title: Set path of Header files to avoid using relative paths (VS2015/c++)
body: <p>H, i'm trying to set my project up so that i can avoid using relative paths for my header files in my project. The reason is that the project is multi-platform and I would like to avoid restructuring each use dependent on which system it's compiled on.</p>
  
  <p>Currently, the header files do not use the correct path way and the only way i can use the includes is if i set relative paths to the files. </p>
  
  <p>E.G.</p>
  
  <p>for my file render.h i want to use:</p>
  
  <pre><code>#include "math/matrix.h" &lt;--- this doesn't work
  </code></pre>
  
  <p>but</p>
  
  <pre><code>#include "../math/matrix.h" &lt;--this works
  </code></pre>
  
  <p>What would i be doing incorrectly here for setting up the project?</p>
  
  <p>in the Properties page, i have set up the following</p>
  
  <p>VC++ Directories -> Include Directories -> C:\Game\math</p>
  
  <p>C++ -> General -> Additional Include Directories -> C:\Game\math</p>
  
  <p>If i right click on the .cpp files and go to properties, i have the C\C++ options but the Headers do not.</p>