Selected curriculum elements

1
Selected curriculum elements

• Erik Brisson
• ebrisson_at_bu.edu

2
The thread throughout
3
Digital Media in VR

• Practical skill
• Use in course
• Texture map in VR world
• Connections
• Familiar concept (photograph)
• Computer rep (digital image)
• Mathematical object (2D array)

4
What is a digital image?
5
What is a digital image?
6
What is a digital image?
7
What is a digital image?

• P3
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Texture map

?
9
Concepts of Computer Graphics

• Practical skill
• Use in course
• Display the VR world
• Concepts
• Modeling and simulation of physical and geometric
  phenomena
• Data structures representing models
• Lighting, rendering, surfaces, etc

10
Human view of physical world
11
Computer graphics paradigm
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C.G. concept - texture map
13
Animation

• Practical skill
• Use in course
• Object motion in VR world
• Concept
• Discrete approximation of continuous functions

14
History Zoetrope ( 1834)
15
2D Animation into VE
?
16
3D motion as animation - models
17
Building a VR world

• Practical skill
• Use in course
• Layout a VR world
• Connections
• 2D visual rep (landscape plan)
• Mathematical rep (polys in Cart plane)
• Computer rep (description file)
• 3D visual rep (comp graph display)

18
Landscape Plans
Used without permission from http//www.medwaycoo
pbank.com/main/color_landscape_plan.jpg
19
Landscape Plans
Used without permission from http//www.smartdraw
.com/examples/preview/index.aspx?exampleResidenti
al_-_10
20
World as set of simple objects
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Grid on ground plane
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Top-down view
23
Plan drawing on graph paper
24
Specifying horizontal quadrilaterals
Horizontal square (x0,y0) (2,2) (x1,y1)
(4,2) (x2,y2) (4,4) (x3,y3) (2,4) On ground
(height h 0) hquad, x0, y0, x1, y1, x2, y2,
x3, y3, h hquad, 2, 2, 4, 2, 4, 4, 2, 4, 0
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The description file
hquad, 2, 2, 4, 2, 4, 4, 2, 4, 0 vrect, 2, 5,
4, 5, 2 vrect, 4, 5, 4, 7, 2 vrect, 4, 7, 2,
7, 2 vrect, 2, 7, 2, 5, 2 vcyl, 0, 2, 0.5,
3 vcone, 2, -5, 1, 2 vrect, -1.5, -3, 0, -3,
2 vrect, 0, -3, 2, -1, 2 vrect, 2, -1, 0.5, -1,
2 vrect, 0.5, -1, -1.5, -3, 2 hquad, 2, -5, 4,
-3, 2, -1, 0, -3, 2
26
Project workflow
hquad, 2, 2, 4, 2, 4, 4, 2, 4, 0 vrect, 2, 5,
4, 5, 2 vrect, 4, 5, 4, 7, 2 vrect, 4, 7, 2,
7, 2 vrect, 2, 7, 2, 5, 2 vcyl, 0, 2, 0.5,
3 vcone, 2, -5, 1, 2 vrect, -1.5, -3, 0, -3,
2 vrect, 0, -3, 2, -1, 2 vrect, 2, -1, 0.5, -1,
2 vrect, 0.5, -1, -1.5, -3, 2 hquad, 2, -5, 4,
-3, 2, -1, 0, -3, 2