School:	Applied Computing and Engineering Sciences (ACES)
	Faculty:	Architectural Technology
	Course:	ARCH 12356 - Architectural Studio1

2-point Perspective Drawing - Sketch Techniques

PAGE CONTENTS Objectives Background The Basic Building Block - THE CUBE Perspective Sketching Techniques A. Recognising a Square in Perspective B. Key Principles of Perspective Drawing C. Recognizing a Cube in Perspective D. Drawing 2-Point Perspective Boxes E. Dividing the Squares and Boxes F. Proportion of Squares and Boxes G. Multiplying Squares and Boxes Tasks Submission Requirements Evaluation Criteria

OBJECTIVES

• Resolve problems graphically
• Execute quality line work and lettering.
• Prepare sketches to specified scales.
• Prepare orthographic architectural drawings.
• Create sketch drawings using a variety of techniques

BACKGROUND

Image Source: Adapted from Residential Architecture: Design and Drafting by Ernest R. Weidhaas & Mark D. Weidhaas

2-point perspective drawing can be a very detailed, accurate and technical process - however this application is usually used for the preparation of final presentation drawings. The drawing techniques practised in this course are intended to develop 3-dimensional sketching and problem solving skills, not final presentation drawing skills.

Consequently, this module explores simple, quick visualization techniques to draw 3-dimensional objects, including buildings.

The Basic Building Block - THE CUBE

The key to quickly sketching 3-dimensional objects in perspective is to understand how quickly and accurately to draw a basic cubic form. Once this skill has been mastered, more complex objects can be constructed from a compilation of cubic forms.

Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

PERSPECTIVE SKETCHING TECHNIQUES

A. Recognizing a Square in Perspective

Print out the following sheet (Adobe Acrobat Reader required) and draw the fourth side of the squares so that they show accurate in perspective. Squares1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

B. Key Principles of Perspective Drawing

1. Perspective lines converge at a vanishing point
2. The horizon line is always horizontal
3. The nearest angle is always 90-degrees or greater
4. The sides of a cube are proportional to a square

Some common drawing errors:

Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

C. Recognizing a Cube in Perspective

Print out the following sheet (Adobe Acrobat Reader required) and draw over the cubes so that you fix what is wrong. The cubes have at least one of four things wrong: convergence horizon line nearest angle incorrect proportion Cubes1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

D. Drawing 2-Point Perspective Boxes

Print out the following sheet (Adobe Acrobat Reader required) and draw further cubes as directed. Circle1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

E. Dividing Squares and Boxes

	A square can be divided equally into smaller squares through using the diagonals
	Similarly, a square drawn in perspective can be divided equally into smaller squares through using the diagonals
	Similarly, a cube drawn in perspective can be divided equally into smaller cubes through using the diagonals

Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

Print out the following sheet (Adobe Acrobat Reader required) and divide the cubes and squares as directed. Divide1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

F. Proportion of Squares and Boxes

Print out the following sheet (Adobe Acrobat Reader required) and draw cubes of different proportions. Proportion1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

G. Multiplying Squares and Boxes

	A square can be duplicated through using the diagonals
	Similarly, a square drawn in perspective can be duplicated through using the diagonals
	Similarly, a cube drawn in perspective can be duplicated through using the diagonals

Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

Print out the following sheet (Adobe Acrobat Reader required) and multiply the cubes and squares as directed. Multiply1.pdf Image Source: Adapted from Rapid Viz: A New Method for the Rapid Visualization of Ideas by Hanks & Belliston

TASKS

Complete the six exercises indicated above.

• Recognizing a Square in Perspective
• Recognizing a Cube in Perspective
• Drawing 2-Point Perspective Boxes
• Dividing the Squares and Boxes
• Proportion of Squares and Boxes
• Multiplying Squares and Boxes

SUBMISSION REQUIREMENTS

• This is a freehand drawing course and consequently all line work MUST be created using freehand sketching techniques. Drawings that incorporate ruled lines (i.e. drawn with a ruler or other type of straight edge) will not be evaluated.
• Use appropriate line weight and line type conventions as discussed in class.
• Be sure to include your name and class code (e.g. 51AD2) on your drawings.

The drawings will be collected at the end of the class.

EVALUATION CRITERIA

This exercise is primarily to PRACTISE 2-point perspective sketching. It will be evaluated for completeness only (i.e. Complete or Not Complete).

Top of Page