau.at/mailman/listinfo/mpeg-otspec

-- 
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.aau.at/pipermail/mpeg-otspec/attachments/20210222/66e65ea5/attachment.html>