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  <div class="headertitle"><div class="title">MortonCode.h</div></div>
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<a href="_morton_code_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// SPDX-FileCopyrightText: 2021 Jorrit Rouwe</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">// SPDX-License-Identifier: MIT</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#include &lt;<a class="code" href="_a_a_box_8h.html">Jolt/Geometry/AABox.h</a>&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><a class="code hl_define" href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span> </div>
<div class="foldopen" id="foldopen00011" data-start="{" data-end="};">
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"><a class="line" href="class_morton_code.html">   11</a></span><span class="keyword">class </span><a class="code hl_class" href="class_morton_code.html">MortonCode</a></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span>{</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00016" data-start="{" data-end="}">
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"><a class="line" href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">   16</a></span>    <span class="keyword">static</span> <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> <a class="code hl_function" href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">sExpandBits</a>(<span class="keywordtype">float</span> inV)</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span>    {</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span>        <a class="code hl_define" href="_issue_reporting_8h.html#aaf6b1df827e11b7ca5f6f8778bd8f8cd">JPH_ASSERT</a>(inV &gt;= 0.0f &amp;&amp; inV &lt;= 1.0f);</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span>        <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> v = <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a>(inV * 1023.0f + 0.5f);</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span>        <a class="code hl_define" href="_issue_reporting_8h.html#aaf6b1df827e11b7ca5f6f8778bd8f8cd">JPH_ASSERT</a>(v &lt; 1024);</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>        v = (v * 0x00010001u) &amp; 0xFF0000FFu;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>        v = (v * 0x00000101u) &amp; 0x0F00F00Fu;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span>        v = (v * 0x00000011u) &amp; 0xC30C30C3u;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>        v = (v * 0x00000005u) &amp; 0x49249249u;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span>        <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>    }</div>
</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="foldopen" id="foldopen00029" data-start="{" data-end="}">
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"><a class="line" href="class_morton_code.html#ac960ce088e48d87bb6957434cbf56115">   29</a></span>    <span class="keyword">static</span> <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> <a class="code hl_function" href="class_morton_code.html#ac960ce088e48d87bb6957434cbf56115">sGetMortonCode</a>(<a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inVector, <span class="keyword">const</span> <a class="code hl_class" href="class_a_a_box.html">AABox</a> &amp;inVectorBounds)</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>    {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>        <span class="comment">// Convert to 10 bit fixed point</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>        <a class="code hl_class" href="class_vec3.html">Vec3</a> scaled = (inVector - inVectorBounds.<a class="code hl_variable" href="class_a_a_box.html#a4082e61b6401d675d89d6b4944fd7911">mMin</a>) / inVectorBounds.<a class="code hl_function" href="class_a_a_box.html#a376b8319c2ac3e843b1dfac1b8288e94">GetSize</a>();</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>        <a class="code hl_typedef" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> x = <a class="code hl_function" href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">sExpandBits</a>(scaled.<a class="code hl_function" href="class_vec3.html#a284e29f161ae7709a934f402bd2a848c">GetX</a>());</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>        <a class="code hl_typedef" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> y = <a class="code hl_function" href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">sExpandBits</a>(scaled.<a class="code hl_function" href="class_vec3.html#aac08ebd63b9ab4fa089a5ed3224a8679">GetY</a>());</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>        <a class="code hl_typedef" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> z = <a class="code hl_function" href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">sExpandBits</a>(scaled.<a class="code hl_function" href="class_vec3.html#aeca36d050a7c2b41d3ac0438874d8c60">GetZ</a>());</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>        <span class="keywordflow">return</span> (x &lt;&lt; 2) + (y &lt;&lt; 1) + z;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>    }</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>};</div>
</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><a class="code hl_define" href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div>
<div class="ttc" id="a_a_a_box_8h_html"><div class="ttname"><a href="_a_a_box_8h.html">AABox.h</a></div></div>
<div class="ttc" id="a_core_8h_html_a69aa29b598b851b0640aa225a9e5d61d"><div class="ttname"><a href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a></div><div class="ttdeci">unsigned int uint</div><div class="ttdef"><b>Definition</b> Core.h:500</div></div>
<div class="ttc" id="a_core_8h_html_a73da8725998b00321a9db341202d650d"><div class="ttname"><a href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div><div class="ttdeci">#define JPH_NAMESPACE_END</div><div class="ttdef"><b>Definition</b> Core.h:425</div></div>
<div class="ttc" id="a_core_8h_html_a8f95e75e58492e87412191fabadd8ca8"><div class="ttname"><a href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a></div><div class="ttdeci">std::uint32_t uint32</div><div class="ttdef"><b>Definition</b> Core.h:503</div></div>
<div class="ttc" id="a_core_8h_html_ad14098b68b8c44ea6112601031268405"><div class="ttname"><a href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define JPH_NAMESPACE_BEGIN</div><div class="ttdef"><b>Definition</b> Core.h:419</div></div>
<div class="ttc" id="a_issue_reporting_8h_html_aaf6b1df827e11b7ca5f6f8778bd8f8cd"><div class="ttname"><a href="_issue_reporting_8h.html#aaf6b1df827e11b7ca5f6f8778bd8f8cd">JPH_ASSERT</a></div><div class="ttdeci">#define JPH_ASSERT(...)</div><div class="ttdef"><b>Definition</b> IssueReporting.h:33</div></div>
<div class="ttc" id="aclass_a_a_box_html"><div class="ttname"><a href="class_a_a_box.html">AABox</a></div><div class="ttdoc">Axis aligned box.</div><div class="ttdef"><b>Definition</b> AABox.h:16</div></div>
<div class="ttc" id="aclass_a_a_box_html_a376b8319c2ac3e843b1dfac1b8288e94"><div class="ttname"><a href="class_a_a_box.html#a376b8319c2ac3e843b1dfac1b8288e94">AABox::GetSize</a></div><div class="ttdeci">Vec3 GetSize() const</div><div class="ttdoc">Get size of bounding box.</div><div class="ttdef"><b>Definition</b> AABox.h:126</div></div>
<div class="ttc" id="aclass_a_a_box_html_a4082e61b6401d675d89d6b4944fd7911"><div class="ttname"><a href="class_a_a_box.html#a4082e61b6401d675d89d6b4944fd7911">AABox::mMin</a></div><div class="ttdeci">Vec3 mMin</div><div class="ttdoc">Bounding box min and max.</div><div class="ttdef"><b>Definition</b> AABox.h:309</div></div>
<div class="ttc" id="aclass_morton_code_html"><div class="ttname"><a href="class_morton_code.html">MortonCode</a></div><div class="ttdef"><b>Definition</b> MortonCode.h:12</div></div>
<div class="ttc" id="aclass_morton_code_html_a84095b33bd99957d29c492f9e8a2f2c4"><div class="ttname"><a href="class_morton_code.html#a84095b33bd99957d29c492f9e8a2f2c4">MortonCode::sExpandBits</a></div><div class="ttdeci">static uint32 sExpandBits(float inV)</div><div class="ttdef"><b>Definition</b> MortonCode.h:16</div></div>
<div class="ttc" id="aclass_morton_code_html_ac960ce088e48d87bb6957434cbf56115"><div class="ttname"><a href="class_morton_code.html#ac960ce088e48d87bb6957434cbf56115">MortonCode::sGetMortonCode</a></div><div class="ttdeci">static uint32 sGetMortonCode(Vec3Arg inVector, const AABox &amp;inVectorBounds)</div><div class="ttdoc">Calculate the morton code for inVector, given that all vectors lie in inVectorBounds.</div><div class="ttdef"><b>Definition</b> MortonCode.h:29</div></div>
<div class="ttc" id="aclass_vec3_html"><div class="ttname"><a href="class_vec3.html">Vec3</a></div><div class="ttdef"><b>Definition</b> Vec3.h:17</div></div>
<div class="ttc" id="aclass_vec3_html_a284e29f161ae7709a934f402bd2a848c"><div class="ttname"><a href="class_vec3.html#a284e29f161ae7709a934f402bd2a848c">Vec3::GetX</a></div><div class="ttdeci">JPH_INLINE float GetX() const</div><div class="ttdoc">Get individual components.</div><div class="ttdef"><b>Definition</b> Vec3.h:127</div></div>
<div class="ttc" id="aclass_vec3_html_aac08ebd63b9ab4fa089a5ed3224a8679"><div class="ttname"><a href="class_vec3.html#aac08ebd63b9ab4fa089a5ed3224a8679">Vec3::GetY</a></div><div class="ttdeci">JPH_INLINE float GetY() const</div><div class="ttdef"><b>Definition</b> Vec3.h:128</div></div>
<div class="ttc" id="aclass_vec3_html_aeca36d050a7c2b41d3ac0438874d8c60"><div class="ttname"><a href="class_vec3.html#aeca36d050a7c2b41d3ac0438874d8c60">Vec3::GetZ</a></div><div class="ttdeci">JPH_INLINE float GetZ() const</div><div class="ttdef"><b>Definition</b> Vec3.h:129</div></div>
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