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9<title>GXGetLightDirv</title>
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13
14<h1 align="left">GXGetLightDirv</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">
18#include &lt;revolution/gx.h&gt;
19
20#define GXGetLightDirv(lo, vec) \
21 (GXGetLightDir((lo), (f32*)(vec), (f32*)(vec)+1, (f32*)(vec)+2))
22</pre></dd></dl>
23
24<h2>Arguments</h2>
25<TABLE class="arguments" border="1" >
26  <tr>
27<TH>lo</TH>
28<TD>Pointer to a light object.</TD>
29  </tr>
30  <tr>
31<TH>vec</TH>
32<TD>Returns direction vector. You may use an <CODE>f32</CODE>-type array or structure.</TD>
33  </tr>
34</TABLE>
35
36<h2>Return Values</h2>
37<p>None.</p>
38
39<H2>Description</H2>
40<P>This macro returns the direction of the light from a light object into a vector structure.&nbsp;Use the <A href="GXInitLightDir.html"><CODE>GXInitLightDir</CODE></A>, <A href="GXInitLightDirv.html"><CODE>GXInitLightDirv</CODE></A>, <A href="GXInitSpecularDir.html"><CODE>GXInitSpecularDir</CODE></A> or <A href="GXInitSpecularDirv.html"><CODE>GXInitSpecularDirv</CODE></A> function to set the light direction.</P>
41
42<h2>See Also</h2>
43<p class="reference">
44<a href="GXInitLightDir.html">GXInitLightDir</a>,
45<a href="GXInitLightDirv.html">GXInitLightDirv</a>,
46<a href="GXInitSpecularDir.html">GXInitSpecularDir</a>,
47<a href="GXInitSpecularDirv.html">GXInitSpecularDirv</a>
48</p>
49
50<H2>Revision History</H2>
51<P>
522006/03/01 Initial version.<br>
53</P>
54
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