Polygon Meshes
Any shape can be modeled out of polygons
- if you use enough of them…
Polygons with how many sides?
- Can use triangles, quadrilaterals, pentagons, … n-gons
- Triangles are most common.
- When > 3 sides are used, ambiguity about what to do when polygon nonplanar, or concave, or self-intersecting.
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Polygon meshes are built out of
- vertices (points)
- edges (line segments between vertices)
- faces (polygons bounded by edges)