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Convert figure images to markdown

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James Gregory 2013-12-31 07:56:10 +11:00
commit 77a95ec319
115 changed files with 218 additions and 403 deletions
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51-02.md
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@ -51,8 +51,7 @@ choose to work with and the order in which we evaluate them, so we must
establish some conventions for defining polygons and evaluating the
cross-product.
![](images/51-01.jpg)\
**Figure 51.1**  *The cross-product of two vectors.*
![**Figure 51.1**  *The cross-product of two vectors.*](images/51-01.jpg)
We'll define only convex polygons, with the vertices defined in
clockwise order, as viewed from the outside; that is, if you're looking
@ -78,9 +77,8 @@ viewer, and, despite its name, view space does not provide that
information; unlike screen space, it does not reflect perspective
effects.
![](images/51-02.jpg)\
**Figure 51.2**  *Using the cross product to generate a polygon
normal.*
![**Figure 51.2**  *Using the cross product to generate a polygon
normal.*](images/51-02.jpg)
Backface removal may also be performed using the polygon vertices in
screen coordinates, which are integers. This is less accurate than using