Geometric Transformations

Vectors & Vector Spaces--2

You may have seen vectors used in a physics class. For example, vector F below represents force applied to brick resting on ground
Break down force into components to see how much is actually pushing the box to the right (Fx) vs. how much is pushing down (Fy).
Vectors are used extensively in computer graphics to
- represent positions of vertices of objects
- determine orientation of a surface in space ("surface normal")
- create impression of light interacting with solid and transparent objects (e.g., vectors from light source to surface)
- and more...

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