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Projection/Rasterization

Object made of triangles

1. Projecting triangle

projection

  • Projection computed as matrix operation (proj. space)

  • \(p'= \mathrm{M} p\)

2. Rasterization

rasterization

  • Discrete geometry

  • Interpolate attributes (colors, etc) on each pixel

⇒ At interactive frame rate (\(\geq\) 25 fps)

  • - Project all triangles of shapes

  • - Fill all pixels of each projected triangle