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<title>0.9.7: _noise.hpp Source File</title>
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<div id="projectname">0.9.7
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<li class="navelem"><a class="el" href="dir_275089585c7fc1b5fd5d7d42c69cb1da.html">D:</a></li><li class="navelem"><a class="el" href="dir_7b98f88bffbed4b390b5f8f520d9c08e.html">Source</a></li><li class="navelem"><a class="el" href="dir_1f76e953200861345293ade84ac7fb6c.html">G-Truc</a></li><li class="navelem"><a class="el" href="dir_e29b03b892e0e25920d021a614d4db9b.html">glm</a></li><li class="navelem"><a class="el" href="dir_5ce58d942b2d0776e17a9a58abc01e04.html">glm</a></li><li class="navelem"><a class="el" href="dir_e529a619cfdec1fa4c331fb042fd332f.html">detail</a></li> </ul>
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<div class="header">
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<div class="headertitle">
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<div class="title">_noise.hpp</div> </div>
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</div><!--header-->
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<div class="contents">
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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> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#pragma once</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="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "../vec2.hpp"</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "../vec3.hpp"</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "../vec4.hpp"</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "../common.hpp"</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span><a class="code" href="a00146.html">glm</a>{</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  GLM_FUNC_QUALIFIER T mod289(T <span class="keyword">const</span> & x)</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> x - <a class="code" href="a00151.html#ga568b822b78f045f77c3325e165b44d5d">floor</a>(x * static_cast<T>(1.0) / static_cast<T>(289.0)) * <span class="keyword">static_cast<</span>T<span class="keyword">></span>(289.0);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  GLM_FUNC_QUALIFIER T permute(T <span class="keyword">const</span> & x)</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  GLM_FUNC_QUALIFIER tvec2<T, P> permute(tvec2<T, P> <span class="keyword">const</span> & x)</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  GLM_FUNC_QUALIFIER tvec3<T, P> permute(tvec3<T, P> <span class="keyword">const</span> & x)</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  GLM_FUNC_QUALIFIER tvec4<T, P> permute(tvec4<T, P> <span class="keyword">const</span> & x)</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> mod289(((x * static_cast<T>(34)) + static_cast<T>(1)) * x);</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> template <typename T, precision P, template<typename> class vecType></span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> GLM_FUNC_QUALIFIER vecType<T, P> permute(vecType<T, P> const & x)</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> {</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> return mod289(((x * T(34)) + T(1)) * x);</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> }</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  GLM_FUNC_QUALIFIER T taylorInvSqrt(T <span class="keyword">const</span> & r)</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  {</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  GLM_FUNC_QUALIFIER tvec2<T, P> taylorInvSqrt(tvec2<T, P> <span class="keyword">const</span> & r)</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  GLM_FUNC_QUALIFIER tvec3<T, P> taylorInvSqrt(tvec3<T, P> <span class="keyword">const</span> & r)</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  GLM_FUNC_QUALIFIER tvec4<T, P> taylorInvSqrt(tvec4<T, P> <span class="keyword">const</span> & r)</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">return</span> T(1.79284291400159) - T(0.85373472095314) * r;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> template <typename T, precision P, template<typename> class vecType></span></div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> GLM_FUNC_QUALIFIER vecType<T, P> taylorInvSqrt(vecType<T, P> const & r)</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> {</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> return T(1.79284291400159) - T(0.85373472095314) * r;</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> }</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  GLM_FUNC_QUALIFIER tvec2<T, P> fade(tvec2<T, P> <span class="keyword">const</span> & t)</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  </div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  GLM_FUNC_QUALIFIER tvec3<T, P> fade(tvec3<T, P> <span class="keyword">const</span> & t)</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  {</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T, precision P></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  GLM_FUNC_QUALIFIER tvec4<T, P> fade(tvec4<T, P> <span class="keyword">const</span> & t)</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> template <typename T, precision P, template <typename> class vecType></span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> GLM_FUNC_QUALIFIER vecType<T, P> fade(vecType<T, P> const & t)</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> {</span></div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> return (t * t * t) * (t * (t * T(6) - T(15)) + T(10));</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> }</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }<span class="comment">//namespace detail</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> }<span class="comment">//namespace glm</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="ttc" id="a00151_html_ga568b822b78f045f77c3325e165b44d5d"><div class="ttname"><a href="a00151.html#ga568b822b78f045f77c3325e165b44d5d">glm::floor</a></div><div class="ttdeci">GLM_FUNC_DECL vecType< T, P > floor(vecType< T, P > const &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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<div class="ttc" id="a00146_html"><div class="ttname"><a href="a00146.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00003_source.html#l00040">_noise.hpp:40</a></div></div>
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