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diff --git a/docs/doxygen/nel/a02629.html b/docs/doxygen/nel/a02629.html new file mode 100644 index 00000000..65c8e892 --- /dev/null +++ b/docs/doxygen/nel/a02629.html @@ -0,0 +1,165 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> +<title>NeL: NL3D::CHeatHaze class Reference</title> +<link href="doxygen.css" rel="stylesheet" type="text/css"> +</head><body> +<!-- Generated by Doxygen 1.3.6 --> +<div class="qindex"> <form class="search" action="search.php" method="get"> +<a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a> | <span class="search"><u>S</u>earch for <input class="search" type="text" name="query" value="" size="20" accesskey="s"/></span></form></div> +<h1>NL3D::CHeatHaze Class Reference</h1><code>#include <<a class="el" href="a05784.html">heat_haze.h</a>></code> +<p> +<hr><a name="_details"></a><h2>Detailed Description</h2> +This perform a heat haze effect at the horizon of the scene. This make use of 2d deformation of the frame buffer <dl compact><dt><b>Parameters:</b></dt><dd> + <table border="0" cellspacing="2" cellpadding="0"> + <tr><td valign=top><em>width</em> </td><td>: viewport width </td></tr> + <tr><td valign=top><em>height</em> </td><td>: viewport height </td></tr> + </table> +</dl> +<dl compact><dt><b>Author:</b></dt><dd>Nicolas Vizerie <p> +Nevrax France </dd></dl> +<dl compact><dt><b>Date:</b></dt><dd>2001 </dd></dl> + +<p> + +<p> +Definition at line <a class="el" href="a05784.html#l00047">47</a> of file <a class="el" href="a05784.html">heat_haze.h</a>.<table border=0 cellpadding=0 cellspacing=0> +<tr><td></td></tr> +<tr><td colspan=2><br><h2>Static Public Member Functions</h2></td></tr> +<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a02629.html#NL3D_1_1CHeatHazee0">performHeatHaze</a> (<a class="el" href="a04558.html#a15">uint</a> <a class="el" href="a04223.html#a632">width</a>, <a class="el" href="a04558.html#a15">uint</a> <a class="el" href="a04223.html#a633">height</a>, <a class="el" href="a03348.html">CScene</a> &<a class="el" href="a04223.html#a626">s</a>, <a class="el" href="a02434.html">IDriver</a> *drv)</td></tr> + +</table> +<hr><h2>Member Function Documentation</h2> +<a class="anchor" name="NL3D_1_1CHeatHazee0" doxytag="NL3D::CHeatHaze::performHeatHaze" ></a><p> +<table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> + <tr> + <td class="mdRow"> + <table cellpadding="0" cellspacing="0" border="0"> + <tr> + <td class="md" nowrap valign="top"> void NL3D::CHeatHaze::performHeatHaze </td> + <td class="md" valign="top">( </td> + <td class="md" nowrap valign="top"><a class="el" href="a04558.html#a15">uint</a> </td> + <td class="mdname" nowrap> <em>width</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap><a class="el" href="a04558.html#a15">uint</a> </td> + <td class="mdname" nowrap> <em>height</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap><a class="el" href="a03348.html">CScene</a> & </td> + <td class="mdname" nowrap> <em>s</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap><a class="el" href="a02434.html">IDriver</a> * </td> + <td class="mdname" nowrap> <em>drv</em></td> + </tr> + <tr> + <td></td> + <td class="md">) </td> + <td class="md" colspan="2"><code> [static]</code></td> + </tr> + + </table> + </td> + </tr> +</table> +<table cellspacing=5 cellpadding=0 border=0> + <tr> + <td> + + </td> + <td> + +<p> + +<p> +Definition at line <a class="el" href="a05783.html#l00051">51</a> of file <a class="el" href="a05783.html">heat_haze.cpp</a>. +<p> +References <a class="el" href="a05363.html#a27">NL3D::_SinWave</a>, <a class="el" href="a06171.html#l00052">NLMISC::CPlane::a</a>, <a class="el" href="a06171.html#l00052">NLMISC::CPlane::c</a>, <a class="el" href="a06171.html#l00052">NLMISC::CPlane::d</a>, <a class="el" href="a05646.html#l01013">height</a>, <a class="el" href="a05972.html#l01090">NLMISC::CMatrix::inverted()</a>, <a class="el" href="a06170.html#l00036">NLMISC::CPlane::make()</a>, <a class="el" href="a06682.html#l00119">NLMISC::CVector::normalize()</a>, <a class="el" href="a05646.html#l00977">s</a>, <a class="el" href="a06682.html#l00136">NLMISC::CVector::set()</a>, <a class="el" href="a05981.html#l00104">sint</a>, <a class="el" href="a05981.html#l00105">uint</a>, <a class="el" href="a05646.html#l01013">width</a>, <a class="el" href="a06673.html#l00051">NLMISC::CVector::x</a>, and <a class="el" href="a06673.html#l00051">NLMISC::CVector::z</a>. +<p> +<div class="fragment"><pre>00052 { +00053 <a class="code" href="a02851.html">NLMISC::CMatrix</a> m = <a class="code" href="a04223.html#a626">s</a>.getCam()->getMatrix(); +00054 <a class="code" href="a02851.html">NLMISC::CMatrix</a> im = m.<a class="code" href="a02851.html#NLMISC_1_1CMatrixz1967_1">inverted</a>(); +00055 +00056 <span class="comment">// compute the shape of the horizon</span> +00057 +00058 <span class="comment">// first we compute the direction of the world up vector in the viewer basis. </span> +00059 <a class="code" href="a03128.html">NLMISC::CVector</a> up = im * <a class="code" href="a03128.html#NLMISC_1_1CVectors2">NLMISC::CVector::K</a>; +00060 <span class="comment">// project onto the I and K vectors</span> +00061 <span class="keywordtype">float</span> upNorm = (up.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> * up.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> + up.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a> * up.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>); +00062 +00063 <span class="keyword">const</span> <span class="keywordtype">float</span> threshold = 10E-4f; +00064 +00065 <span class="keywordflow">if</span> (upNorm < threshold) <span class="keywordflow">return</span>; <span class="comment">// the viewer is looking above or below himlself</span> +00066 +00067 <span class="comment">// Compute the right vector. This is done by intersecting the horizon plane with a near plane. </span> +00068 <span class="comment">// to do this, we transform the horizon plane into the view basis.This may be optimized, but is not critical.</span> +00069 <span class="comment">//</span> +00070 <a class="code" href="a03082.html">NLMISC::CPlane</a> h; +00071 h.<a class="code" href="a03082.html#NLMISC_1_1CPlanez1990_2">make</a>(NLMISC::CVector::K, NLMISC::CVector::Null); +00072 +00073 h = h * m; <span class="comment">// note : this multiply by the transposition of m</span> +00074 +00075 <span class="comment">// intersect with near plane : we got y = 0, which gives us, as a right vector :</span> +00076 <span class="comment">// if c is not 0, we got : x = 1 and z = (-a - d) / c as a working solution.</span> +00077 <span class="comment">// Else we got x = (- d - c )/ a and z = 1</span> +00078 +00079 +00080 <a class="code" href="a03128.html">NLMISC::CVector</a> right; +00081 +00082 <span class="keywordflow">if</span> (fabsf(h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo2">c</a>) > threshold) +00083 { +00084 right.<a class="code" href="a03128.html#NLMISC_1_1CVectorz2051_8">set</a>(1, 0, (h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo0">a</a> + h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo3">d</a>) / - h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo2">c</a> ); +00085 } +00086 <span class="keywordflow">else</span> +00087 { +00088 right.<a class="code" href="a03128.html#NLMISC_1_1CVectorz2051_8">set</a>( (h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo3">d</a> + h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo2">c</a>) / h.<a class="code" href="a03082.html#NLMISC_1_1CPlaneo0">a</a>, 0, 1); +00089 } +00090 +00091 right.<a class="code" href="a03128.html#NLMISC_1_1CVectorz2049_1">normalize</a>(); +00092 +00093 <span class="comment">// now, find a point on screen that lay on the horizon line</span> +00094 <span class="keyword">static</span> std::vector<NLMISC::CVector2f> poly(4); +00095 +00096 +00097 +00098 <span class="keyword">const</span> <a class="code" href="a04558.html#a14">sint</a> xCenter = <a class="code" href="a04223.html#a632">width</a> >> 1; +00099 <span class="keyword">const</span> <a class="code" href="a04558.html#a14">sint</a> yCenter = <a class="code" href="a04223.html#a633">height</a> >> 1; +00100 +00101 <span class="keyword">const</span> <span class="keywordtype">float</span> horizonHeight = (<span class="keywordtype">float</span>) (<a class="code" href="a04223.html#a633">height</a> >> 2); +00102 <span class="keyword">const</span> <span class="keywordtype">float</span> horizonWidth = (<span class="keywordtype">float</span>) (<a class="code" href="a04223.html#a632">width</a> >> 2); +00103 +00104 <a class="code" href="a03128.html">NLMISC::CVector</a> tmp ; +00105 +00106 tmp = horizonWidth * right + horizonHeight * up; +00107 poly[0] = <a class="code" href="a03660.html">NLMISC::CVector2f</a>(xCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>, yCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>) ; +00108 tmp = horizonWidth * right - horizonHeight * up; +00109 poly[1] = NLMISC::CVector2f(xCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>, yCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>) ; +00110 tmp = - horizonWidth * right - horizonHeight * up; +00111 poly[2] = NLMISC::CVector2f(xCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>, yCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>); +00112 tmp = - horizonWidth * right + horizonHeight * up; +00113 poly[3] = NLMISC::CVector2f(xCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>, yCenter + tmp.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>); +00114 +00115 +00116 CDeform2d::doDeform(poly, drv, &_SinWave); +00117 +00118 +00119 +00120 +00121 } +</pre></div> </td> + </tr> +</table> +<hr>The documentation for this class was generated from the following files:<ul> +<li><a class="el" href="a05784.html">heat_haze.h</a><li><a class="el" href="a05783.html">heat_haze.cpp</a></ul> +<hr size="1"><address style="align: right;"><small>Generated on Tue Mar 16 06:47:03 2004 for NeL by +<a href="http://www.doxygen.org/index.html"> +<img src="doxygen.png" alt="doxygen" align="middle" border=0 > +</a>1.3.6 </small></address> +</body> +</html> |