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Homogeneous Coordinates

Some uses we'll be seeing later

• Construction: putting sub-objects in their parents' coordinate system

  • transforming primitives in their coordinate system

• View volume mapping

  • 2D: Window --> Viewport mapping

  • 3D: normalization: mapping arbitrary view volume into canonical view volume

• Parallel (orthographic and oblique) and perspective projection

• Perspective transformation

Geometric Transformations - 09 MAY 95

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