Hi everyone,...

Does anyone knows How to control the shape, direction and size of the brush in order to follow the direction of the edges of the image?

I tried at work below. But the result are overlapping rectangular shape...

The result I want is as follows ...

Which pattern of shapes brush regularly follow the shape of the image. The size and direction also looks neat, so that the image is clearly visible.

So far I have done is to change the settings in the editor panel, without understanding its purpose. Try, fail ... try again ... until close to the results I think. But it still needs to be fixed.

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This is a very nice image. What brush/es dis you use? I'd like to know more about the procedure? Is this a preset?

Hi Lawrence...thanks for your attention. By the way which picture you mean ? The Koi fish is mine, but the african girl is made by Charis Tsevis

Is it possible to get that brush?

I meant the African girl. I would like to know how to do that. The koi is nice as well but, I would like to do the bigger patches.

Me too. That's why I ask it on this forum...but seem nobody have no the answer :D

Maybe it is a secret :-).

Until everybody find the way..:)

You are kind of asking 2 different things here. You start off by saying you want the brush to 'follow the direction of the edges'. You then say you want to emulate the block patterning in Charis's artwork. They are kind of 2 different things.

When i think of the paint nibs follow the direction of the edges, i think of something like this:

So, i'm using a rectangular brush shape in the Brush Source control panel

and i have the controls in the Brush Modulation control panel setup to follow the Path Orientation

I also have the Spacing in the Path Application control panel set to 240, so that the rectangular paint nibs are spaced far enough apart to not overlap.

You can generate bezier paths based on the source edges in Studio Artist, so you could generate a series of paths that track the edges of the source image, and paint them with individual paint nibs, if you wanted to do that. That's what i think of when you say paint nibs that follow the direction of the edges.

......

If you want the individual paint nibs to directly modulate their orientation based on the source orientation (as opposed to following the directionality of a path), then you could do that by Setting the Orient Modulation to Image Orient in the Brush Modulation control panel. 

Size modulation of a paint nib is again controlled by the associated individual editable parameters at the top of the Brush Modulation control panel.

With normal 'lay down a series of individual paint nib' painting, the shape of the brush is determined by the controls in the Brush Source control panel.

An alternative way to paint is to use 'Region Fill as Brush' Pen Mode. The 2 pen modes of this type are different than the normal 'lay down a series of individual paint nib' approach to painting, in that the specified paint path determines the boundary of an individual paint nib. So these 2 pen modes override the normal Brush Source shape controls. Here's a tip on pen modes if you need more information on the different pen modes and what they do.

So, an alternative way to fill in rectangular paint nibs (alternative to using a rectangular shape in the Brush Source control panel), would be to use a Region Fill as Brush pen mode and have the individual paint paths used for drawing define rectangles.

.....

Charis's artwork example is really a different thing. I think he probably manually defined the rectangles, and then had Studio Artist automatically fill them in with a movie brush using path start regionization, and then masked out the crack areas, filling them with a solid background color. That would be one straightforward approach to creating this particular style.

I'll spend some more time looking into automatic approaches, since this kind of style seems to be of interest to people.

We're almost there John ...

At my work (the fish on top), I actually already implemented the use of image orient and orient path in Brush Modulation . However, to make the shape of a rectangle , I change Size Option becomes H only and adjustment of the size of the min and max range of its. I don't know yet about set the Brush Source to Computational. Besides, with this method we only get the shape, not the brush movie. Or should we use PASeq to have result like Tsevis's work ? I mean we made the initial pattern masking manually , and then run the action to fill a rectangle shape with moviebrush ?

There are some things that still make me curious . If you suggest to use the image orient , if we look at the picture africa girl above, the results are very different . Directions , the size of the brush can be in order so regularly. Even if brushmovie cut , shape remains clearly visible.

Anyway I really appreciate John because it explains some things I did not know before. And I will try also with what I know to get a result like tsevis . Hopefully we can ...


Thanks Jon..

Just modulating the Horz size is an interesting approach. It has some advantages of you want to lay down rows of parallel brush nibs and have them fit.

One thing i was thinking about, is that you could use 1d hatching patterns for a paint path to lay down the paint nib tiles. So you could then for example use 1d hatching with any of the path start regionize options. You would need to setup the Path Application spacing, and the spread in the hatch pattern, so that the paint nibs were spaced appropriately (no overlap). Your H only size modulation would work with this.

The hatching direction is modulated by the source image orientation.

As far as painting directly with the movie brush, or painting with solid color and then filling it in later using a path start regionizer that fills in solid color regions in the canvas or in the selection buffer. If you  paint directly with the movie brush, then the brush images will rotate with the paint nib. If you use path start regionization to fill in a set of solid colored regions after the fact with a movie brush, the brush images will be sized to fit the solid colored regions, but they are not going to rotate.

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