Re: [csswg-drafts] [web-animations-1] Additive transform animations easily invoke undesirable matrix interpolation (#2204)

You're absolutely right that this doesn't actually solve the general problem due to multiplication of percentages and other context-sensitive values. It might still simplify a lot of common cases though, i.e. multiple subsequent translations / scales could be internally coalesced into a single one as the shape is no longer important.

I also would find this composition behavior closer to what I would expect as a developer, not having the underlying value affect the new interpolation.

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