Re: [csswg-drafts] Clamping values and additive animation (#12648)

• From: Kevin Doughty via GitHub <noreply@w3.org>
• Date: Wed, 27 Aug 2025 09:38:25 +0000
• To: public-css-archive@w3.org
• Message-ID: <issue_comment.created-3227494699-1756287502-noreply@w3.org>

I was right the first time. The problem is under-specification. The only useful form of additive animation has been arbitrarily restricted.
```
if context.for_smil_animation {
    // SMIL expects to be able to interpolate between out-of-range
    // opacity values.
    value
} else {
    value.min(1.0).max(0.0)
}
```

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Received on Wednesday, 27 August 2025 09:38:25 UTC