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14<h1>QVM: Quaternions, Vectors, Matrices</h1>
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16<!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
17<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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19<div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>perspective_rh</h3>
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21<div class="RenoIncludeDIV"><p><span class="RenoEscape">&#35;<!--<wiki>`&#35;</wiki>--></span>include &lt;<span class="RenoLink"><a href="boost_qvm_mat_operations_hpp.html">boost/qvm/mat_operations.hpp</a></span>&gt;</p>
22<pre>namespace boost
23{
24 namespace <span class="RenoLink"><a href="qvm.html">qvm</a></span>
25 {
26<span class="RenoIncludeSPAN"> template &lt;class T&gt;
27 -unspecified-return-type
28 <span class="RenoLink">perspective_rh</span>( T fov_y, T aspect, T zn, T zf );</span>
29 }
30}</pre>
31</div><h4>Returns:</h4>
32<p>A 4x4 projection matrix of unspecified type of the following form:</p>
33<pre>xs 0 0 0
340 ys 0 0
350 0 zf/(zn-zf) zn*zf/(zn-zf)
360 0 -1 0</pre>
37<p>where ys=cot(fov_y/2), and xs=ys/aspect.</p>
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39See also: <span class="RenoPageList"><a href="boost_qvm_mat_operations_hpp.html">boost/qvm/mat_operations.hpp</a></span>
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