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7<title>SetDirection</title>
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9  <body>
10<h1><CODE><a href="../../../../nn/Overview.html">nn</a>::<a href="../../../../nn/gd/Overview.html">gd</a>::<a href="../../../../nn/gd/CTR/Overview.html">CTR</a>::<a href="../../../../nn/gd/CTR/Light/Overview.html">Light</a>::SetDirection</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14void SetDirection(
15     <a href="../../../../nn_types/f32.html">f32</a> X,
16     <a href="../../../../nn_types/f32.html">f32</a> Y,
17     <a href="../../../../nn_types/f32.html">f32</a> Z
18);
19</pre>
20    </div>
21<h2>Arguments</h2>
22    <div class="section">
23      <table class="arguments">
24        <thead>
25          <tr>
26            <td width="15" />
27<th>Name</th>
28<td>Description</td>
29          </tr>
30        </thead>
31        <tr>
32<td>in</td>
33<th>X</th>
34<td>Sets the x-coordinate of the light source.</td>
35        </tr>
36        <tr>
37<td>in</td>
38<th>Y</th>
39<td>Sets the y-coordinate of the light source.</td>
40        </tr>
41        <tr>
42<td>in</td>
43<th>Z</th>
44<td>Sets the z-coordinate of the light source.</td>
45        </tr> </table>
46    </div>
47<h2>Return Values</h2>
48    <div class="section">
49None.
50               </div>
51<h2>Description</h2>
52    <div class="section">
53<p>This is an immediate function. Sets the light direction. <CODE>SOURCE_TYPE_DIRECTIONAL</CODE> must be specified for the light type to be set using <a href="../../../../nn/gd/CTR/Light/SetLightType.html">SetLightType</a>. This function is an immediate function. (The resulting command from the immediate function is inserted into the command buffer.) <br /> Note: This function sets the same registers as the <a href="../../../../nn/gd/CTR/Light/SetPosition.html">Light::SetDirection</a> function. </p><p>The format of commands that can be put in the command buffer: <br /> 0x00000000 (Y &lt;&lt; 16) | X <br /> 0x00000004 [Reserved] <br /> 0x00000008 Z <br /> 0x0000000c [Reserved] <br /> X, Y, and Z each have 16-bit floating point values. This function converts from a 32-bit floating point format to a 16-bit floating point format.</p><!-- write here --></div>
54<h2>See Also</h2>
55    <div class="section">
56<p class="reference"><a href="../../../../nn/gd/CTR/Utils/Float32ToFloat16.html">Utils::Float32ToFloat16</a><br /><a href="../../../../nn/gd/CTR/Light/SetPosition.html">SetPosition</a><br /> </p>
57    </div>
58<h2>Revision History</h2>
59    <div class="section">
60      <dl class="history">
61        <dt>2011/02/17</dt>
62<dd>Initial version.<br />
63        </dd>
64      </dl>
65    </div>
66  <hr><p>CONFIDENTIAL</p></body>
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