Re: [css shaders] comment on grid dimensions

On Monday, October 3, 2011, 11:49:03 PM, Vincent wrote:

VH> Hi Chris,

VH> Thanks for your quick feedback!

Its a fine, clear specification and the accompanying blog post was very helpful too.

Its a pleasure to read, which is not always true of specifications here at W3C :(

VH> I have created a page to track the issues and added this one:


VH> the proposal I put is to accept your suggestion.

Great, thanks.

VH> Kind regards,
VH> Vincent.

VH> From:  Chris Lilley <>
VH> Reply-To:  Chris Lilley <>
VH> Date:  Mon, 3 Oct 2011 14:38:19 -0700
VH> To:  FX <>
VH> Subject:  [css shaders] comment on grid dimensions

VH> Hello FX,

VH> This is a comment on

VH> In section 3.2.1. The ’vertexMesh' attribute, note 8 it says

VH>   It may be confusing to have the vertexMesh attribute represent the
VH>   number of additional lines and columns. May be it should simply be
VH>   the number of lines and columns, default to 1 1 and require integral
VH>   values equal or superior to 1.

VH> I agree it could be confusing, and I think it would be better to have
VH> the default be 1 1, meaning a grid of one row and
VH> one column.

VH> So if I want a 7x4 grid I can just say 7 4 instead of 6 3.

VH> CSS can and does restrict <number> values to positive numbers if
VH> needed (positive meaning zero is not allowed; the alternative is
VH> non-negative, which allows 0,1,2 etc).

 Chris Lilley   Technical Director, Interaction Domain                 
 W3C Graphics Activity Lead, Fonts Activity Lead
 Co-Chair, W3C Hypertext CG
 Member, CSS, WebFonts, SVG Working Groups

Received on Monday, 3 October 2011 21:56:17 UTC