Other than that, the official SVG Filters specification can help perhaps...

On Mon, Aug 3, 2015 at 9:58 PM, Tavmjong Bah <tavmjong@...206...> wrote:
On Mon, 2015-08-03 at 17:11 -0600, Brynn wrote:
> Hi Friends,
>         For a long time I've been trying to learn how to create new Inkscape
> filters.  I mean starting from scratch, not just building on existing
> filters.  I've been able to do some very simple things, but my efforts
> usually devolve into one at a time, trying every option available.  By sheer
> chance, I sometimes end up with something that might be useful.
>         It would be so very helpful if someone could write a guide, which
> explains the basic concepts.  I think I've finally managed to work out how
> the Filters Editor works.  But I'm missing the basic concepts which would
> help me make decisions about 'what to do next'.
>         I have contacted people who I know have created filters, who know
> how to do it, but without success in finding the info needed.  And I thought
> about adding this to the Community To-Do List page.  It's a lot like the
> need for a guide to writing extensions, I guess.  But for some reason, it
> seems to me like more of a request for a tutorial, and that's not exactly
> what that page is for (I don't think).  Although if it seems to the website
> team like it's appropriate, I can see to adding it there.
>         But otherwise, I thought I'd just make a request to the user
> community.  Can anyone either volunteer to write such a tutorial?  Or
> otherwise point me (and everyone) to some resources for learning    how?
> Thank you very much :-)

Some time ago I started a blog post on how designing a "fabric" filter
effect but never finished it. If you can remind me in a couple of weeks
I can try to get it finished (I'm on vacation at the moment).


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