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<li class="navelem"><a class="el" href="dir_934f46a345653ef2b3014a1b37a162c1.html">G:</a></li><li class="navelem"><a class="el" href="dir_98f7f9d41f9d3029bd68cf237526a774.html">Source</a></li><li class="navelem"><a class="el" href="dir_9344afb825aed5e2f5be1d2015dde43c.html">G-Truc</a></li><li class="navelem"><a class="el" href="dir_45973f864e07b2505003ae343b7c8af7.html">glm</a></li><li class="navelem"><a class="el" href="dir_304be5dfae1339a7705426c0b536faf2.html">glm</a></li><li class="navelem"><a class="el" href="dir_e8f3c1046ba4b357711397765359cd18.html">gtx</a></li> </ul>
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<div class="title">fast_square_root.hpp</div> </div>
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<div class="contents">
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<a href="a00030.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// Dependency:</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "../common.hpp"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "../exponential.hpp"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "../geometric.hpp"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifndef GLM_ENABLE_EXPERIMENTAL</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"># error "GLM: GLM_GTX_fast_square_root is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"># pragma message("GLM: GLM_GTX_fast_square_root extension included")</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span><a class="code" href="a00135.html">glm</a></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genType> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  GLM_FUNC_DECL genType <a class="code" href="a00184.html#gae83f0c03614f73eae5478c5b6274ee6d">fastSqrt</a>(genType x);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">template</span><length_t L, <span class="keyword">typename</span> T, qualifier Q></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  GLM_FUNC_DECL vec<L, T, Q> <a class="code" href="a00184.html#gae83f0c03614f73eae5478c5b6274ee6d">fastSqrt</a>(vec<L, T, Q> <span class="keyword">const</span>& x);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genType> </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  GLM_FUNC_DECL genType <a class="code" href="a00184.html#gadcd7be12b1e5ee182141359d4c45dd24">fastInverseSqrt</a>(genType x);</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">template</span><length_t L, <span class="keyword">typename</span> T, qualifier Q></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  GLM_FUNC_DECL vec<L, T, Q> <a class="code" href="a00184.html#gadcd7be12b1e5ee182141359d4c45dd24">fastInverseSqrt</a>(vec<L, T, Q> <span class="keyword">const</span>& x);</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genType></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  GLM_FUNC_DECL genType <a class="code" href="a00184.html#ga90f66be92ef61e705c005e7b3209edb8">fastLength</a>(genType x);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">template</span><length_t L, <span class="keyword">typename</span> T, qualifier Q></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  GLM_FUNC_DECL T <a class="code" href="a00184.html#ga90f66be92ef61e705c005e7b3209edb8">fastLength</a>(vec<L, T, Q> <span class="keyword">const</span>& x);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genType></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  GLM_FUNC_DECL genType <a class="code" href="a00184.html#ga42d3e771fa7cb3c60d828e315829df19">fastDistance</a>(genType x, genType y);</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">template</span><length_t L, <span class="keyword">typename</span> T, qualifier Q></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  GLM_FUNC_DECL T <a class="code" href="a00184.html#ga42d3e771fa7cb3c60d828e315829df19">fastDistance</a>(vec<L, T, Q> <span class="keyword">const</span>& x, vec<L, T, Q> <span class="keyword">const</span>& y);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">template</span><<span class="keyword">typename</span> genType> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  GLM_FUNC_DECL genType <a class="code" href="a00184.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">fastNormalize</a>(genType <span class="keyword">const</span>& x);</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }<span class="comment">// namespace glm</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#include "fast_square_root.inl"</span></div>
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<div class="ttc" id="a00184_html_ga90f66be92ef61e705c005e7b3209edb8"><div class="ttname"><a href="a00184.html#ga90f66be92ef61e705c005e7b3209edb8">glm::fastLength</a></div><div class="ttdeci">GLM_FUNC_DECL T fastLength(vec< L, T, Q > const &x)</div><div class="ttdoc">Faster than the common length function but less accurate. </div></div>
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<div class="ttc" id="a00135_html"><div class="ttname"><a href="a00135.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00015_source.html#l00020">common.hpp:20</a></div></div>
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<div class="ttc" id="a00184_html_gae83f0c03614f73eae5478c5b6274ee6d"><div class="ttname"><a href="a00184.html#gae83f0c03614f73eae5478c5b6274ee6d">glm::fastSqrt</a></div><div class="ttdeci">GLM_FUNC_DECL vec< L, T, Q > fastSqrt(vec< L, T, Q > const &x)</div><div class="ttdoc">Faster than the common sqrt function but less accurate. </div></div>
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<div class="ttc" id="a00184_html_ga3b02c1d6e0c754144e2f1e110bf9f16c"><div class="ttname"><a href="a00184.html#ga3b02c1d6e0c754144e2f1e110bf9f16c">glm::fastNormalize</a></div><div class="ttdeci">GLM_FUNC_DECL genType fastNormalize(genType const &x)</div><div class="ttdoc">Faster than the common normalize function but less accurate. </div></div>
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<div class="ttc" id="a00184_html_gadcd7be12b1e5ee182141359d4c45dd24"><div class="ttname"><a href="a00184.html#gadcd7be12b1e5ee182141359d4c45dd24">glm::fastInverseSqrt</a></div><div class="ttdeci">GLM_FUNC_DECL vec< L, T, Q > fastInverseSqrt(vec< L, T, Q > const &x)</div><div class="ttdoc">Faster than the common inversesqrt function but less accurate. </div></div>
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<div class="ttc" id="a00184_html_ga42d3e771fa7cb3c60d828e315829df19"><div class="ttname"><a href="a00184.html#ga42d3e771fa7cb3c60d828e315829df19">glm::fastDistance</a></div><div class="ttdeci">GLM_FUNC_DECL T fastDistance(vec< L, T, Q > const &x, vec< L, T, Q > const &y)</div><div class="ttdoc">Faster than the common distance function but less accurate. </div></div>
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