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<div class="title">_noise.hpp</div>  </div>
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<a href="a00003.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &quot;../vec2.hpp&quot;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &quot;../vec3.hpp&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;../vec4.hpp&quot;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &quot;../common.hpp&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="keyword">namespace </span><a class="code" href="a00141.html">glm</a>{</div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="keyword">namespace </span>detail</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;{</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;        GLM_FUNC_QUALIFIER T mod289(T <span class="keyword">const</span> &amp; x)</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;        {</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;                <span class="keywordflow">return</span> x - <a class="code" href="a00146.html#ga568b822b78f045f77c3325e165b44d5d">floor</a>(x * static_cast&lt;T&gt;(1.0) / static_cast&lt;T&gt;(289.0)) * <span class="keyword">static_cast&lt;</span>T<span class="keyword">&gt;</span>(289.0);</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;        }</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;        GLM_FUNC_QUALIFIER T permute(T <span class="keyword">const</span> &amp; x)</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        {</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;                <span class="keywordflow">return</span> mod289(((x * static_cast&lt;T&gt;(34)) + static_cast&lt;T&gt;(1)) * x);</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;        }</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        GLM_FUNC_QUALIFIER tvec2&lt;T, P&gt; permute(tvec2&lt;T, P&gt; <span class="keyword">const</span> &amp; x)</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        {</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;                <span class="keywordflow">return</span> mod289(((x * static_cast&lt;T&gt;(34)) + static_cast&lt;T&gt;(1)) * x);</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        }</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;        </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;        GLM_FUNC_QUALIFIER tvec3&lt;T, P&gt; permute(tvec3&lt;T, P&gt; <span class="keyword">const</span> &amp; x)</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;        {</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                <span class="keywordflow">return</span> mod289(((x * static_cast&lt;T&gt;(34)) + static_cast&lt;T&gt;(1)) * x);</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        }</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        </div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        GLM_FUNC_QUALIFIER tvec4&lt;T, P&gt; permute(tvec4&lt;T, P&gt; <span class="keyword">const</span> &amp; x)</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        {</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;                <span class="keywordflow">return</span> mod289(((x * static_cast&lt;T&gt;(34)) + static_cast&lt;T&gt;(1)) * x);</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        }</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">        template &lt;typename T, precision P, template&lt;typename&gt; class vecType&gt;</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">        GLM_FUNC_QUALIFIER vecType&lt;T, P&gt; permute(vecType&lt;T, P&gt; const &amp; x)</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">                return mod289(((x * T(34)) + T(1)) * x);</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        GLM_FUNC_QUALIFIER T taylorInvSqrt(T <span class="keyword">const</span> &amp; r)</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;                <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        }</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        </div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        GLM_FUNC_QUALIFIER tvec2&lt;T, P&gt; taylorInvSqrt(tvec2&lt;T, P&gt; <span class="keyword">const</span> &amp; r)</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        {</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;                <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        }</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        </div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        GLM_FUNC_QUALIFIER tvec3&lt;T, P&gt; taylorInvSqrt(tvec3&lt;T, P&gt; <span class="keyword">const</span> &amp; r)</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        {</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;                <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        }</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        </div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        GLM_FUNC_QUALIFIER tvec4&lt;T, P&gt; taylorInvSqrt(tvec4&lt;T, P&gt; <span class="keyword">const</span> &amp; r)</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        {</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        }</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">        template &lt;typename T, precision P, template&lt;typename&gt; class vecType&gt;</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">        GLM_FUNC_QUALIFIER vecType&lt;T, P&gt; taylorInvSqrt(vecType&lt;T, P&gt; const &amp; r)</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">                return T(1.79284291400159) - T(0.85373472095314) * r;</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        </div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        GLM_FUNC_QUALIFIER tvec2&lt;T, P&gt; fade(tvec2&lt;T, P&gt; <span class="keyword">const</span> &amp; t)</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        }</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        GLM_FUNC_QUALIFIER tvec3&lt;T, P&gt; fade(tvec3&lt;T, P&gt; <span class="keyword">const</span> &amp; t)</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        {</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        }</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        </div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P&gt;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;        GLM_FUNC_QUALIFIER tvec4&lt;T, P&gt; fade(tvec4&lt;T, P&gt; <span class="keyword">const</span> &amp; t)</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        {</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">        template &lt;typename T, precision P, template &lt;typename&gt; class vecType&gt;</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">        GLM_FUNC_QUALIFIER vecType&lt;T, P&gt; fade(vecType&lt;T, P&gt; const &amp; t)</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">                return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;}<span class="comment">//namespace detail</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;}<span class="comment">//namespace glm</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div>
<div class="ttc" id="a00141_html"><div class="ttname"><a href="a00141.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00003_source.html#l00011">_noise.hpp:11</a></div></div>
<div class="ttc" id="a00146_html_ga568b822b78f045f77c3325e165b44d5d"><div class="ttname"><a href="a00146.html#ga568b822b78f045f77c3325e165b44d5d">glm::floor</a></div><div class="ttdeci">GLM_FUNC_DECL vecType&lt; T, P &gt; floor(vecType&lt; T, P &gt; const &amp;x)</div><div class="ttdoc">Returns a value equal to the nearest integer that is less then or equal to x. </div></div>
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