- From: Isaac Muse via GitHub <sysbot+gh@w3.org>
- Date: Mon, 18 Dec 2023 14:52:24 +0000
- To: public-css-archive@w3.org
They should be the same up to ~32 bit precision. Changes in the matrix are mainly out in the 64 bit portion. You can see, the inverse matrix before just had garbage in the 64bit portion: ```js const LabtoLMS_M = [ [ 0.99999999845051981432, 0.39633779217376785678, 0.21580375806075880339 ], [ 1.0000000088817607767, -0.1055613423236563494, -0.063854174771705903402 ], [ 1.0000000546724109177, -0.089484182094965759684, -1.2914855378640917399 ] ]; ``` Now the new matrix will give you a proper LMS of [1, 1, 1] for `oklab(1 0 0)` which matches the the XYZ to LMS portion of the transform. Before, this was off for 64bit values, which is why all achromatics had garbage in the 64bit part. ```js const LabtoLMS_M = [ [ 1.0000000000000000, 0.3963377773761749, 0.2158037573099136 ], [ 1.0000000000000000, -0.1055613458156586, -0.0638541728258133 ], [ 1.0000000000000000, -0.0894841775298119, -1.2914855480194092 ] ]; ``` -- GitHub Notification of comment by facelessuser Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/9651#issuecomment-1860706705 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Monday, 18 December 2023 14:52:27 UTC