<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.9.5"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Final Year Project: D:/Users/mbuzelis/source/repos/ForwardPlusRenderer/src/Camera.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="custom_dark_theme.css" rel="stylesheet" type="text/css"/>
<link href="custom.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Final Year Project
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part --><!-- Generated by Doxygen 1.9.5 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
$(document).ready(function(){initNavTree('_camera_8cpp_source.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>
<div class="header">
<div class="headertitle"><div class="title">Camera.cpp</div></div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include <stdafx.h></span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include "Camera.h"</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include "Context.h"</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="keyword">namespace </span>fpr</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>Camera::Camera(glm::vec3 position, glm::quat rotation, <span class="keywordtype">float</span> FOV, <span class="keywordtype">float</span> near, <span class="keywordtype">float</span> far):</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> m_position(position), m_rotation(rotation), m_FOV(FOV), m_near(near), m_far(far)</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span>{</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">auto</span>& extent = fpr::Context::Get().GetSwapChain()->GetCurrentExtent();</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> <span class="keywordtype">float</span> aspect_ratio = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>((float)extent.width / (<span class="keywordtype">float</span>)extent.height);</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> m_projection_matrix = glm::perspective(glm::radians(FOV), aspect_ratio, near, far);</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> m_projection_matrix[1][1] *= -1.f; <span class="comment">//INVERTED: Vulkan has inverted Y. </span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> <span class="comment">//One solution is to invert viewport. Instead, I invert the projection matrix as this requires less overhead.</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> m_view_matrix = glm::transpose(glm::toMat4(rotation)) * glm::translate(glm::mat4(1.0f), -position);</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> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keywordtype">void</span> Camera::Update()</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span>{</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> m_view_matrix = glm::transpose(glm::toMat4(m_rotation)) * glm::translate(glm::mat4(1.0f), -m_position);</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span>}</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keywordtype">void</span> Camera::SetPosition(glm::vec3 new_pos)</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span>{</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> m_position = new_pos;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>}</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keywordtype">void</span> Camera::SetRotation(<span class="keywordtype">float</span> amount, glm::vec3 axis_rot)</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span>{</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> m_rotation = glm::angleAxis(amount, axis_rot);</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> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keywordtype">void</span> Camera::MoveX(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>{</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> m_position += m_rotation * fpr::Context::RIGHT_VECTOR * value * m_movement_speed;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>}</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="keywordtype">void</span> Camera::MoveY(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>{</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> m_position += m_rotation * fpr::Context::UP_VECTOR * value * m_movement_speed;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span>}</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keywordtype">void</span> Camera::MoveZ(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>{</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> m_position += m_rotation * fpr::Context::FORWARD_VECTOR * value * m_movement_speed;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>}</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keywordtype">void</span> Camera::RotateX(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>{</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> value *= m_rotation_speed;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> glm::quat new_rotation{};</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> new_rotation.x = sin(value / 2.0f);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> new_rotation.y = 0.0f;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> new_rotation.z = 0.0f;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> new_rotation.w = std::cos(value / 2.0f);</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> m_rotation *= new_rotation;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>}</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keywordtype">void</span> Camera::RotateY(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>{</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> value *= m_rotation_speed;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> glm::quat new_rotation{};</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> new_rotation.x = 0;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> new_rotation.y = sin(value / 2.0f);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> new_rotation.z = 0;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> new_rotation.w = std::cos(value / 2.0f);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> m_rotation = new_rotation * m_rotation;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span>}</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="keywordtype">void</span> Camera::RotateZ(<span class="keywordtype">float</span> value)</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> value *= m_rotation_speed;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> glm::quat new_rotation{};</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> new_rotation.x = 0.0f;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> new_rotation.y = 0.0f;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> new_rotation.z = sin(value / 2.0f);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> new_rotation.w = std::cos(value / 2.0f);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> m_rotation *= new_rotation;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>}</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="keyword">const</span> glm::mat4 Camera::GetViewMatrix()<span class="keyword"> const</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">return</span> m_view_matrix;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span>}</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="keyword">const</span> glm::mat4 Camera::GetProjectionMatrix()<span class="keyword"> const</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">return</span> m_projection_matrix;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>}</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="keyword">const</span> glm::vec3 Camera::GetPosition()<span class="keyword"> const</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> m_position;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>}</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span>} <span class="comment">// namespace fpr</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><b>Camera.cpp</b></li>
<li class="footer">
Generated on Mon Oct 3 2022 13:44:05 for Final Year Project by <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"
onerror="this.onerror=null;this.src='doxygen.svg';"/></a> 1.9.5.
Dark theme by <a href="http://majerle.eu" target="_new">Tilen Majerle</a>. All rights reserved.
</li>
</ul>
</div>
<script src="custom.js"></script>
</body>
</html>
Mantas Buzelis