Re: [csswg-drafts] [css-color-4] Channel clipping breaks author expectations, especially when using 'perceptually uniform' spaces (#9449)

> The point on the left is the point that is specified, but it's far outside of the gamut. As we extend the dynamic range, it comes to fall within the extended gamut.

Correct. A GMA will at first present it as a color of the correct lightness and hue but severely reduced chroma. As the dynamic range expands then the same GMA will present it as a color of the correct lightness and hue but increasingly greater chroma, until eventually it is displayed correctly.

A naive clip will mangle the lightness, hue and chroma as the gamma-encoded color components get sliced off, altering the proportional light contribution from the three primaries and thus generating different colors.

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Received on Wednesday, 6 March 2024 19:09:24 UTC