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9<title>GXGetLightAttnA</title>
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13
14<h1 align="left">GXGetLightAttnA</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">
18#include &lt;revolution/gx.h&gt;
19
20void GXGetLightAttnA(
21    const <A href="../Structures/GXLightObj.html">GXLightObj</A>*   lt_obj,
22    f32*                a0,
23    f32*                a1,
24    f32*                a2 );
25</pre></dd></dl>
26
27<h2>Arguments</h2>
28<TABLE class="arguments" border="1" >
29  <tr>
30<TH>lt_obj</TH>
31<TD>Pointer to a light object.</TD>
32  </tr>
33  <tr>
34<TH>a0</TH>
35<TD>Angular attenuation coefficient 0.</TD>
36  </tr>
37  <tr>
38<TH>a1</TH>
39<TD>Angular attenuation coefficient 1.</TD>
40  </tr>
41  <tr>
42<TH>a2</TH>
43<TD>Angular attenuation coefficient 2.</TD>
44  </tr>
45</TABLE>
46
47<h2>Return Values</h2>
48<p>None.</p>
49
50<H2>Description</H2>
51<P>This function returns coefficients used in the lighting attenuation calculation for a given light object.&nbsp;The application must allocate memory for the light object.&nbsp;The parameters <SPAN class="argument">a0</SPAN>, <SPAN class="argument">a1</SPAN> and <SPAN class="argument">a2</SPAN> are used for angular (spotlight) attenuation. These parameters may be set by the <A href="GXInitLightAttn.html"><CODE>GXInitLightAttn</CODE></A>, <A href="GXInitLightAttnA.html"><CODE>GXInitLightAttnA</CODE></A>, <A href="GXInitLightSpot.html"><CODE>GXInitLightSpot</CODE></A> or <A href="GXInitLightShininess.html"><CODE>GXInitLightShininess</CODE></A> function.</P>
52
53<h2>See Also</h2>
54<p class="reference">
55<a href="GXInitLightAttn.html">GXInitLightAttn</a>,
56<a href="GXInitLightAttnA.html">GXInitLightAttnA</a>
57</p>
58
59<H2>Revision History</H2>
60<P>
612006/03/01 Initial version.<br>
62</P>
63
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