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POtemplate <typename T> perculating all through the code
 

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    <p>I <a href="https://stackoverflow.com/questions/7210944/can-t-in-template-typename-t-use-inheritance/7210968">templatized a class earlier</a> and as a result of this templatization, <em>all classes that received objects of this newly templated type require templating as well</em>, even where the templatization is completely irrelevant.</p> <p>So:</p> <ul> <li><code>class Shape</code> is the base class for <code>class Sphere</code>, <code>Cube</code>, <code>Model</code></li> <li>Each <code>Shape</code> contains a <code>Mesh</code></li> <li><code>Mesh</code> has now been templatized to allow for basically the VertexBuffer to have a parameterized type:</li> </ul> <p>So:</p> <pre><code>template &lt;typename T&gt; struct Mesh { VertexBuffer&lt;T&gt; verts ; // Mesh needs to be templated to allow // the vertex buffer to be templated as well } ; </code></pre> <p>So now the class that contains the <code>Mesh</code> (base class <code>Shape</code>) needs to be templated as well:</p> <pre><code>template &lt;typename T&gt; class Shape { Mesh&lt;T&gt;* mesh ; } ; </code></pre> <p><strong>And now</strong>, <em>all</em> the methods anywhere in the code need to be templated <em>as well</em>, even where that templatization in no way affects the code (ie that code has no business with the vertex type of the Mesh member)</p> <p>So for example, the octree node:</p> <pre><code>// An octree node template &lt;typename T&gt; struct ONode // but this class doesn't really benefit // from templatization { AABB bounds ; ONode* parent ; // facilitate movement thru the tree ONode* children[8]; // cells, octants, cubelets Shape&lt;T&gt;* objects ; // for the purposes of the Octree, // But ALL SHAPES BEHAVE THE SAME. &lt;T&gt; serves no purpose </code></pre> <p>This is a really nasty artifact and I'm not sure how to stop the perculation of templatization <em>at an earlier point</em>, or if templatization was a correct choice now that I see how much needs to be templatized.</p>
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    1. CODoes VertexBuffer need to be a template? Perhaps VertexBuffer could be a non-template class having a few template member functions. It would be helpful if you showed what VertexBuffer looks like.
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      1. USEmile Cormier
 

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