Blooming Stars: Why does Fancy Blur get squared-off?

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AstroStudio
Posts: 20
Joined: Wed Sep 29, 2010 4:35 pm

Blooming Stars: Why does Fancy Blur get squared-off?

Postby AstroStudio » Thu Sep 30, 2010 2:00 am

Greetings,

I am trying to create glowing stars (i.e., with 'bloom') and I am very pleased with the look of Inkscape's Filter>Blur>Fancy Blur effect when applied to bright-color-filled circles 10-20px in diameter on a black background. Trouble is, the blur gets squared off at the objects' boundaries, which are not sufficiently extended like when using the Object>Fill and Stroke>Fill(tab)>Blur(slider). That won't do!

Could anyone here suggest:

1) A strategy for extending object boundaries so that the 'fancy blur' fills out to its full extent?

2) An alternative method to create blooming stars?

Looking forward,
- Erik

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prkos
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Joined: Tue Nov 06, 2007 8:45 am
Location: Croatia

Re: Blooming Stars: Why does Fancy Blur get squared-off?

Postby prkos » Thu Sep 30, 2010 2:11 am

Open the Filter editor (under Filters menu), you'll see the filter there, if it's not selected deselect the circle then select it again, it will update in the editor.

Select the Filter General Settings tab and reduce the coordinates number (more negative) and increase the dimensions, this defines the area that the filter is applied to.

The problem with your object is that it's small, you wouldn't see a cut off if the object was bigger (filters are sensitive to that).
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AstroStudio
Posts: 20
Joined: Wed Sep 29, 2010 4:35 pm

Re: Blooming Stars: Why does Fancy Blur get squared-off?

Postby AstroStudio » Thu Sep 30, 2010 2:37 am

Wow. Solution arrives in 11 minutes. Thank you prkos. Problem solved. InkscapeForum rocks!

ivan louette
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Joined: Thu Aug 21, 2008 4:08 am
Location: Belgium

Re: Blooming Stars: Why does Fancy Blur get squared-off?

Postby ivan louette » Thu Sep 30, 2010 7:13 am

And after you have adjusted the settings you can resize your stars because filters size follows object size.

ivan


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