
Paint Tool SAI is a lightweight Japanese digital painting program that is popular among artists due to its simplicity and vast range of tools. It offers a variety of functionalities, including the ability to create custom textures, utilize different brush types, and modify tools according to specific needs. While Paint Tool SAI provides a range of tools for drawing and perspective adjustments, it is unclear if it offers a specific perspective pin tool. Users can manipulate perspective rulers and grids to create the desired effect, but the exact process for achieving a perspective pin tool outcome may require further exploration or adaptation of existing tools.
| Characteristics | Values |
|---|---|
| Ease of use | Simple and lightweight, with a vast range of tools |
| Customisation | All tools can be customised to the user's needs |
| Tool speciality | Sketch is good for quick, rough line art, Pen gives smoother lines, and the Color tool is good for blending colours |
| Tool functionality | The Blur tool blends original colours and changes them to a different tint; the Scale and Rotate tools have the same functions as Transform; the Free Distort tool allows the user to make perspective and change proportions of the selected area |
| Perspective rulers | Paint Tool SAI has perspective rulers and perspective grids |
| Perspective ruler controls | Hold CTRL + Shift + Left Click (Drag) to move the rulers while snapping to an axis; hold CTRL + Shift + Alt + Left Click (Drag) the outer control points with the Ellipse rulers to adjust the shape in respect to perspective; hold Alt + Left Click (Drag) to rotate the rulers; hold Alt + Shift + Left Click (Drag) to rotate 45° |
| Perspective grid controls | Move the black crosshairs on the horizon line using CTRL + left mouse button; rotate the crosshairs using Alt + left mouse button; move the light blue dot either above or below the horizon at the front or back corner of an imagined box/room using CTRL + left mouse button |
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What You'll Learn

Paint Tool SAI has perspective rulers and grids
Paint Tool SAI is a lightweight Japanese digital painting program that is very popular among artists due to its simplicity and vast range of tools. The program has two main panels: the Color and Tool Panel on the right and the Layer Panel on the left. It also has a Quick Bar at the top with further controls.
The light blue dot can be moved above or below the horizon at the front or back corner of an imagined box/room. This will determine the first vanishing point: where the green line crosses the horizon line. The closer the blue dot is horizontally, the closer the vanishing point will be and the further away the scene will look. The dark blue dot is then placed in the third corner of the box, creating the second (light blue) vanishing point. The red dots indicate the vertical vanishing point and can be placed above or below the box for a worm's eye view or overhead shot, respectively.
The rulers can also be moved while snapping to an axis by holding CTRL + Shift + Left Click (Drag). This will also adjust the perspective for the Grid ruler. Holding CTRL + Shift + Alt + Left Click (Drag) on the outer control points of the Ellipse rulers will adjust the shape in respect to perspective. Holding Alt + Left Click (Drag) will rotate the rulers, and holding Alt + Shift + Left Click (Drag) will rotate them 45 degrees.
There are four types of rulers, and you can have one of each active at any given time. General Rulers and Symmetry have the highest priority, with the Grid taking second priority.
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The perspective ruler is challenging to manipulate
Paint Tool Sai 2 does have a perspective ruler, but some users have reported that it is challenging to manipulate. The perspective ruler is a tool that allows users to create a sense of depth and perspective in their drawings. While this tool can be powerful, it can also be difficult to use effectively.
One challenge of using the perspective ruler in Paint Tool Sai 2 is that it can be difficult to position the vanishing point directly. This is because the tool does not allow users to select the vanishing point explicitly; instead, they must adjust the intersection points to try to manipulate the vanishing point indirectly. This can often result in a lot of trial and error, as small adjustments to the intersection points can significantly impact the overall perspective of the drawing.
Another challenge is that the perspective ruler is sensitive to the axis on which it is placed. Users must hold CTRL + Left Click (Drag) to adjust the points on the perspective ruler, and the icons at the top control which axis the cursor snaps to. If users are not careful, they may find that their cursor is snapping to the wrong axis, making it difficult to make precise adjustments to the ruler.
Additionally, Paint Tool Sai 2 offers four types of rulers, and each ruler has its own set of controls and behaviours. For example, the Grid ruler can be adjusted by holding CTRL + Shift + Left Click (Drag), while the Ellipse rulers can be adjusted by holding CTRL + Shift + Alt + Left Click (Drag) on the outer control points. Learning how to manipulate each type of ruler effectively can take time and practice.
Overall, while the perspective ruler in Paint Tool Sai 2 can be a powerful tool for creating depth and perspective in drawings, it is challenging to manipulate due to its sensitivity and the indirect method of adjusting the vanishing point. Users must be patient and willing to experiment to master this tool effectively.
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CTRL, Shift, and Alt keys adjust the perspective ruler
Paint Tool SAI has perspective rulers and perspective grids, and the 3-point perspective ruler can be confusing to use.
To adjust the points on the perspective ruler, hold CTRL + Left Click (Drag). The icons at the top control which axis your cursor snaps to. You can also hold CTRL + Shift + Left Click (Drag) to move the rulers while snapping to an axis. This will also adjust the perspective for the Grid ruler.
Holding Alt + Left Click (Drag) will rotate the rulers. Holding Alt + Shift + Left Click (Drag) will rotate them 45 degrees.
To adjust the shape in respect to perspective, hold CTRL + Shift + Alt + Left Click (Drag) the outer control points with the Ellipse rulers.
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The 3-point perspective ruler is confusing and unintuitive
Paint Tool Sai 2 has a 3-point perspective ruler, but some users have found it confusing and unintuitive. One user even noted that they could not locate any tutorials on the subject. The user interface of the tool seems to be the main source of confusion. For example, the inability to position the vanishing point directly is frustrating for some users.
The 3-point perspective ruler in Paint Tool Sai 2 has a steep learning curve, and it can be challenging to figure out how to use it effectively. To use the tool, you must first move the black crosshairs on the horizon line using the Ctrl and left mouse buttons. The vertical position of the crosshairs is crucial, as moving it later will shift the entire ruler rather than adjusting the horizon within it. You can also rotate the crosshairs by holding Alt and the left mouse button to create a slanted horizon line.
After setting up the crosshairs, you need to move the light blue dot either above or below the horizon at the front or back corner of an imagined box or room. This step defines the perspective of your scene, with the position of the blue dot relative to the horizon line determining the distance of the vanishing point. The scene you draw can be larger or smaller than the box you're sketching, so don't worry about size constraints.
Next, you'll determine the first vanishing point by observing where the green line crosses the horizon line. The closer the blue dot is horizontally to the green line, the nearer the vanishing point will be, resulting in a more distant-looking scene. You can then establish the second vanishing point by positioning the dark blue dot in the third corner of the box, which will also define the third corner where the green and blue lines intersect.
The red dots in the 3-point perspective ruler indicate the vertical vanishing point. Placing them above or below the box will give you a worm's eye view or an overhead shot, respectively. Moving the red dots closer to the middle will create a more extreme perspective. Once you've set up all the points, you can start drawing straight lines following the ruler on a normal layer.
While the 3-point perspective ruler in Paint Tool Sai 2 may initially seem confusing, with practice and experimentation, users can become more comfortable with its functionality and create convincing perspectives in their artwork.
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Paint Tool SAI has a simple interface and a wide range of tools
Paint Tool SAI is a lightweight, Japanese digital painting program with a simple interface and a wide range of tools. It is very popular among artists due to its simplicity and vast range of tools. The user interface allows multiple documents to be opened at the same time. The drawing canvas can be both zoomed and rotated using the sliders on the navigator or the hotkeys configured on the keyboard.
Paint Tool SAI has two main panels to work with: the Color and Tool Panel on the right and the Layer Panel on the left. You can change their location in the Window (W). Further controls are available through the Quick Bar at the top. The Step Back feature allows users to go back from the recent action, which can be used more than 10 times. Rotating the canvas can help when drawing from difficult angles.
The program includes a range of raster drawing tools, such as the Airbrush, Watercolor, Pen, and Marker, which can all be customized and stored in slots in the user interface. The Pen tool gives smoother lines, and the Color tool is very useful for blending colours, similar to working with real watercolours. The Blur tool is also used for blending but produces a different result. The Sketch tool is useful for quick, rough line art. The Edge Shape setting makes lines soft or hard, and the Size setting allows the brush size to be adjusted for details or colour blocks.
Paint Tool SAI also includes linework layers, which can be used instead of manually drawing linework. The linework layer includes different tools like Line, Curve, Edit, Pressure, and Weight. SAI also has perspective rulers and grids, which can be adjusted to create different perspectives.
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Frequently asked questions
No, Paint Tool Sai does not have a perspective pin tool. However, it does have a Free Distort tool that allows you to change the perspective and proportions of the selected area.
Paint Tool Sai has perspective rulers and perspective grids. It also has a 3-point perspective ruler, which allows you to adjust the vanishing points of your scene.
To use the perspective rulers in Paint Tool Sai, you can hold CTRL + Left Click (Drag) to adjust the points on the ruler. You can also hold CTRL + Shift + Left Click (Drag) to move the rulers while snapping to an axis.
Yes, Paint Tool Sai also has a Scale and Rotate tool, as well as a Flip Horizontally, Flip Vertically, and Rotate 90° tools. You can also use the Blur tool to blend colors and create different tints.











































