- From: Timed Text Working Group Issue Tracker <sysbot+tracker@w3.org>
- Date: Thu, 30 May 2013 14:25:54 +0000
- To: public-tt@w3.org
ISSUE-234 (Drop Shadow): Drop Shadow character style [TTML.next] http://www.w3.org/AudioVideo/TT/tracker/issues/234 Raised by: Pierre-Anthony Lemieux On product: TTML.next [The following is extracted from the liaison received from SMPTE at https://lists.w3.org/Archives/Member/w3c-archive/2012Sep/0214.html] See Section 6.4.3, 6.4.8 and 6.4.12 at ST 428-7. It shall be possible to apply a drop shadow style parameter to a <span> element for the purpose of altering the contrast of the rendered text against the primary picture. The application of the parameter shall result in the drawing of a drop shadow behind each character, falling diagonally to the bottom and right of each character. It shall be possible to specify the color (including alpha channel) and thickness of the drop shadow. The thickness shall be expressed as a positive decimal number in units of em. The drop shadow effect shall remain on the bottom and right of each character, whatever the progression direction.
Received on Thursday, 30 May 2013 14:25:59 UTC