In this part, I am going to introduce the various [Ruler] tools which can be used for backgrounds and such.
Rulers can be selected via the [Ruler] icon in the [Tool] palette.
There are various kinds of rulers.
Their functions will help you draw beautiful lines on the digital canvas.
For example, let's select the [Linear ruler] and a purple line will be displayed like this.
The ruler icon is displayed on the [Layer] in the [Layer] palette where the ruler is placed.
When the ruler icon is on and the ruler is activated, lines will be drawn along the ruler.
You can move and transform rulers by using the [Object] tool, to move them to different places on the canvas.
There are a number of different ruler tools.
Curve and figure rulers are some of them, but I would like to show you a particular set of rulers.
They are called the "Special rulers".
Before placing any special ruler on the canvas, select the kind in the [Tool Property] palette.
If you select [Parallel lines] for the ruler and drag it on the canvas, you can easily create parallel lines.
Unlike the previous ruler, the special ruler influences the lines drawn anywhere on the canvas.
With a parallel line ruler, you can only draw lines parallel to the direction of the ruler.
There are other rulers such as the [Parallel curve] ruler, which allows you to draw lines parallel to a curve.
Then there is the [Concentric circle] ruler to draw those types of lines.
These rulers can be moved later by using the [Object] tool.
So after you drew two circles, deactivate "Snap to special rulers" in the [Command bar].
Now you can use the [Pen] tool and hold [Shift] to draw straight lines and connect the borders - like for a cup or a glass.
There are also rulers that let you easily draw action lines, which are often used in manga.
You can do this with the "Focus line" ruler.
If you place the "Focus line" ruler on the canvas, you can only draw lines that gather at the center of the ruler,
no matter where you draw on the canvas.
Let's draw some effect lines for a manga using this.
This ruler can also be used for 1-point perspective.
There is also a special ruler specifically for vanishing points, however.
I will next introduce the [Perspective ruler].
There are two ways to create a [Perspective ruler].
The first one is to select [Create Perspective Ruler] from the [Layer] menu → [Ruler - frame].
Selected the number of vanishing points and created the ruler, clicking OK.
The second way is to create a "Persepctive ruler" by aligning the ruler along a pre-existing drawing or photo in this way.
Select [Ruler] tool → [Perspective ruler] and create it.
In line with the underlying drawing, I draw a line in the direction of the perspective.
This will create one vanishing point.
Use the [Object] tool to select the ruler.
The blue dots are the vanishing points and the green dot on the blue line is the eye level of this perspective projection.
As with all the "Special rulers", if you try to draw a line on the canvas with the "Perspective ruler" active,
you can only draw along that perspective.
You can only draw lines towards the blue vanishing points, as well as horizontal and vertical lines.
With CLIP STUDIO PAINT you can create multiple vanishing points with one perspective ruler.
In this drawing, another vanishing point is necessary in the direction opposite to the one vanishing point.
I will show you how to create the other vanishing point.
Just as before, select the [Ruler] tool → [Perspective Ruler].
Drag a line in another direction of the perspective, and another one corresponding to that.
With this the second vanishing point is created for the perspective.
With the second "Perspective ruler" created you can easily draw backgrounds with a two-point perspective.
If you want to turn off the "Perspective ruler", deactivate "Snap to Special Ruler" in the Command Bar at the top right.
Or deactivate the ruler in the [Layer] palette.
Alternatively, select the [Object] tool and click the ruler.
You can deactivate it by clicking the square which will change the ruler's line color to green.
Rulers are generally effective only on the layer they are created on.
However, you can click on the ruler in the [Layer] palette and change the editing targets to even use them on different layers.
A [Perspective ruler] can be changed to have 3 vanishing points by adding the third vanishing point.
With the [Perspective ruler] created, select the [Object] tool and click the [Perspective ruler] again.
In the [Tool property] palette, you can display a grid by using the [Grid] button.
When displaying the grid, the grid along the perspective created in this way is displayed.
You can change the size of the grid in the [Tools property] palette.
You can draw additional items and characters etc. along the perspective using this.
You can also use the grid.
With the grid displayed, you can snap the lines to the grid by activating "Snap to Grid".
The [Ruler] tool also affects tools other than the pen and pencil tools.
For example, select the [Marquee] tool → [Rectangle].
If you use the [Rectangle Selection] tool while keeping the perspective ruler active,
the selection will be made along the perspective automatically.
Since [Watercolor], [Oil paint], [Decoration brushes] and [Figures] are also affected by rulers they can be used in various ways.
If you want to move a ruler to another layer, simply drag the ruler icon in the [Layer] palette and move it to another layer.
Next, I want to show you the [Symmetry ruler].
The [Symmetry ruler] is created by drawing a line like this.
Once created, drawn lines on one side are also reflected on the opposite side of the ruler line.
You can use this to draw rough sketches of a person facing forward or other simple symmetrical shapes.
When creating a "Symmetry ruler" , you can select the number of lines used in the [Tool property] palette.
For example, if you create a ruler with 10 lines,
a line you draw in one place is reflected across the remaining nine lines as well.
This is great to make simple patterns, lace or magic circles.