- From: Erik Dahlstrom <ed@opera.com>
- Date: Mon, 18 Apr 2011 10:27:20 +0200
- To: "public-fx@w3.org" <public-fx@w3.org>, ddailey <ddailey@zoominternet.net>, "Doug Schepers" <schepers@w3.org>
Hi David, I'd be happy to hear some more details about that filter. Is it a simplified syntax for displacementmap transforms? Because it looked to me like it could be done with feDisplacementMap and gradients. On Sat, 16 Apr 2011 19:08:06 +0200, Doug Schepers <schepers@w3.org> wrote: > Forwarding to FXTF list, since we are now working on filters as a joint > SVG-CSS project. > > -------- Original Message -------- > Subject: another filter to consider? > Resent-Date: Sat, 16 Apr 2011 15:57:01 +0000 > Resent-From: www-svg@w3.org > Date: Sat, 16 Apr 2011 11:53:55 -0400 > From: David Dailey <ddailey@zoominternet.net> > To: <www-svg@w3.org> > > > > Internet Explorer/ HTML/CSS has had, for at least 10 years, something > present, I think, in versions 5 through 9, a wave filter. See > > http://srufaculty.sru.edu/david.dailey/javascript/ani/waves.html . > > If you don’t have IE, basically, it allows sinusoidal distortion of an > image (until today I always used jpgs but today I discovered that it > also works in IE9 with <img src=”file.svg”>, though the wave distortion > is applied to a pixel-based rendition of the SVG file). It’s not quite > as flexible, as I recall, as the bivariate sinusoidal wave function in > Adobe Photoshop (that allows arbitrarily many generators to be added to > the transform), but it is a step in the right direction! > > Anyhow, it is more what, in SVG, we would call a “transform” than a > “filter”, but this sort of transform as well as projections (conic, > spherical, and so forth) would be nice additions as well. I think the > underlying math is probably simpler than the non-affine transforms being > discussed for SVG 2.0. > > Applications are, as always, artistic, scientific and geographic. > > Regards > > David > -- Erik Dahlstrom, Core Technology Developer, Opera Software Co-Chair, W3C SVG Working Group Personal blog: http://my.opera.com/macdev_ed
Received on Monday, 18 April 2011 08:27:54 UTC