# One-point Perspective Drawing [version B]

## Introduction & Pretest

### Pretest Question 1

#### ### What does HL and VP stand for in perspective drawing?

• Horizon Line; Visual Point
• Horizon Line; Vanishing Point
• Half Line; Visual Point
• Half Line; Vanishing Point

### Pretest Question 3

#### ### Which of the following statement(s) is(are) true in one-perspective drawing?

• One-point perspective means that there is only one vanishing point (VP) in the drawing.
• All lines that are parallel in three-dimensional world meet at the vanishing point (VP).
• The HL is subjective in that its position changes when the artist’s position change. If the painter crouch down, that horizon line gets lower. If you were to climb a ladder, that horizon line moves up in the scene.
• The objects look equal in size in a perspective drawing regardless of their distance from the painter.

• a
• b
• c
• d
• e
• f
• g
• h

### Pretest Question 5

#### ### When drawing a prism in one-point perspective, what is the step after connecting the corners of the front shape to the vanishing point?

• Placing an Vanishing Point on the Horizon Line.
• Draw a horizon line.
• Clean up the perspective lines and other lines used in intermediate steps.
• Lightly draw the back of the prism.

## Drawing parallel lines in one-point perspective

• a
• b
• c
• d

### Quiz on Vanishing Point (1/2)

#### ### The drawing of the box shown below looks good but in fact, it's flawed. ### [1] What is the main problem it has?

• There are different types of lines in the drawing.
• All lines are parallel, which means there is no VP.
• The horizon line is not shown in the drawing.

### Quiz on Vanishing Point (2/2)

#### ### The drawing of the box shown below looks good but in fact, it's flawed. [2] How should you make it correct?

• Make the dotted lines into solid lines.
• Make lines that are located farther from the viewer shorter.
• Make lines that are located farther from the viewer longer.
• Make the Horizon Line visible in the drawing

### Exercise 1: Drawing the interior of a room

#### How you did with your drawing? Look for the following checkpoints in your drawing:

• Checkpoint 1: Extend lines you draw and they should meet at the VP.
• Checkpoint 2: The lines you draw starts at the corners of the back wall (rectangle).

### Quiz: Parallel lines and True shapes

#### Shapes that ____ appears as their true shapes in one-point perspective. Lines that ____ converge at the vanishing point.

• fall on the plane of the canvas; fall on the plane of the canvas
• fall on the plane of the canvas; travel away from the viewer
• travel away from the viewer; fall on the plane of the canvas
• travel away from the viewer; travel away from the viewer

### Quiz on Vanishing Point (2/2)

#### ### The drawing of the box shown below looks good but in fact, it's flawed. [2] How should you make it correct?

• Make the dotted lines into solid lines.
• Make lines that are located farther from the viewer shorter.
• Make lines that are located farther from the viewer longer.
• Make the Horizon Line visible in the drawing

## Drawing boxes in one-point perspective

### Exercise 2: Drawing a box above the HL

#### (This picture is to help you check whether you get critical points correct, not how your drawing should look like.)

• Checkpoint 1: My drawing looks the same as the answer.
• Checkpoint 2: The blue edges converge at the VP
• Checkpoint 3: The dark red edge should be parallel to the red edge. The dark green edge should be parallel to the light green edge.
• Checkpoint 4: No perspective line is shown.

### Exercise 3: Drawing a parcel box below the HL

#### (This picture is to help you check whether you get critical points correct, not how your drawing should look like.)

• Checkpoint 1: The orange edges converge at the VP.
• Checkpoint 2: Edges in green are vertical.
• Checkpoint 3: Edges in blue are horizontal.
• Checkpoint 4: No perspective line is shown in the drawing.

## Drawing prisms in one-point perspective

### General steps of creating prisms in one-point perspective

#### Now, you have learned how to draw boxes and triangular prisms. Have you noticed that the steps for drawing them are similar?In fact, the steps of drawing boxes and triangular prisms are generalizable to any prisms. Could you summarize the general steps of drawing prisms in one-perspective drawing? Try to put the following steps in order by dragging them. (Assume that you start with a blank canvas)

• Draw a horizon line.
• Place a vanishing point on the horizon line.
• Draw the closest side of the prism.
• Connect all the corners to the vanishing point.
• End the form (lightly draw the rear edges parallel to the front edges -> imagine solid surfaces -> darken the rear edges that are visible to the viewer).
• Darken the receding edges that are visible to the viewer.
• Clean up the perspective lines.

### Exercise 4: Drawing a hexagonal prism

#### Did you get the following points correct?

• Checkpoint 1: My drawing looks the same as the answer.
• Checkpoint 2: The orange edges converge at the VP.
• Checkpoint 3: The dark blue edge is parallel to the light blue edge; the dark red edge is parallel to the red edge; the dark green edge is parallel to the light green edge.
• Checkpoint 4: No perspective line is shown.

### Exercise 5: Drawing a irregular prism (an L-shape prism)

#### (This picture is to help you check whether you get critical points correct, not how your drawing should look like.)

• Checkpoint 1: My drawing look the same as the answer.
• Checkpoint 2: The orange edges converge at the VP.
• Checkpoint 3: the dark green edge is parallel to the light green edge; the dark blue edge is parallel to the light blue edge
• Checkpoint 4: Draw a vertical line from point A and a horizontal line from point B. Denote the intersection of the two lines as C. C is on the perspective line. (This is to check if you end the form in a right way.)
• Checkpoint 5: No perspective line is shown in the drawing.

## Measuring within one point perspective

### Exercise 6: Drawing windows for the house

#### (This picture is to help you check whether you get critical points correct, not how your drawing should look like.)

• Checkpoint 1: My drawing looks like the answer.
• Checkpoint 2: The orange edges converge at the VP.
• Checkpoint 3: The side edge (dark blue edge) of the window should be parallel to the house (light blue edge).
• Checkpoint 4: The windows and doors on the two sides are of the same height (see yellow lines).
• Checkpoint 5: the orange edge is a little bit shorter than the red edge.
• Checkpoint 6: No perspective line is shown on the picture.

## Final assessment

#### ### Which of the following statement(s) is(are) true in one-perspective drawing?

• One-point perspective means that there is only one vanishing point (VP) in the drawing.
• All lines that are parallel in three-dimensional world meet at the vanishing point (VP).
• The HL is subjective in that its position changes when the artist’s position change. If the painter crouch down, that horizon line gets lower. If you were to climb a ladder, that horizon line moves up in the scene.
• The objects look equal in size in a perspective drawing regardless of their distance from the painter.

• a
• b
• c
• d
• e
• f
• g
• h

### Question 3

#### ### When drawing a prism in one-point perspective, what is the step after connecting the corners of the front shape to the vanishing point?

• Placing an Vanishing Point on the Horizon Line.
• Draw a horizon line.
• Clean up the perspective lines and other lines used in intermediate steps.
• Lightly draw the back of the prism.

#### ### Checkpoints

• Checkpoint 1: The HL is higher than the doors (purple).
• Checkpoint 2: The VP is on the line of edges that recede back from the viewer (edges in orange).
• Checkpoint 3: The edges in green are parallel to each other.
• Checkpoint 4: The window and the door on the front side are on the middle line (see yellow lines).
• Checkpoint 5: The window and the door on the right side are on the middle line (see pink lines).
• Checkpoint 6: The windows and doors on the two sides are of the same height (see blue lines).
• Checkpoint 7: The windows and doors on the two sides are approximately of the same width (the red edge should be a little bit shorter than the dark red edge).
• Checkpoint 8: No perspective line is shown in the drawing.