Fill it in a bucket in a stroke

I will explain the digital unique features and bucket tool.

With the bucket tool, you can paint a color in a blank area around the line.

Bucket tool
Caption. Bucket tool

“Bucket Tool” is located in the toolbar on the left side of the main window ((1) tool).

First of all, please download and open the sample for this tutorial.

Next, click “Bucket Tool (1)” button and switch to “Bucket Tool”.
“Toolbar” for “bucket tool” is displayed at the top of the main window.

Toolbar for bucket
Caption. Toolbar for bucket

Let’s explain each function of the toolbar.

About Reference

It is the object to reference when deciding the area to be painted with a bucket. You can select either “Layer” or “Canvas”.

If you set the reference to “Layer”, fill the area surrounded by lines against the active layer. If you set the reference to “Canvas”, fill the part surrounded by the line against the canvas.

let’s try it

Please select the “not drawn” layer of the sample, set the reference to “Canvas” and click inside the red circle. The inside of the red circle is painted with the foreground color of the brush.

Next, please undo once and cancel the fill.

Next time, select the “not drawn” layer, set the reference to “Layer” and click in the red circle. The entire canvas is painted.

In this way, you can adjust the area to be filled with a bucket by switching the “Reference”.

About Tolerance value

If you set the “Tolerance” value, you can apply color in a bucket at a time even in slightly different colors.

let’s try it

Let’s paint the inside of the yellow-green circle by selecting the “not drawn” layer of the sample, making the reference “Canvas” and changing the tolerance.
(Every time you fill, please undo, erase the yellow green circle with a layer clear or eraser and fill it in new.)

Difference in painting by tolerance
Caption. Difference in painting by tolerance

When the allowable value is 1, the filling of the bucket stops when the color changes even a little, so if you paint a line with blur like an airbrush, a large white area will remain around the line However, if you set the allowable value appropriately, you can paint cleanly with lines like airbrush.

About anti-aliasing

When checked, anti-aliasing of filled border becomes effective.

let’s try it

Switch anti-aliasing checks and fill in the “inner circle” of the sample “black double circle” to check the difference. Let’s enlarge the canvas display when it is difficult to understand the difference as it is.

AntiAliasing difference
Caption. AntiAliasing difference

About extension

If line drawing is anti-aliased, there may be a gap between line drawing and bucket painting. You can use “Expansion” to fill that gap.

let’s try it

Let’s change the value of the extension and fill in the “outer circle” of the sample “black double circle” to see the difference.

Difference according to extension value
Caption. Difference according to extension value

About Close Gap

If you use the “Close Gap” function, you can paint even a slightly interrupted line drawing without sticking out. If you check “Close Gap” you will be able to choose level in 5 steps. “Close Gap” will be invalid if unchecked.

let’s try it

Let’s paint in the blue circle of the sample with a bucket while changing the level of the gap closure.

When the level is 1 or 2, it will protrude out of the circle, but if you increase the level above 3, you will be able to fill in only the circle.

Difference due to the strength of the gap closure
Caption. Difference due to the strength of the gap closure