Drawing & spatial awareness · Higher

Sketching & illustration

5 cards · 3 quiz · 0 exam
What you're learning in this topic

Learning intention WALT

We are learning about sketching & illustration, specifically to:

understand

  • illustration techniques: light, shade, shadow, reflection, tone and texture

be able to

  • sketch in proportion with good line quality, using crating
  • sketch pictorial and orthographic views from given drawings, with hidden detail

Success criteria WILF

  • I can sketch in proportion with good line quality, using crating
  • I can sketch pictorial and orthographic views from given drawings, with hidden detail
  • I can describe illustration techniques: light, shade, shadow, reflection, tone and texture

Sketching skills

  • Proportion: sizes look right relative to each other. Compare widths and heights before you start.
  • Line quality: light construction lines first, then firmer, darker outlines. Construction lines must look different from outlines.
  • Crating: sketch a box the overall size, then cut away or add to it.
  • Vanishing points: for perspective, keep depth lines heading to the VPs.
  • From orthographic views: be able to sketch a pictorial from given elevations and plans, and orthographic views from a pictorial, in third angle with hidden detail.

Assignment sketching rules

  • No drawing boards, set squares or drawing equipment: using them gives 0 marks for the whole sketching task. A straight edge is allowed.
  • Digital sketching: straight edge tool only. No shape or circle tools, and no software that turns a 3D model into a 2D sketch.
  • Don't model the object in CAD and copy it: the task assesses your ability to interpret the object.
  • Show the elevation in the direction the data sheet indicates.

Illustration techniques

  • Light source: decide where the light comes from; faces towards it are lightest.
  • Tone: graded light to dark shading that shows form.
  • Shade and shadow: the dark side of the object, and the shadow it casts on the ground.
  • Reflection: streaks and highlights on shiny surfaces such as glass, metal and gloss plastic.
  • Texture and material: wood grain, brushed metal, fabric.
  • Gradient: a smooth change of colour or tone.

Key terms

CratingSketch a box the overall size first, then build the object inside it.
Construction linesLight lines used to set out a sketch; must look different from outlines.
ToneGraded shading from light to dark that shows form.
ReflectionHighlights or streaks that show a shiny surface.
Drawing board in the sketching taskNot allowed: 0 marks for the task.

Quick check

1. What is crating?

  1. Packing a finished product into a box for delivery
  2. A type of hatching used on sectional views
  3. Sketching a box first and building the object inside it
  4. Adding colour and tone to an outline sketch
Show answer
C: Sketching a box first and building the object inside it. A sketching technique.

2. In the assignment sketching task you may use…

  1. A drawing board
  2. Set squares
  3. CAD-generated views to trace
  4. A straight edge
Show answer
D: A straight edge. Only a straight edge.

3. Which shows a shiny metal surface?

  1. Reflections and highlights
  2. Wood grain and knots
  3. Section hatching lines
  4. Contour lines and shading
Show answer
A: Reflections and highlights. Reflections.

Printable worksheet

An I do, we do, you do worksheet for this topic, with a separate answer sheet.

Worksheet (PDF)Answers (PDF)