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Perspective 11: Formally Measuring Degrees of Slopes with Erik Olson

Perspective 11: Formally Measuring Degrees of Slopes
Learn Perspective for Artists Erik will guide you through measuring and using slopes in a picture

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  • Lesson Details
Erik Olson
Art Theory
Colored Pencil, Pencil
5h 53m 32s
Perspective for Artists

Artist and veteran instructor Erik Olson demonstrates how to create and determine degrees of inclines and declines for slopes as well as measuring, referencing, and positioning objects on slopes. You will also learn how to create 45 degree auxiliary vanishing points as one of the three common ways to find and construct standing grids, squares, and cubes.


  • 45-45-90 Transparent Triangle Ruler
  • 30-60-90 Transparent Triangle Ruler
  • Alvin Pro-Matic Lead Holder – 2H Lead
  • Alvin Rotary Lead Pointer
  • T-Square Ruler
  • Protractor
  • Prismacolor Verithin Colored Pencil – Red/Blue
  • Paintbrush
  • Kneaded Eraser
  • Hard Eraser
  • Helix Technical Compass
Beginner Friendly

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