I have the following image created in Gimp.
I’d like to create a similar image in Inkscape. What I want to happen is to have a bright light source and I want this light source to brighten the circles having the most intense effect at the edge of the blue circle.
In Gimp I’m able to achieve this by having a white to black gradient as separate layer on top and setting the blend mode of that layer to
addition
(using the technique in this tutorial: http://gimp-tutorials.net/gimp-glow-effect)How can I achieve a similar effect in Inkscape?
Answer
To reproduce the effect you made in Gimp with Inkscape I took the following steps:
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Create filled circles and make them a group
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Create a large circle with the gradient circular fill (here black for illustration)
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Duplicate the group of colored circles to then create a unified path (Path > Union)
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Select this new path and the gradient circle to cut out the path intersection (Path > Intersection)
At this point I added a canvas and changed the gradient fill from black to white.
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Move the gradient until happy
After grouping the gradient object and the coloured circle group we will finally have a new object resembling your Gimp original:
Side note: for more fancy or realistic effects we may also want to try out some of the inbuilt filters to get many interesting effects (below I applied Filters > Bevels > Deep color plastic)
Attribution
Source : Link , Question Author : User , Answer Author : Takkat