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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
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62-03.md
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@ -111,8 +111,7 @@ wall's t values accordingly. The test for x clipping is very simple,
because the edges of the frustum are defined as the planes where x==z
and -x==z.
![](images/62-02.jpg)\
**Figure 62.2**  *Clipping to the view pyramid.*
![**Figure 62.2**  *Clipping to the view pyramid.*](images/62-02.jpg)
The final clip stage is clipping by y coordinate, and this is the most
complicated, because vertical walls can be clipped at an angle in y, as
@ -134,5 +133,4 @@ results to the width of the screen, then we'll be ready to draw.
Although this step is logically separate from clipping, it is performed
as the last step for visible walls in **ClipWalls()**.
![](images/62-03.jpg)\
**Figure 62.3**  *Why y clipping is more complex than x or z clipping.*
![**Figure 62.3**  *Why y clipping is more complex than x or z clipping.*](images/62-03.jpg)