Hi Yale,

You simply forgot to add a Composite "In" connected to the Source image at the end of the filter like in the joined file.

ivan

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De : Yale Zhang <yzhang1985@...400...>
À : inkscape-devel@...1784...sourceforge.net
Envoyé le : Samedi 9 mars 2013 19h43
Objet : [Inkscape-devel] filters with background image as source not rendering correctly and lack of support in browsers

Hi, I created a filter that applies a displacement map to the background image to simulate effects like water caustics or the warping you see around fires, but it doesn't render how I want it to.

The filter is being applied to the entire bounding box of the path instead of just inside the path. I tried it in Opera, which does support using the background image as a filter source and it shows the same effect. Is this correct behavior?

I've attached an example of my problem. It's a star over a checkboard, but you should only see the checkerboard distorted inside the star.

Also, could someone comment on why so few browsers (I only know Opera) support the background image as a filter source? To me, it doesn't seem any more complicated than just a regular transparency.

Thanks,

Yale

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