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Pixar in a Box

Course: Pixar in a Box > Unit 6

Lesson 2: Mathematics of depth of field
Computing
Pixar in a Box
Virtual cameras
Mathematics of depth of field
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Light through a pinhole

Google Classroom

Problem

The diagram below shows a ray of light, starting at left parenthesis, 8, comma, 0, right parenthesis and traveling through a pinhole at left parenthesis, 0, comma, 0, right parenthesis. It continues until it hits an image plane 6 units behind the pinhole at a point left parenthesis, x, start subscript, 1, end subscript, comma, y, start subscript, 1, end subscript, right parenthesis.
Where does the ray hit the image plane?
x, start subscript, 1, end subscript, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text

y, start subscript, 1, end subscript, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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