i would like to know, which techniques should i use to apply svg filters to raphael paths?
I know that raphael tries to be as much cross browser with IE it can, but
I built a library to do this. You can do something like:
var paper = Raphael("test");
var circle = paper.circle(100, 100, 50, 50).attr({fill: "red", stroke: "black"});
circle.emboss();
Have a look at a fiddle: http://jsfiddle.net/chrismichaelscott/5vYwJ/
or the project page: http://chrismichaelscott.github.io/fraphael