Post #1825505
2026-04-16 08:53 UTC
Additive blending in the linear color space naturally builds values above SDR white, creating XDR headroom. One layer even uses the "extended gray" colorspace, showing that the pipeline works outside the limits of clamped sRGB. (4/6)
Replies (1)
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@vancura@mastodon.design 2026-04-16 08:53
Now, to try this in your own app, use Xcode 15 or later and target macOS 14 or later. In the asset catalog, open AppIcon. You’ll see an Icon Composer with named layers instead of just image wells. Turn on "Lighting Effects" (which enhances highlights for a more three-dimensional look) for layers that need bright highlights. Set the specular group blend mode to "Plus Linear" (to enable additive brightness). (5/6)