PTE · Describe Image

Techniques of Spatial Depth in Art: PTE Describe Image practice questions

4 original Describe Image questions. Question 1 is free to record, play back and compare with a sample answer right here; log in free to practise the rest in the BandLadder app.
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  • PTE Academic and PTE Core
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1

Use of Two Point Perspective

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Look at the image below. You have 25 seconds to study it, then 40 seconds to describe in detail what it shows.

Prevalence of Angular Perspective in Urban Scene Studies (Percentage of surveyed works). Architectural Studies: 1500s 12, 1600s 28, 1700s 45, 1800s 62, 1900s 38.

Prevalence of Angular Perspective in Urban Scene Studies (Percentage of surveyed works)
0204060801001500s1600s1700s1800s1900s
View the data
1500s1600s1700s1800s1900s
Architectural Studies1228456238

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Questions 2–4

Look at the image below. You have 25 seconds to study it, then 40 seconds to describe in detail what it shows.

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2

Tonal Values Across Spatial Depth

Measured Contrast Ratio Across Perceived Ground Planes (Contrast index out of 100). Classical Style: Plane 1 90, Plane 2 72, Plane 3 54, Plane 4 38, Plane 5 22, Plane 6 10. Tenebrist Style: Plane 1 95, Plane 2 88, Plane 3 60, Plane 4 40, Plane 5 18, Plane 6 5.

Measured Contrast Ratio Across Perceived Ground Planes (Contrast index out of 100)
020406080100Plane 1Plane 2Plane 3Plane 4Plane 5Plane 6
  • Classical Style
  • Tenebrist Style
View the data
Plane 1Plane 2Plane 3Plane 4Plane 5Plane 6
Classical Style907254382210
Tenebrist Style95886040185
3

Constructing Curvilinear Perspective Grids

Method for Plotting Curvilinear Perspective. Stage 1: Establish horizontal and vertical central axes. Stage 2: Plot equidistant reference points along outer circle. Stage 3: Draw concentric elliptical guidelines through axes. Stage 4: Align architectural contours to curved intersections. Stage 5: Apply gradated shading along distorted arcs.

Method for Plotting Curvilinear Perspective
  1. 1.Establish horizontal and vertical central axes
  2. 2.Plot equidistant reference points along outer circle
  3. 3.Draw concentric elliptical guidelines through axes
  4. 4.Align architectural contours to curved intersections
  5. 5.Apply gradated shading along distorted arcs
4

Gallery Layout for Optical Experiments

Optics and Painting Exhibition Floor Plan, north at the top. Camera Obscura Bay in the north-west, Convex Mirror Display in the north, Viewing Apparatus Booth in the north-east, Linear Grid Workshop in the south-west, Trompe L'Oeil Hall in the south-east.

Optics and Painting Exhibition Floor Plan
Camera Obscura BayConvex MirrorDisplayViewingApparatusBoothLinear Grid WorkshopTrompe L'Oeil HallN

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