[fxtf-drafts] [filter-effects-1] Should `kernelUnitLength` be deprecated for `feSpecularLighting`? (#615)

caugner has just created a new issue for https://github.com/w3c/fxtf-drafts:

== [filter-effects-1] Should `kernelUnitLength` be deprecated for `feSpecularLighting`? ==
The `kernelUnitLength` attribute in Filter Effects Module Level 1 was deprecated for `feConvolveMatrix` and `feDiffuseLighting` in https://github.com/w3c/fxtf-drafts/commit/b263c592fecdb774545689051f5f747c041fdc6b based on https://www.w3.org/2013/11/15-svg-minutes.html#:~:text=kernelUnitLength:

> RESOLUTION: We will keep kernelUnitLength but add a note explaining why it's not great, and that we may have something different in the future.

However, it was not deprecated for `feSpecularLighting`, and it is not clear (at least to me) if this was intentional or an oversight.

Can you clarify if `kernelUnitLength` is also deprecated for `feSpecularLighting`?

(This came up in https://github.com/mdn/browser-compat-data/issues/28178.)

Please view or discuss this issue at https://github.com/w3c/fxtf-drafts/issues/615 using your GitHub account


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Received on Tuesday, 14 October 2025 08:31:35 UTC