+- Gimp-Forum.net (https://www.gimp-forum.net)
+-- Forum: GIMP (https://www.gimp-forum.net/Forum-GIMP)
+--- Forum: General questions (https://www.gimp-forum.net/Forum-General-questions)
+--- Thread: A few thoughts about brushes (/Thread-A-few-thoughts-about-brushes)
A few thoughts about brushes - Espermaschine - 11-16-2017
Coming from the Felt thread, i want to show you all a few things i observed regarding brushes.
The goal was to make a stitch brush.
The Spoongraphics example was apparently made from an image of a real thread, but i couldnt find a good quality photo of a thread in high definition, so i made a pattern from scratch in Inkscape.
[attachment=956]
The goal was to make it into a custom brush by bevelling the vector-thread-mockup and then convert into a brush.
Wasnt sure about the size, but it appears to me, that much bigger is not better, because it gets blurry when downsized anyway.
Also i was surprised that a greyscale brush always produces partially transparent brushes (left and right in figure 1).
So i ditched the idea of a greyscale brush and used a simple b/w brush instead (middle of figure 1).
When i applied the stitches with the Size/Direction Brush Dynamic, the stitches came out in varying quality depending on the angle.
In comparison i applied the same brush as a 'Pattern Along Path' in Inkscape and the result is of course much much better.
Finally i gave both versions a Bevel.
The outer Stitch was made with Inkscape and bevelled in Gimp, the inner completely in Gimp (figure 2).
[attachment=958]
(click for bigger version)
RE: A few thoughts about brushes - Ofnuts - 11-16-2017
Did you try to apply the stitch as a bumpmap over itself?
RE: A few thoughts about brushes - Espermaschine - 11-16-2017
(11-16-2017, 11:52 AM)Ofnuts Wrote: Did you try to apply the stitch as a bumpmap over itself?
No, i used layerfx.
Why would bumpmapping be better ?
RE: A few thoughts about brushes - Ofnuts - 11-16-2017
Better, I don't know. Possibly different:
[attachment=959]
One brush to paint the stitches, one to bumpmap them. Stroking path is sort of mandatory to make sure that both sets overlap.
RE: A few thoughts about brushes - Espermaschine - 11-16-2017
I like that a lot !
The double action isnt even necessary.
Stroke path with bumpmap brush.
Duplicate layer.
Lock alpha channel and change colour.
Bump map.
Re-use bump-map layer for the shadow later.
Im kind of unsure about what level of detail is really needed.
As you can see, my results looks pretty crusty anyway, which kind of fits the felt crafting theme.
Yours on the other hand, looks a lot better.