SVG format - filter support

Hello!

Does QT 4.6.3 support filter in SVG format? For example:

Code:

---

<filter id="MyFilter" filterUnits="userSpaceOnUse" x="0" y="0" width="200" height="120">
[...]
</filter>

---

If yes, how can I enable it? Because now I don't think it works.

thanks in advance
best regards
Tomasz