Annoying Gradient Lines

Post questions on how to use or achieve an effect in Inkscape.
Davey777
Posts: 16
Joined: Sun Aug 16, 2009 10:28 pm

Annoying Gradient Lines

Postby Davey777 » Sat Jan 02, 2010 8:26 pm

I can't figure out why i am getting lines showing on the gradient radiating out from behind the heart where the colour is lighter. It should be smooth (has been before on other work) but viewed at 100% the curved lines are really visible.

Can't see what the problem is or how can i get rid of them! grrrrrrrr

http://i157.photobucket.com/albums/t42/ ... s1copy.jpg

Davey777
Posts: 16
Joined: Sun Aug 16, 2009 10:28 pm

Re: Annoying Gradient Lines

Postby Davey777 » Mon Jan 04, 2010 5:12 am

Here is a close up to show what i am on about:

http://i157.photobucket.com/albums/t42/ ... ge3887.jpg

User avatar
sas
Posts: 404
Joined: Sat Oct 06, 2007 5:42 am

Re: Annoying Gradient Lines

Postby sas » Mon Jan 04, 2010 5:50 am

This is a known problem (bug 180693). In general, there are two different causes: lack of dithering (somewhat surprisingly it really is necessary to dither 24-bit colour for some gradients), and the fact that Inkscape divides each gradient into only 1024 colours for the purpose of rendering.

Looking at your close-up, the second cause appears to be the main problem. I would try rendering the SVG file with Batik to see if it does any better.

Davey777
Posts: 16
Joined: Sun Aug 16, 2009 10:28 pm

Re: Annoying Gradient Lines

Postby Davey777 » Wed Jan 06, 2010 12:10 am

Thanks.. appreciate the response and suggestions.

hmm i am thinking i picked the wrong software to use for a professional finish tho.

These gradient issues seem to infest all but the most pro (expensive) software out there.. ?!

All very disheartening (forgive the pun based on the image above) but i am thinking of going back to photography and waiting until Inkscape fixes this problem. When ever that will be....

ivan louette
Posts: 215
Joined: Thu Aug 21, 2008 4:08 am
Location: Belgium

Re: Annoying Gradient Lines

Postby ivan louette » Wed Jan 06, 2010 4:04 am

Davey777 wrote:Thanks.. appreciate the response and suggestions.

hmm i am thinking i picked the wrong software to use for a professional finish tho.

These gradient issues seem to infest all but the most pro (expensive) software out there.. ?!

All very disheartening (forgive the pun based on the image above) but i am thinking of going back to photography and waiting until Inkscape fixes this problem. When ever that will be....


Davey777,

It's not a matter of being "pro" or not. Don't forget Inkscape is a work in progress and that's why it's 0.47 and not 1.something :) Rendering is on the way and will be greatly improved probably towards 0.49.

ivan

Davey777
Posts: 16
Joined: Sun Aug 16, 2009 10:28 pm

Re: Annoying Gradient Lines

Postby Davey777 » Sat Jan 09, 2010 10:46 pm

I do like inkscape.. i found it easy to use and not overly complicated. Just a bit frustrated at the mo. I'll watch for further developments tho :)


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