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It’s Still Too Early To Give Up! How To Correct Line Width

Content

●ClipStudioPaint

 

The brush materials of Clip Studio Paint is an essential tool to draw natural objects and effects more quickly.

However, the style of drawing are various.
With existing brush materials, there are many cases that the line is too thick or too thin,
and it might not fit your own style when you use it.

 

「The brush material I bought was wasted … …」

In order to prevent the sad situation like that,
we will introduce various line width correction methods of brush materials.

※The following methods are applicable not only to brush materials
but also to background materials and 3D materials.
 
※The size’s number that using here are millimeter (not pixel).

 

 

 

 

 

 

How to change the overall line width most easily

 

This section introduces the easiest correction method.
If you are not strict to line quality, it is enough to learn this section only.

Most of the brush material contains a white background like below.

This white background is very effective for improving work efficiency.

bandicam 2016-07-12 20-13-34-611

 

 

 

In order to correct line width,
it is necessary to remove this white background,
but at the same time it is better to keep this white background.

 

 

 

It is easy to solve these at the same time.
You can duplicate the layer and edit the duplicated layer.

 

 

 

Once we hide the original layer then edit the duplicated layer.

If you select “convert brightness to opacity” from the Edit tab,
the white background will disappear and only line drawing will be left .

 

 

 

I will further edit line drawings.
Choose “Blur → Gaussian blur” from the Filter tab.

bandicam-2016-11-28-18-02-48-854

 

 

 

The higher the value of area to blur, the thicker the line later become.
Here, set the minimum value of 2.00 and press the OK button.

bandicam-2016-11-29-12-23-59-072

 

 

 

Next, change the Expression color of the blurred line drawing to monochrome from the Layer Property section.

bandicam-2016-11-29-12-44-56-569

 

 

 

Do not worry when the appearance become disappointing.
Adjust the item with alpha threshold from here.

bandicam-2016-11-29-12-56-26-780

 

 

 

Lower the value of Alpha threshold.

bandicam-2016-11-29-13-12-21-830

 

 

The lower it goes, the thicker it becomes.

bandicam-2016-11-29-13-12-54-284

 

 

Increasing the value will narrow the line.

bandicam-2016-11-29-13-13-26-040

 

 

 

By following this process,
you can easily change the linewidth and impression of the brush material.
※Before correction (upper) After correction (lower)

bandicam-2016-11-29-14-59-36-909

bandicam-2016-11-29-14-41-03-665

 

 

 

 

If the original line drawing becomes an obstacle
(Press Ctrl + left click” on the original layer to take the selection area) and fill it with white then OK.
Once the correction is completed, combine the line drawing with the white background then the work is completed.

Print and check it if you are concerned about the finish.

bandicam-2016-11-29-15-23-45-708

 

Summary
・Blur line drawing with Gauss
・Use alpha threshold in monochrome mode

 

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Make the line thicker· Outline

 

In this step,We will correct only the outline of the brush material.
The thickness of the outline changes the impression of drawing.

First of all this is the easiest way.
Check the Border Effect box from the pull down of the layer property window.

bandicam-2016-11-29-15-46-18-847

 

 

 

Change the edge color to black and adjust the thickness of the edges.

 

 

 

Adjusting the thickness of the edges allows you to freely change the width of the outline.

 

 

 

It is a very convenient function that allows you to change the contour line easily
while keeping a white background.

 

 

 

Next, is a method that using “Correct line width” function.
Here as well, we will edit the brush material which containing the white background.

bandicam 2016-07-12 20-13-34-611

 

 

 

From the “Filter” tab select “Correct drawing line” → “Correct line width”.
※ This can only be done with the raster layer

bandicam-2016-11-29-16-58-14-617

 

 

 

Select “Thicken width” with desired value and press OK button to complete.
As you can see, if you modify the line width with an object with white background, only the outline becomes thick, which is very easy.

Partial correction is also possible if you enclose a specific place in the selection area.

 

 

 

If you want to fine adjust the thickness of the outline, use the vector layer.

bandicam 2016-07-12 20-13-34-611

 

 

 

Right-click on the corresponding layer, or select Convert Layer from the Layer tab.

bandicam-2016-11-29-17-29-09-344

 

 

 

Select “Vector layer” from the pull down.
When you convert a drawing with white background into a vector layer, the white background automatically disappears.

To leave a white background, tick the box to Keep original layer and press the OK.

bandicam-2016-11-29-17-30-54-354

 

 

 

When conversion is completed, rearrange the original layer with white background up and the vector layer of the line drawing down.

When converting to a vector layer, the line drawing becomes thick,
so the thickened line stand out from the back of the white background.

 

bandicam-2016-11-29-17-53-38-680

 

 

 

Select the “Correct line width tool”
and you can freely change the line width of the outline for each part to be corrected.

bandicam-2016-11-29-18-08-17-437

 

 

 

It becomes like this material with a simple outline.

bandicam 2016-07-12 20-27-45-907

View of hidden original layer with white background.

bandicam 2016-07-12 20-27-54-489

 

 

 

It is also an effective method when you want to change material
with cute or strong impression.

bandicam 2016-07-12 23-48-48-481

 

Also, you can register brush material that you corrected for your preference,
it will turn into a more user-friendly brush.

※NOTICE※
Secondary distribution of processing material becomes copyright violation.

 

Summary
Vector layers’ order is 「white」 above, 「thick line drawing」 below.

 

 

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Make the Line Thicker・Whole

 

In this step, we will tell you how to widen the line width of the whole line.

The easiest way is to convert it to a vector layer.
First, prepare the original material.

bandicam 2016-07-12 20-13-34-611

 

 

 

“Right-click” on the layer, or select “Layer” from tab → “Convert Layer”.

bandicam-2016-11-29-17-29-09-3441

bandicam-2016-11-29-17-30-54-354

When you convert a drawing with white background into a vector layer,
the white background automatically disappears.

To leave a white background, tick the box to keep the original layer and press the OK button.

 

 

 

Converting to vector layer will automatically make the line drawing thick, so the work is complete.

 

 

 

However, there are two problems with this method.
One is that the
convert line drawing into a vector layer is very inorganic and mechanical.

bandicam 2016-07-12 22-59-38-697

 

 

 

The other is that the conversion precision will change depending on the size.
The figure below shows the page of size B4 zoomed out.

Brush stamp that inside of the blue frame work now is maximum size (100/mm),
the brush stamp inside red frame is a smaller size.

bandicam 2016-07-12 22-59-38-701

 

 

 

Let’s convert smaller size of material to vector layer.

 

 

 

It became a miserable form that does not keep the original form.
Even if you try hard on this, it will not be usable.

bandicam-2016-11-30-11-33-11-542

 

 

 

So I will introduce another method.
Duplicate the layer of the original brush stamp.

bandicam-2016-11-30-11-54-22-126

 

 

 

From the “Edit” tab, choose “Convert brightness to opacity”.
The white background disappeared, and only the line drawing is showing.

bandicam-2016-11-30-11-59-03-484

 

 

 

Press “Ctrl + E” or from “Layer” tab select Merge with layer below.

bandicam-2016-11-30-12-43-48-148

 

 

 

The upper part is “original layer” .
Below is a state where “original layer” and “line drawing” are merged.

You can see that the line is slightly thicker.

bandicam 2016-07-12 23-02-41-196

 

 

 

Next time I will try duplicating a lot of line drawings.
Unlike vector conversion,
the overall line width became thicker.

But there is a trap here, so be careful.

bandicam-2016-11-30-13-05-46-214

 

 

 

Merging the duplicated layers will make the lines thinner.
Even if it is thick on the screen, it will not be reflected in the printed result.
The Merged lines become lines of the correct thickness.

bandicam 2016-07-12 23-05-00-192

 

 

 

And the line width change is up to 4 to 5 copies.
No changes can be seen no matter how many times it is duplicated.

Below is a comparison of “Original Image”, “One Merged Duplication”, “Five Merged Duplicate” comparisons.

 

bandicam 2016-07-12 23-02-41-196

bandicam 2016-07-12 23-05-00-192

It is gentle but you can see that the line is thick.

 

 

 

And I will try the same method for the small size as before.
bandicam 2016-07-12 23-42-58-158

 

 

 

Unlike the previous vector conversion,
the line became thick with natural impression.
bandicam 2016-07-12 23-43-01-161

 

Depending on the brush, some lines may become considerably thinner as the size is reduced.
This correction method is a small skill that can be used at such time.

Summary
・Faster by vector conversion
Small size line drawing → Duplicate and Merged

 

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Make the Line Thicker · Partial Correction

 

I want to correct line width partial instead of the outline or whole thing

In such a case the most quickest way is still the vector layer.
First, prepare the original material (Brush stamp).

bandicam-2016-11-30-15-17-41-918

 

 

 

“Right-click” the layer, or from the “Layer” tab
select “Convert layer” → Vector Layer.

bandicam-2016-11-29-17-29-09-3441

 

 

 

When convert a drawing with white background into a vector layer,
the white background will disappear automatically.

To leave a white background,
tick the box to Keep the original layer and press the OK button.

bandicam-2016-11-29-17-30-54-354

 

 

 

Select the “Correct line width” tool and select the part to be corrected
You can freely change the line width of the partial line.

bandicam 2016-07-13 16-16-00-076

 

 

 

However, when converting a small size object into a vector,
there is a weak point that accuracy drops
remarkably.

bandicam-2016-11-30-11-33-11-542

 

 

 

So we will practice a method by not using the vector layer.
Prepare the original layer and thick lines corrected drawings.

Please refer to
How to change the overall line width most easily

・Make the line thicker / outline
・Make the line thicker / whole

bandicam-2016-11-30-16-56-45-251

 

 

 

With the two pieces perfectly overlapped, the line drawing is placed on the original layer.

※Thick line drawing on the top.
Original drawing and white background on the bottom.

bandicam-2016-11-30-17-03-25-283

 

 

 

Using a tone scrapping brush or airbrush, scrape the Thick line drawing with transparent color.
The thin line drawing on the bottom appeared and partial correction is done.
Using a “layer mask” (red frame) is useful for correction and redoing.

 

bandicam-2016-11-30-17-21-48-650

 

 

 

↓ Line drawing after thickened whole image
bandicam 2016-07-13 16-30-10-235

 

 

Line drawings after partial correction (focused on tip of grass correction)
bandicam 2016-07-13 16-30-14-073

 

 

Original line drawing
bandicam 2016-07-13 16-30-14-075

 

This method can also apply on existing background material and 3D rendering.
Please check with the print check of the finish.

 

※Summary
・ Faster by vector conversion
・ Duplicate two line drawings layer with different thickness, and cut thick line.

 

 

Back to Content

 

 

 

 

 

 

 

Make the Line Thinner ・ Whole

 

In this section we will show you how to thin the line of the whole material.

First prepare the original layer (Brush stamp).

bandicam-2016-11-30-18-01-16-464

 

 

 

From the “Filter” tab select “Correct drawing line” → “Correct line width”.
※ This can only be done with the raster layer

bandicam-2016-11-29-16-27-52-296

 

 

 

Then choose “Thin width” and adjust the numerical value.
The higher the value, the thinner the line width.
You can check the change by checking the preview box.
Let’s set it to your preference and press OK.

Partial correction is also possible if you enclose a specific place in the selection area.

 

 

 

The upper is the corrected (value 0.3), the lower is the original image before correction.
The impression has changed considerably.
This method is very handy because it can be done while leaving a white background,
The line width is corrected only for the outline.

bandicam 2016-07-13 14-10-39-751

 

 

 

Next is to thin the overall line width.
Duplicate the original layer by right-click on the layer.

bandicam-2016-11-30-18-01-16-464

bandicam-2016-12-01-11-20-26-312

 

 

 

Choose “Convert brightness to opacity, from the “Edit” tab “.
The white background disappeared, and only the line drawing left.

Please hide the original layer at this time by click “Eye mark”.

The white background of the brush materials increase work efficiency in all aspects.
We recommend editing after duplication, to leave a white background.

bandicam-2016-12-01-11-43-38-226

 

 

 

Hide the original layer that contained the white background then edit duplicated layer.
In the same way as before, select “
Correct drawing lineCorrect line width” from the “Filter” tab,
then uncheck the box to leave a line of 1 pixel line.

※ This work can only be done with the raster layer

The line become thiner compared to original,
and it became the shadow.
Partial correction is also possible if you enclose a specific place in the selection range.

 

 

An example of checking box that Leave a line 1 pixel.
It becames a very delicate impression.

 

 

 

In this way the line drawing of the original layer becomes an obstacle.
Hold down “Ctrl” and click on the original layer to take the selection area.

 

 

 

Complete a solid white background by filling with white.

 

 

 

Now, the line correction is completed while leaving the white background.

bandicam-2016-12-01-13-08-07-735

 

 

Summary
・Using filter function
・Fill the original line drawing with white

 

Back to Content

 

 

 

 

 

 

 

Make the line Thinner・Partial Correction

 

In this section we will tell you how to correct partial line.

The most quickest is still the vector layer.
First, prepare the original material.

bandicam-2016-11-30-18-01-16-464

 

 

 

“Right-click” the layer, or from the “Layer” tab
select “Convert layer” → Vector Layer.

bandicam-2016-11-29-17-29-09-3441

 

 

 

When convert a drawing with white background into a vector layer,
the white background will disappear automatically.

To leave a white background,
tick the box to keep the original layer and press the OK.

bandicam-2016-11-29-17-30-54-354

 

 

 

Since the line drawing of the original layer is an obstacle, erase it unless necessary.
Hold down “Ctrl and click” on the original layer to take the selection area.

bandicam-2016-12-01-14-42-38-040

 

 

 

Filled with white, it is completion of solid white background.

bandicam-2016-12-01-14-46-22-394

 

 

 

Select the “Correct line width” tool and select the part to be corrected
You can freely change the line width of the partial line.

bandicam-2016-12-01-15-05-41-922

bandicam-2016-12-01-15-03-17-138

 

 

 

However, when converting a small size object into a vector layer,
there is a weak point that accuracy drops remarkably.

bandicam-2016-11-30-11-33-11-542

 

 

So we will try a method by not using the vector layer.
Prepare the original layer and thick lines corrected drawings.

Please refer to
How to change the overall line width most easily

・Mke the line thinner / whole

With the two pieces perfectly overlapped, the line drawing is placed on the original layer.
※Thick line drawing on the top.
 Thin line drawing and white background on the bottom.

bandicam-2016-12-01-16-22-54-376

 

 

 

Hold down Ctrl and click on the original layer to take the selection area.
Next, press the button (inside the blue frame) of Show border of selected area.

bandicam-2016-12-01-16-29-42-926

 

 

 

This will hide the border of the selected area, make editing of the line drawing easier.

Assuming redoing, we will create a new correction layer and work on it.
Using the scraping brush or airbrush, scrape the original line drawing with white.
The thick line drawing disappeared, and partial correction is done.

bandicam-2016-12-01-16-49-18-611

 

 

 

The top is corrected, bottom is the original image before correction.
The impression has changed.

bandicam 2016-07-13 23-59-04-784

bandicam 2016-07-13 16-58-50-677

 

 

 

This method can also apply on existing background material and 3D rendering.
Please check with the print check of the finish.

 

※Summary
・Quicker by vector layer conversion
Duplicate line drawings with different thicknesses, and correct

Fill the original line drawing with white

 

 

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