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diff --git a/Doc/doxygen/html/_projector_8cpp_source.html b/Doc/doxygen/html/_projector_8cpp_source.html new file mode 100644 index 0000000..2af13e3 --- /dev/null +++ b/Doc/doxygen/html/_projector_8cpp_source.html @@ -0,0 +1,587 @@ +<!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"/> +<title>Starshatter_Open: D:/SRC/StarshatterSVN/nGenEx/Projector.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="navtree.js"></script> +<script type="text/javascript"> + $(document).ready(initResizable); +</script> +<link href="search/search.css" rel="stylesheet" type="text/css"/> +<script type="text/javascript" src="search/search.js"></script> +<script type="text/javascript"> + $(document).ready(function() { searchBox.OnSelectItem(0); }); +</script> +<link href="doxygen.css" rel="stylesheet" type="text/css" /> +</head> +<body> +<div id="top"><!-- do not remove this div, it is closed by doxygen! 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All Rights Reserved.</span></div> +<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div> +<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> SUBSYSTEM: nGenEx.lib</span></div> +<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> FILE: Projector.cpp</span></div> +<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> AUTHOR: John DiCamillo</span></div> +<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div> +<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span></div> +<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> OVERVIEW</span></div> +<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> ========</span></div> +<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> 3D Projection Camera class</span></div> +<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">*/</span></div> +<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> +<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="_mem_debug_8h.html">MemDebug.h</a>"</span></div> +<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="_projector_8h.html">Projector.h</a>"</span></div> +<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> +<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> +<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">float</span> CLIP_PLANE_EPSILON = 0.0001f;</div> +<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> Z_NEAR = 1.0;</div> +<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> +<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">void</span> <a class="code" href="_list_8inl.html#a76779b0ba1af4da2cfb8cf309b39372b">Print</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* fmt, ...);</div> +<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> +<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> +<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">static</span> <a class="code" href="class_camera.html">Camera</a> emergency_cam;</div> +<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> +<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div> +<div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="class_projector.html#a3dea9ea39ca8ce8aa34d0ef387b3fbd4"> 31</a></span> <a class="code" href="class_projector.html#a3dea9ea39ca8ce8aa34d0ef387b3fbd4">Projector::Projector</a>(<a class="code" href="class_window.html">Window</a>* window, <a class="code" href="class_camera.html">Camera</a>* cam)</div> +<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> : camera(cam), infinite(0), depth_scale(1.0f), orthogonal(false), field_of_view(2)</div> +<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> {</div> +<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">if</span> (!<a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>)</div> +<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a> = &emergency_cam;</div> +<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> +<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="class_projector.html#a67b6267f212570f860a20d0851acb2a8">UseWindow</a>(window);</div> +<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div> +<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> +<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="class_projector.html#a24513cbefdcc21dc3dec3ff76f7483b4"> 40</a></span> <a class="code" href="class_projector.html#a24513cbefdcc21dc3dec3ff76f7483b4">Projector::~Projector</a>()</div> +<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> { }</div> +<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div> +<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> +<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00046"></a><span class="lineno"><a class="code" href="class_projector.html#a26208b90e7d335aaedd874eadb0c03c4"> 46</a></span> <a class="code" href="class_projector.html#a26208b90e7d335aaedd874eadb0c03c4">Projector::UseCamera</a>(<a class="code" href="class_camera.html">Camera</a>* cam)</div> +<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div> +<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (cam)</div> +<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a> = cam;</div> +<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a> = &emergency_cam;</div> +<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div> +<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> +<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="class_projector.html#a67b6267f212570f860a20d0851acb2a8"> 55</a></span> <a class="code" href="class_projector.html#a67b6267f212570f860a20d0851acb2a8">Projector::UseWindow</a>(<a class="code" href="class_window.html">Window</a>* win)</div> +<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div> +<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="struct_rect.html">Rect</a> r = win-><a class="code" href="class_window.html#a6ad7dedbf4db270d994527778ecb1951">GetRect</a>();</div> +<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="class_projector.html#a6d35ec00348ee119322905288533ae04">width</a> = r.<a class="code" href="struct_rect.html#a36b6c8bb15c7706c3b2b3e91345e11f8">w</a>;</div> +<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> = r.<a class="code" href="struct_rect.html#af9111a21106ba65952da60320ea91df6">h</a>;</div> +<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> +<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> = (<a class="code" href="class_projector.html#a6d35ec00348ee119322905288533ae04">width</a> / 2.0);</div> +<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> / 2.0);</div> +<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div> +<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="class_projector.html#a7204cf886f4aa8ba1a135a623fe24560">xclip0</a> = 0.0f;</div> +<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="class_projector.html#a5740968f97d83d2cb1c5785526b4edfe">xclip1</a> = (float) <a class="code" href="class_projector.html#a6d35ec00348ee119322905288533ae04">width</a>-0.5f;</div> +<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="class_projector.html#a313112be1309fa332ec912ec3522eb97">yclip0</a> = 0.0f;</div> +<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="class_projector.html#abc5cd1f3176630a29e18365da49bde62">yclip1</a> = (float) <a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a>-0.5f;</div> +<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div> +<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="class_projector.html#a5150cfb730462a2ae5be1368a72d1fc1">SetFieldOfView</a>(<a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a>);</div> +<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div> +<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> +<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00073"></a><span class="lineno"><a class="code" href="class_projector.html#a5150cfb730462a2ae5be1368a72d1fc1"> 73</a></span> <a class="code" href="class_projector.html#a5150cfb730462a2ae5be1368a72d1fc1">Projector::SetFieldOfView</a>(<span class="keywordtype">double</span> fov)</div> +<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> {</div> +<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a> = fov;</div> +<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div> +<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="class_projector.html#a335fc80336e3222305b927276dbd2e5d">xscreenscale</a> = <a class="code" href="class_projector.html#a6d35ec00348ee119322905288533ae04">width</a> / fov;</div> +<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="class_projector.html#a431b0fee5b328f9458f8abb5f253c376">yscreenscale</a> = <a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> / fov;</div> +<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div> +<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> = max(<a class="code" href="class_projector.html#a335fc80336e3222305b927276dbd2e5d">xscreenscale</a>, <a class="code" href="class_projector.html#a431b0fee5b328f9458f8abb5f253c376">yscreenscale</a>);</div> +<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> +<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="class_projector.html#a1b65a45585dd30f712eddad7225447a4">xangle</a> = atan(2.0/fov * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a>/<a class="code" href="class_projector.html#a335fc80336e3222305b927276dbd2e5d">xscreenscale</a>);</div> +<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="class_projector.html#a30013cdc576214dcd85725e8805deb9d">yangle</a> = atan(2.0/fov * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a>/<a class="code" href="class_projector.html#a431b0fee5b328f9458f8abb5f253c376">yscreenscale</a>);</div> +<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div> +<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> +<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keywordtype">double</span></div> +<div class="line"><a name="l00087"></a><span class="lineno"><a class="code" href="class_projector.html#adf86da1d518865df77b7594fe9c2aca3"> 87</a></span> <a class="code" href="class_projector.html#adf86da1d518865df77b7594fe9c2aca3">Projector::GetFieldOfView</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> <a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a>;</div> +<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div> +<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div> +<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00093"></a><span class="lineno"><a class="code" href="class_projector.html#a0f51a0d909a8de0956c0523daf934d37"> 93</a></span> <a class="code" href="class_projector.html#a0f51a0d909a8de0956c0523daf934d37">Projector::SetDepthScale</a>(<span class="keywordtype">float</span> scale)</div> +<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> {</div> +<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="class_projector.html#ad603abce6a07d9f8e34eefc84e738901">depth_scale</a> = scale;</div> +<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div> +<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> +<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">double</span></div> +<div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="class_projector.html#a7823eb400424937bf91edcb565f0e989"> 99</a></span> <a class="code" href="class_projector.html#a7823eb400424937bf91edcb565f0e989">Projector::GetDepthScale</a>()<span class="keyword"> const</span></div> +<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <a class="code" href="class_projector.html#ad603abce6a07d9f8e34eefc84e738901">depth_scale</a>;</div> +<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div> +<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div> +<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keywordtype">int</span></div> +<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="class_projector.html#a171bd11f7dd28f6fe87427dfc915ac6a"> 105</a></span> <a class="code" href="class_projector.html#a171bd11f7dd28f6fe87427dfc915ac6a">Projector::SetInfinite</a>(<span class="keywordtype">int</span> i)</div> +<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> {</div> +<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> old = <a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a>;</div> +<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a> = i;</div> +<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> old;</div> +<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> }</div> +<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div> +<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div> +<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00115"></a><span class="lineno"><a class="code" href="class_projector.html#a697cc10897fa7d1ed2b210e8bc8f0416"> 115</a></span> <a class="code" href="class_projector.html#a697cc10897fa7d1ed2b210e8bc8f0416">Projector::StartFrame</a>()</div> +<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> {</div> +<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="class_projector.html#a72f9efe944bf3846c54308c378de6ae9">SetUpFrustum</a>();</div> +<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="class_projector.html#a5df19d18d7709c8fd89d0081da515d12">SetWorldSpace</a>();</div> +<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div> +<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div> +<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Transform a point from worldspace to viewspace.</span></div> +<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div> +<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00126"></a><span class="lineno"><a class="code" href="class_projector.html#add21d33e99c41fb24985cd28b31b136c"> 126</a></span> <a class="code" href="class_projector.html#add21d33e99c41fb24985cd28b31b136c">Projector::Transform</a>(<a class="code" href="struct_vec3.html">Vec3</a>& vec)<span class="keyword"> const</span></div> +<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="struct_vec3.html">Vec3</a> tvert = vec;</div> +<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> +<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// Translate into a viewpoint-relative coordinate</span></div> +<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">if</span> (!<a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a>)</div> +<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  tvert -= <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a2a54ce5f1212212653acafa59809ce49">Pos</a>();</div> +<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div> +<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// old method:</span></div> +<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  vec.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>());</div> +<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  vec.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>());</div> +<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  vec.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>());</div> +<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div> +<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// Rotate into the view orientation</span></div> +<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// vec = tvert * camera->Orientation();</span></div> +<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> }</div> +<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div> +<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment">// Transform a point from worldspace to viewspace.</span></div> +<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div> +<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00148"></a><span class="lineno"><a class="code" href="class_projector.html#a24293573a220a6fd48deb753afe90a2d"> 148</a></span> <a class="code" href="class_projector.html#add21d33e99c41fb24985cd28b31b136c">Projector::Transform</a>(<a class="code" href="struct_point.html">Point</a>& point)<span class="keyword"> const</span></div> +<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="struct_point.html">Point</a> tvert = point;</div> +<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div> +<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// Translate into a viewpoint-relative coordinate</span></div> +<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">if</span> (!<a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a>)</div> +<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  tvert -= <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a2a54ce5f1212212653acafa59809ce49">Pos</a>();</div> +<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> +<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// old method:</span></div> +<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  point.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>());</div> +<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  point.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>());</div> +<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  point.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = (tvert * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>());</div> +<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div> +<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// Rotate into the view orientation</span></div> +<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// point = tvert * camera->Orientation();</span></div> +<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> }</div> +<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div> +<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// APPARENT RADIUS OF PROJECTED OBJECT</span></div> +<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// Project a viewspace point into screen coordinates.</span></div> +<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// Use projected Z to determine apparent radius of object.</span></div> +<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div> +<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="keywordtype">float</span></div> +<div class="line"><a name="l00172"></a><span class="lineno"><a class="code" href="class_projector.html#aff07007f4f61c0eef1676ec218884c27"> 172</a></span> <a class="code" href="class_projector.html#aff07007f4f61c0eef1676ec218884c27">Projector::ProjectRadius</a>(<span class="keyword">const</span> <a class="code" href="struct_vec3.html">Vec3</a>& v, <span class="keywordtype">float</span> radius)<span class="keyword"> const</span></div> +<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">return</span> (<span class="keywordtype">float</span>) fabs((radius * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a>) / v.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a>);</div> +<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> }</div> +<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div> +<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// IN PLACE PROJECTION OF POINT</span></div> +<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// Project a viewspace point into screen coordinates.</span></div> +<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// Note that the y axis goes up in worldspace and viewspace, but</span></div> +<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// goes down in screenspace.</span></div> +<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div> +<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00185"></a><span class="lineno"><a class="code" href="class_projector.html#a29d7a2c159c1ba92c56e24fe2db399ea"> 185</a></span> <a class="code" href="class_projector.html#a29d7a2c159c1ba92c56e24fe2db399ea">Projector::Project</a>(<a class="code" href="struct_vec3.html">Vec3</a>& v, <span class="keywordtype">bool</span> <a class="code" href="_multi_controller_8cpp.html#ab4386a3c477c99034324a61c197c27d4">clamp</a>)<span class="keyword"> const</span></div> +<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">double</span> zrecip;</div> +<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div> +<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (<a class="code" href="class_projector.html#a90464faee2f797a7c9621fd03184cba1">orthogonal</a>) {</div> +<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">double</span> scale = <a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a>/2;</div> +<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + scale * v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a>);</div> +<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + scale * v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a>));</div> +<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  v.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (float) (0.0f);</div> +<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div> +<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div> +<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">//zrecip = 2 * (1.0e5 / (1.0e5-1)) / v.z;</span></div> +<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">//zrecip = 2 * 0.97 / v.z; -- what the heck was this version used for?</span></div> +<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div> +<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  zrecip = 2 / v.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a>;</div> +<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> * zrecip);</div> +<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> * zrecip));</div> +<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  v.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (float) (1 - zrecip);</div> +<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div> +<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div> +<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// clamp the point to the viewport:</span></div> +<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (clamp) {</div> +<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> < <a class="code" href="class_projector.html#a7204cf886f4aa8ba1a135a623fe24560">xclip0</a>) v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = <a class="code" href="class_projector.html#a7204cf886f4aa8ba1a135a623fe24560">xclip0</a>;</div> +<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> > <a class="code" href="class_projector.html#a5740968f97d83d2cb1c5785526b4edfe">xclip1</a>) v.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = <a class="code" href="class_projector.html#a5740968f97d83d2cb1c5785526b4edfe">xclip1</a>;</div> +<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> < <a class="code" href="class_projector.html#a313112be1309fa332ec912ec3522eb97">yclip0</a>) v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = <a class="code" href="class_projector.html#a313112be1309fa332ec912ec3522eb97">yclip0</a>;</div> +<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> > <a class="code" href="class_projector.html#abc5cd1f3176630a29e18365da49bde62">yclip1</a>) v.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = <a class="code" href="class_projector.html#abc5cd1f3176630a29e18365da49bde62">yclip1</a>;</div> +<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  }</div> +<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div> +<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div> +<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// IN PLACE PROJECTION OF POINT</span></div> +<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Project a viewspace point into screen coordinates.</span></div> +<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// Note that the y axis goes up in worldspace and viewspace, but</span></div> +<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">// goes down in screenspace.</span></div> +<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div> +<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00223"></a><span class="lineno"><a class="code" href="class_projector.html#a57247a0cf290dd7a4bfce9b5863de5ba"> 223</a></span> <a class="code" href="class_projector.html#a29d7a2c159c1ba92c56e24fe2db399ea">Projector::Project</a>(<a class="code" href="struct_point.html">Point</a>& v, <span class="keywordtype">bool</span> <a class="code" href="_multi_controller_8cpp.html#ab4386a3c477c99034324a61c197c27d4">clamp</a>)<span class="keyword"> const</span></div> +<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">double</span> zrecip;</div> +<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div> +<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">if</span> (<a class="code" href="class_projector.html#a90464faee2f797a7c9621fd03184cba1">orthogonal</a>) {</div> +<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordtype">double</span> scale = <a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a>/2;</div> +<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + scale * v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a>);</div> +<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + scale * v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a>));</div> +<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = 0;</div> +<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  }</div> +<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div> +<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  zrecip = 1 / v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a>;</div> +<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + 2 * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> * zrecip);</div> +<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + 2 * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> * zrecip));</div> +<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = (1 - zrecip);</div> +<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div> +<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div> +<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">// clamp the point to the viewport:</span></div> +<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> (clamp) {</div> +<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> < <a class="code" href="class_projector.html#a7204cf886f4aa8ba1a135a623fe24560">xclip0</a>) v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = <a class="code" href="class_projector.html#a7204cf886f4aa8ba1a135a623fe24560">xclip0</a>;</div> +<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> > <a class="code" href="class_projector.html#a5740968f97d83d2cb1c5785526b4edfe">xclip1</a>) v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = <a class="code" href="class_projector.html#a5740968f97d83d2cb1c5785526b4edfe">xclip1</a>;</div> +<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> < <a class="code" href="class_projector.html#a313112be1309fa332ec912ec3522eb97">yclip0</a>) v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = <a class="code" href="class_projector.html#a313112be1309fa332ec912ec3522eb97">yclip0</a>;</div> +<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span> (v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> > <a class="code" href="class_projector.html#abc5cd1f3176630a29e18365da49bde62">yclip1</a>) v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = <a class="code" href="class_projector.html#abc5cd1f3176630a29e18365da49bde62">yclip1</a>;</div> +<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div> +<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div> +<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div> +<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// IN PLACE UN-PROJECTION OF POINT</span></div> +<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// Convert a point in screen coordinates back to viewspace.</span></div> +<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment">// Note that the y axis goes up in worldspace and viewspace, but</span></div> +<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// goes down in screenspace.</span></div> +<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div> +<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00258"></a><span class="lineno"><a class="code" href="class_projector.html#a6b2e7e15c2a2470e772fe82ab2afeea2"> 258</a></span> <a class="code" href="class_projector.html#a6b2e7e15c2a2470e772fe82ab2afeea2">Projector::Unproject</a>(<a class="code" href="struct_point.html">Point</a>& v)<span class="keyword"> const</span></div> +<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordtype">double</span> zrecip = 1 / v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a>;</div> +<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div> +<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">/***</span></div> +<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> * forward projection:</span></div> +<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment">v.x = (xcenter + maxscale * v.x * zrecip);</span></div> +<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment">v.y = (height - (ycenter + maxscale * v.y * zrecip));</span></div> +<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment">v.z = (1 - zrecip);</span></div> +<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment">***/</span></div> +<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div> +<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = ( v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> - <a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a>) / (<a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * zrecip);</div> +<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> - <a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a>) / (<a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * zrecip);</div> +<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div> +<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div> +<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">// IN PLACE PROJECTION OF RECTANGLE (FOR SPRITES)</span></div> +<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// Project a viewspace point into screen coordinates.</span></div> +<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">// Note that the y axis goes up in worldspace and viewspace, but</span></div> +<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// goes down in screenspace.</span></div> +<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div> +<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00281"></a><span class="lineno"><a class="code" href="class_projector.html#a66c25e4f5a1085a1b039b03f9260bf7f"> 281</a></span> <a class="code" href="class_projector.html#a66c25e4f5a1085a1b039b03f9260bf7f">Projector::ProjectRect</a>(<a class="code" href="struct_point.html">Point</a>& v, <span class="keywordtype">double</span>& w, <span class="keywordtype">double</span>& h)<span class="keyword"> const</span></div> +<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordtype">double</span> zrecip;</div> +<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div> +<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (<a class="code" href="class_projector.html#a90464faee2f797a7c9621fd03184cba1">orthogonal</a>) {</div> +<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">double</span> scale = <a class="code" href="class_projector.html#a50e2e1ff4d4124296d2879de4f0dc5e3">field_of_view</a>/2;</div> +<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + scale * v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a>);</div> +<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + scale * v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a>));</div> +<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = 0;</div> +<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div> +<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div> +<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  zrecip = 1 / v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a>;</div> +<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = (<a class="code" href="class_projector.html#ab77e4a3b1f98bcb89239d50d9e036c0e">xcenter</a> + 2 * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> * zrecip);</div> +<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = (<a class="code" href="class_projector.html#a20e51ff915afea07c6a4c9a86303f441">height</a> - (<a class="code" href="class_projector.html#a0bb898f0dc68049f9e4018964cb07c30">ycenter</a> + 2 * <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * v.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> * zrecip));</div> +<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  v.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = (1 - Z_NEAR*zrecip);</div> +<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div> +<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  w *= <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * zrecip;</div> +<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  h *= <a class="code" href="class_projector.html#af5b4db205941cdf2df576cc4400a1dcb">maxscale</a> * zrecip;</div> +<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div> +<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> }</div> +<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div> +<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="comment">// Set up a clip plane with the specified normal.</span></div> +<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div> +<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00308"></a><span class="lineno"><a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57"> 308</a></span> <a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57">Projector::SetWorldspaceClipPlane</a>(<a class="code" href="struct_vec3.html">Vec3</a>& normal, <a class="code" href="struct_plane.html">Plane</a>& plane)</div> +<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> {</div> +<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// Rotate the plane normal into worldspace</span></div> +<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <a class="code" href="class_projector.html#af621eadeb953c933d2e490ec5d1e6704">ViewToWorld</a>(normal, plane.<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a>);</div> +<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  plane.<a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a> = (float) (<a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a2a54ce5f1212212653acafa59809ce49">Pos</a>() * plane.<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a> + CLIP_PLANE_EPSILON);</div> +<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> }</div> +<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div> +<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// Set up the planes of the frustum, in worldspace coordinates.</span></div> +<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div> +<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00320"></a><span class="lineno"><a class="code" href="class_projector.html#a72f9efe944bf3846c54308c378de6ae9"> 320</a></span> <a class="code" href="class_projector.html#a72f9efe944bf3846c54308c378de6ae9">Projector::SetUpFrustum</a>()</div> +<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> {</div> +<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordtype">double</span> angle, s, c;</div> +<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <a class="code" href="struct_vec3.html">Vec3</a> normal;</div> +<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div> +<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  angle = <a class="code" href="class_projector.html#ae94b7cd2c8cf79e09af05ede625164e3">XAngle</a>();</div> +<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  s = sin(angle);</div> +<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  c = cos(angle);</div> +<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div> +<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// Left clip plane</span></div> +<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  normal.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) s;</div> +<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  normal.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) 0;</div> +<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  normal.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (float) c;</div> +<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[0].<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a> = normal;</div> +<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[0].<a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a> = CLIP_PLANE_EPSILON;</div> +<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57">SetWorldspaceClipPlane</a>(normal, <a class="code" href="class_projector.html#af7abd1458dadb1a16453bfa7b74580bf">world_planes</a>[0]);</div> +<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div> +<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// Right clip plane</span></div> +<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  normal.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) -s;</div> +<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[1].<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a> = normal;</div> +<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[1].<a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a> = CLIP_PLANE_EPSILON;</div> +<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57">SetWorldspaceClipPlane</a>(normal, <a class="code" href="class_projector.html#af7abd1458dadb1a16453bfa7b74580bf">world_planes</a>[1]);</div> +<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div> +<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  angle = <a class="code" href="class_projector.html#a971223ccc29717660854d537defa38e9">YAngle</a>();</div> +<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  s = sin(angle);</div> +<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  c = cos(angle);</div> +<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div> +<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// Bottom clip plane</span></div> +<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  normal.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) 0;</div> +<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  normal.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) s;</div> +<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  normal.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (float) c;</div> +<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[2].<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a> = normal;</div> +<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[2].<a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a> = CLIP_PLANE_EPSILON;</div> +<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57">SetWorldspaceClipPlane</a>(normal, <a class="code" href="class_projector.html#af7abd1458dadb1a16453bfa7b74580bf">world_planes</a>[2]);</div> +<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div> +<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// Top clip plane</span></div> +<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  normal.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) -s;</div> +<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[3].<a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a> = normal;</div> +<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <a class="code" href="class_projector.html#ab92dedfb8c690cd9eb11f7050c7174c8">view_planes</a>[3].<a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a> = CLIP_PLANE_EPSILON;</div> +<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <a class="code" href="class_projector.html#aaa9796b992aae72b7b9daa17de393b57">SetWorldspaceClipPlane</a>(normal, <a class="code" href="class_projector.html#af7abd1458dadb1a16453bfa7b74580bf">world_planes</a>[3]);</div> +<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> }</div> +<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div> +<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment">// Clip the point against the frustum and return 1 if partially inside</span></div> +<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment">// Return 2 if completely inside</span></div> +<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> </div> +<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="keywordtype">int</span></div> +<div class="line"><a name="l00368"></a><span class="lineno"><a class="code" href="class_projector.html#a3bbbe83d9781f286738e24078a500658"> 368</a></span> <a class="code" href="class_projector.html#a3bbbe83d9781f286738e24078a500658">Projector::IsVisible</a>(<span class="keyword">const</span> <a class="code" href="struct_vec3.html">Vec3</a>& v, <span class="keywordtype">float</span> radius)<span class="keyword"> const</span></div> +<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordtype">int</span> visible = 1;</div> +<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordtype">int</span> complete = 1;</div> +<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div> +<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <a class="code" href="struct_plane.html">Plane</a>* plane = (<a class="code" href="struct_plane.html">Plane</a>*) <a class="code" href="class_projector.html#a0682d7ef389d83b44dc9b7b88ddaa187">frustum_planes</a>;</div> +<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">if</span> (<a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a>) {</div> +<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  complete = 0;</div> +<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div> +<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; visible && (i < <a class="code" href="class_projector.html#a9ea7a82cdde73f84b5dd34a70e7f5665a28b4c4ad91fe6f01307c97062386ca70">NUM_FRUSTUM_PLANES</a>); i++) {</div> +<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  visible = ((v * plane-><a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a>) >= CLIP_PLANE_EPSILON);</div> +<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  plane++;</div> +<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div> +<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  }</div> +<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; visible && (i < <a class="code" href="class_projector.html#a9ea7a82cdde73f84b5dd34a70e7f5665a28b4c4ad91fe6f01307c97062386ca70">NUM_FRUSTUM_PLANES</a>); i++) {</div> +<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordtype">float</span> dot = v * plane-><a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a>;</div> +<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  visible = ((dot + radius) >= plane-><a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a>);</div> +<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  complete = complete && ((dot - radius) >= plane-><a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a>);</div> +<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  plane++;</div> +<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  }</div> +<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div> +<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div> +<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">return</span> visible + complete;</div> +<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> }</div> +<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div> +<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment">// Clip the bouding point against the frustum and return non zero</span></div> +<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// if at least partially inside. This version is not terribly</span></div> +<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment">// efficient as it checks all eight box corners rather than just</span></div> +<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment">// the minimum two.</span></div> +<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div> +<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="keywordtype">int</span></div> +<div class="line"><a name="l00402"></a><span class="lineno"><a class="code" href="class_projector.html#a5cc78dfff1937c498cc27ae2d15bda4d"> 402</a></span> <a class="code" href="class_projector.html#a5cc78dfff1937c498cc27ae2d15bda4d">Projector::IsBoxVisible</a>(<span class="keyword">const</span> <a class="code" href="struct_point.html">Point</a>* p)<span class="keyword"> const</span></div> +<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordtype">int</span> i, j, outside = 0;</div> +<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div> +<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">// if all eight corners are outside of the same</span></div> +<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="comment">// frustrum plane, then the box is not visible</span></div> +<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="struct_plane.html">Plane</a>* plane = (<a class="code" href="struct_plane.html">Plane</a>*) <a class="code" href="class_projector.html#a0682d7ef389d83b44dc9b7b88ddaa187">frustum_planes</a>;</div> +<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div> +<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">if</span> (<a class="code" href="class_projector.html#aec9cae6c66bb8c3725198299ddcf0f8d">infinite</a>) {</div> +<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">for</span> (i = 0; !outside && (i < <a class="code" href="class_projector.html#a9ea7a82cdde73f84b5dd34a70e7f5665a28b4c4ad91fe6f01307c97062386ca70">NUM_FRUSTUM_PLANES</a>); i++) {</div> +<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">for</span> (j = 0; j < 8; j++)</div> +<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  outside += (p[j] * plane-><a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a>) < CLIP_PLANE_EPSILON;</div> +<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div> +<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">if</span> (outside < 8)</div> +<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  outside = 0;</div> +<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div> +<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  plane++;</div> +<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  }</div> +<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  }</div> +<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">for</span> (i = 0; !outside && (i < <a class="code" href="class_projector.html#a9ea7a82cdde73f84b5dd34a70e7f5665a28b4c4ad91fe6f01307c97062386ca70">NUM_FRUSTUM_PLANES</a>); i++) {</div> +<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">for</span> (j = 0; j < 8; j++)</div> +<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  outside += (p[j] * plane-><a class="code" href="struct_plane.html#a4fca1d30bfad2542c8e38aa32ff13655">normal</a>) < plane-><a class="code" href="struct_plane.html#a6ad7fdbb1461aa0527eb1f6745e10962">distance</a>;</div> +<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div> +<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (outside < 8)</div> +<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  outside = 0;</div> +<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div> +<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  plane++;</div> +<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</div> +<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  }</div> +<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div> +<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="comment">// if not outside, then the box is visible</span></div> +<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">return</span> !outside;</div> +<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> }</div> +<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div> +<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div> +<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="keywordtype">float</span></div> +<div class="line"><a name="l00440"></a><span class="lineno"><a class="code" href="class_projector.html#aae65ad2916acf6c48cd118d639509131"> 440</a></span> <a class="code" href="class_projector.html#aae65ad2916acf6c48cd118d639509131">Projector::ApparentRadius</a>(<span class="keyword">const</span> <a class="code" href="struct_vec3.html">Vec3</a>& v, <span class="keywordtype">float</span> radius)<span class="keyword"> const</span></div> +<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="keyword"></span>{</div> +<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="code" href="struct_vec3.html">Vec3</a> vloc = v;</div> +<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div> +<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <a class="code" href="class_projector.html#add21d33e99c41fb24985cd28b31b136c">Transform</a>(vloc); <span class="comment">// transform in place</span></div> +<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">return</span> <a class="code" href="class_projector.html#aff07007f4f61c0eef1676ec218884c27">ProjectRadius</a>(vloc, radius);</div> +<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> }</div> +<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div> +<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div> +<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment">// Rotate a vector from viewspace to worldspace.</span></div> +<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment">// +--------------------------------------------------------------------+</span></div> +<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> </div> +<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00454"></a><span class="lineno"><a class="code" href="class_projector.html#af621eadeb953c933d2e490ec5d1e6704"> 454</a></span> <a class="code" href="class_projector.html#af621eadeb953c933d2e490ec5d1e6704">Projector::ViewToWorld</a>(<a class="code" href="struct_point.html">Point</a>& pin, <a class="code" href="struct_point.html">Point</a>& pout)</div> +<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> {</div> +<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// Rotate into the world orientation</span></div> +<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  pout.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> = pin.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> + pin.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> + pin.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a>;</div> +<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  pout.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> = pin.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> + pin.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> + pin.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a>;</div> +<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  pout.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> = pin.<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> + pin.<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> + pin.<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a>;</div> +<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> }</div> +<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div> +<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00463"></a><span class="lineno"><a class="code" href="class_projector.html#acf382b57c4eb06cb5ae3cb9cc1b28acb"> 463</a></span> <a class="code" href="class_projector.html#af621eadeb953c933d2e490ec5d1e6704">Projector::ViewToWorld</a>(<a class="code" href="struct_vec3.html">Vec3</a>& vin, <a class="code" href="struct_vec3.html">Vec3</a>& vout)</div> +<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> {</div> +<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="comment">// Rotate into the world orientation</span></div> +<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  vout.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> = (float) (vin.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> + vin.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a> + vin.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#ab99c56589bc8ad5fa5071387110a5bc7">x</a>);</div> +<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  vout.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> = (float) (vin.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> + vin.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a> + vin.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#afa38be143ae800e6ad69ce8ed4df62d8">y</a>);</div> +<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  vout.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> = (float) (vin.<a class="code" href="struct_vec3.html#a2814580e9b9372738c0a61197ea46b51">x</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a276d8f65ae6c09a07add9f63bd356704">vrt</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> + vin.<a class="code" href="struct_vec3.html#abc1d241232cb04aa98217a942402ae68">y</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a38ab2061d58da025e9c95267505686ab">vup</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a> + vin.<a class="code" href="struct_vec3.html#a64f3f00cd2dd9076999eeb2f05210388">z</a> * <a class="code" href="class_projector.html#a137a33c132cad67bc756f91573d2ee8d">camera</a>-><a class="code" href="class_camera.html#a6767fa21da7413fe049cf64eed98f02f">vpn</a>().<a class="code" href="struct_point.html#a05ba3b1dfcb19430582ae953cbbfbded">z</a>);</div> +<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> }</div> +<div class="line"><a name="l00470"></a><span class="lineno"> 470</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_d6625d0f3efd9eb70ff961583505095b.html">nGenEx</a></li><li class="navelem"><a class="el" href="_projector_8cpp.html">Projector.cpp</a></li> + <li class="footer">Generated on Thu May 31 2012 16:30:58 for Starshatter_Open by + <a href="http://www.doxygen.org/index.html"> + 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