- From: <bugzilla@jessica.w3.org>
- Date: Fri, 07 Nov 2014 14:26:46 +0000
- To: public-css-bugzilla@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=25411
tavmjong@free.fr changed:
What |Removed |Added
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CC| |tavmjong@free.fr
--- Comment #2 from tavmjong@free.fr ---
The 'specularExponent' attribute in 'feSpecularLighting' and in 'feSpotLight'
describe two different phenomena:
'feSpecularLighting'
Here, the 'specularExponent' represents how light is scattered by a surface.
A low value represents a surface that scatters light in all directions while a
high value is more mirror like.
The value is used as described in 8.19 (feSpecularLighting).
'feSpotLight'
Here, the 'specularExponent' represents how focused is the beam of light. A
low value represents a spotlight that is diffuse while a high value represents
a spotlight that is highly focused.
The value is used as described in 8.10 (feDiffuseLighting)
A sentence should be added in section 10.4 (feSpotLight) to direct the reader
to 8.10 for how the value of 'specularExponent' in feSpotLight is used. An
additional sentence might be useful to warn the reader of the two different
uses of 'specularExponent'.
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Received on Friday, 7 November 2014 14:26:47 UTC