ceph/src/boost/libs/qvm/doc/perspective_lh.html

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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 -->
  18 <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
  19 <div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>perspective_lh</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_lh</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
  34 0              ys             0                 0
  35 0              0         zf/(zf-zn)   -zn*zf/(zf-zn)
  36 0              0              1                 0</pre>
  37 <p>where ys=cot(fov_y/2) and xs=ys/aspect.</p>
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  39 See also: <span class="RenoPageList"><a href="boost_qvm_mat_operations_hpp.html">boost/qvm/mat_operations.hpp</a></span>
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  41 <!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
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  48 <small>Copyright (c) 2008-2016 by Emil Dotchevski and Reverge Studios, Inc.<br/>
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