- From: Thierry MICHEL <tmichel@w3.org>
- Date: Sat, 13 Aug 2005 00:30:48 +0200
- To: "Glenn A. Adams" <gadams@xfsi.com>
- CC: Chris Lilley <chris@w3.org>, W3C Public TTWG <public-tt@w3.org>
Chris, If you require any further follow-up please do so, and if you are satisfied with the TTWG response, please acknowledge it by replying to this mail and copying the TTWG public mailing list: public-tt@w3.org Regards, Thierry Michel Glenn A. Adams a écrit : >Dear Chris, > >Thank you for your comments, [1], on the DFXP Last Call Working Draft >[2]. The TT WG has concluded its review of your comments and has >agreed upon the following responses. > >If you require any further follow-up, then please do so no later than >September 1, and please forward your follow-up to <public-tt@w3.org>. > >Regards, >Glenn Adams >Chair, Timed Text Working Group > >************************************************************************ > >Citations: > >[1] http://lists.w3.org/Archives/Public/public-tt/2005May/0000.html >[2] http://www.w3.org/TR/2005/WD-ttaf1-dfxp-20050321/ > >************************************************************************ > >Comment - Issue #15 [1]; 27 May 2005 16:01:28 +0200 > >a) what is the color space for the RGB values (I expect it is sRGB, but >the spec does not say so) > >Response: > >The intention is to use sRGB. We will ensure the specification >normatively reflects this intent. > >************************************************************************ > >Comment - Issue #15 [1]; 27 May 2005 16:01:28 +0200 > >b) Do rgba values represent premultiplied values or not? > >Response: > >The RGB components of an RGBA tuple expressed by the rgba() function >are NOT premultiplied by alpha; we believe this matches the >interpretation used by CSS3 Color Module. We will ensure the >specification normatively reflects this intent. > >************************************************************************ > >Comment - Issue #15 [1]; 27 May 2005 16:01:28 +0200 > >c) Is the opacity channel linear, or not? > >Response: > >The intent is to be linear. We will ensure the specification >normatively reflects this intent. > >************************************************************************ > >Comment - Issue #15 [1]; 27 May 2005 16:01:28 +0200 > >d) What color space is used for compositing of two rgba values? > >Response: > >The intent is that the input and output color spaces from the >compositing function are all sRGB. We will ensure the specification >normatively reflects this intent. > >************************************************************************ > >Comment - Issue #15 [1]; 27 May 2005 16:01:28 +0200 > >Also, in section 8.3.12 <namedColor> >the same comment applies (I assume the answers are the same). > >Response: > >The intent is to use sRGBA. We will ensure the specification >normatively reflects this intent. > >************************************************************************ > > > >
Received on Friday, 12 August 2005 22:31:08 UTC