[Bug 25411] Confusion over the specularExponent attribute

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25411

--- Comment #1 from Dirk Schulze <dschulze@adobe.com> ---
(In reply to Paul LeBeau from comment #0)
> I am implementing the lighting filters at the moment and struck a confusing
> point in the spec.
> 
> Both <feSpecularLighting> and <feSpotLight> have a specularExponent
> attribute.  But the spec makes no effort to distinguish when each should be
> used.
> 
> The confusion applies especially when using feSpecularLighting with an
> feSpotLight.
> 
> At the moment I am assuming that the spotlight one is to be used when
> calculating the spot light colour as per the formula in section 8.10
> (feDiffuseLighting). And the one from feSpecularLighting is to be used when
> calculating the final pixel colour as per the formula in 8.19
> (feSpecularLighting).
> 
> Have I got that correct?  Either way, I believe the spec should be clarified.
> 
> From my testing, it appears some browsers have bugs related to this issue.

Could you upload your example please? How do SVG viewers differ? Which viewers
did you test?

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Received on Friday, 7 November 2014 07:52:01 UTC