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<h1>ThresholdShader.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// This file may be redistributed and modified only under the terms of</span>
<a name="l00002"></a>00002 <span class="comment">// the GNU General Public License (See COPYING for details).</span>
<a name="l00003"></a>00003 <span class="comment">// Copyright (C) 2003 Alistair Riddoch</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#ifndef MERCATOR_FILL_THRESHOLD_SHADER_H</span>
<a name="l00006"></a>00006 <span class="preprocessor"></span><span class="preprocessor">#define MERCATOR_FILL_THRESHOLD_SHADER_H</span>
<a name="l00007"></a>00007 <span class="preprocessor"></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <Mercator/Shader.h></span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="keyword">namespace </span>Mercator {
<a name="l00011"></a>00011
<a name="l00013"></a><a class="code" href="classMercator_1_1HighShader.html">00013</a> <span class="keyword">class </span><a class="code" href="classMercator_1_1HighShader.html" title="Surface shader that defines the surface above a given level.">HighShader</a> : <span class="keyword">public</span> <a class="code" href="classMercator_1_1Shader.html" title="Base class for Shader objects which create surface data for use when rendering terrain...">Shader</a> {
<a name="l00014"></a>00014 <span class="keyword">private</span>:
<a name="l00016"></a><a class="code" href="classMercator_1_1HighShader.html#e8ad49698969c9dfc83216e29033cf05">00016</a> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1HighShader.html#e8ad49698969c9dfc83216e29033cf05" title="The level above which the shader renders.">m_threshold</a>;
<a name="l00017"></a>00017 <span class="keyword">public</span>:
<a name="l00019"></a><a class="code" href="classMercator_1_1HighShader.html#92b2c5c7d5672a467b79130c82542939">00019</a> <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classMercator_1_1HighShader.html#92b2c5c7d5672a467b79130c82542939" title="Key string used when specifying the threshold parameter.">key_threshold</a>;
<a name="l00020"></a>00020
<a name="l00022"></a><a class="code" href="classMercator_1_1HighShader.html#369264f8e093ec8ede9d80eb4c7400ab">00022</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1HighShader.html#369264f8e093ec8ede9d80eb4c7400ab" title="Default level above which the shader renders.">default_threshold</a>;
<a name="l00023"></a>00023
<a name="l00027"></a>00027 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1HighShader.html#0c0fa63abb758a2ab5ddc946835a6081" title="Constructor.">HighShader</a>(<span class="keywordtype">float</span> <a class="code" href="classMercator_1_1HighShader.html#06df7a33d408624b51b05e00db2a2133" title="Accessor for level above which the shader renders.">threshold</a> = <a class="code" href="classMercator_1_1HighShader.html#369264f8e093ec8ede9d80eb4c7400ab" title="Default level above which the shader renders.">default_threshold</a>);
<a name="l00031"></a>00031 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1HighShader.html#0c0fa63abb758a2ab5ddc946835a6081" title="Constructor.">HighShader</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Shader.html#1e99426c6c90afbb8c54114bb692b861" title="STL map of parameter values for a shader constructor.">Parameters</a> & params);
<a name="l00032"></a>00032 <span class="keyword">virtual</span> ~<a class="code" href="classMercator_1_1HighShader.html" title="Surface shader that defines the surface above a given level.">HighShader</a>();
<a name="l00033"></a>00033
<a name="l00035"></a><a class="code" href="classMercator_1_1HighShader.html#06df7a33d408624b51b05e00db2a2133">00035</a> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1HighShader.html#06df7a33d408624b51b05e00db2a2133" title="Accessor for level above which the shader renders.">threshold</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classMercator_1_1HighShader.html#e8ad49698969c9dfc83216e29033cf05" title="The level above which the shader renders.">m_threshold</a>; }
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classMercator_1_1HighShader.html#7bbd519b8ea89fc2b287b43a2b303259" title="Check whether this Shader has any effect on the given Segment.">checkIntersect</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Segment.html" title="Class storing heightfield and other data for a single fixed size square area of terrain...">Segment</a> &) <span class="keyword">const</span>;
<a name="l00038"></a>00038 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classMercator_1_1HighShader.html#9f5e9b29e8d94b426f58f56f49476f5b" title="Populate a Surface with data.">shade</a>(<a class="code" href="classMercator_1_1Surface.html" title="Data store for terrain surface data.">Surface</a> &) <span class="keyword">const</span>;
<a name="l00039"></a>00039 };
<a name="l00040"></a>00040
<a name="l00042"></a><a class="code" href="classMercator_1_1LowShader.html">00042</a> <span class="keyword">class </span><a class="code" href="classMercator_1_1LowShader.html" title="Surface shader that defines the surface below a given level.">LowShader</a> : <span class="keyword">public</span> <a class="code" href="classMercator_1_1Shader.html" title="Base class for Shader objects which create surface data for use when rendering terrain...">Shader</a> {
<a name="l00043"></a>00043 <span class="keyword">private</span>:
<a name="l00045"></a><a class="code" href="classMercator_1_1LowShader.html#831175a69635415ec671c28dc576943d">00045</a> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1LowShader.html#831175a69635415ec671c28dc576943d" title="The level below which the shader renders.">m_threshold</a>;
<a name="l00046"></a>00046 <span class="keyword">public</span>:
<a name="l00048"></a><a class="code" href="classMercator_1_1LowShader.html#0720be7a89ab1e0406ac6145d3816788">00048</a> <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classMercator_1_1LowShader.html#0720be7a89ab1e0406ac6145d3816788" title="Key string used when specifying the threshold parameter.">key_threshold</a>;
<a name="l00049"></a>00049
<a name="l00051"></a><a class="code" href="classMercator_1_1LowShader.html#43124867332cdf0fad0c1faa3d162e9e">00051</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1LowShader.html#43124867332cdf0fad0c1faa3d162e9e" title="Default level below which the shader renders.">default_threshold</a>;
<a name="l00052"></a>00052
<a name="l00056"></a>00056 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1LowShader.html#c6ac77675fd962fe26b1cdaf634684a6" title="Constructor.">LowShader</a>(<span class="keywordtype">float</span> <a class="code" href="classMercator_1_1LowShader.html#3197599acf7618c0d9f088148b066dbf" title="Accessor for level below which the shader renders.">threshold</a> = <a class="code" href="classMercator_1_1LowShader.html#43124867332cdf0fad0c1faa3d162e9e" title="Default level below which the shader renders.">default_threshold</a>);
<a name="l00060"></a>00060 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1LowShader.html#c6ac77675fd962fe26b1cdaf634684a6" title="Constructor.">LowShader</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Shader.html#1e99426c6c90afbb8c54114bb692b861" title="STL map of parameter values for a shader constructor.">Parameters</a> & params);
<a name="l00061"></a>00061 <span class="keyword">virtual</span> ~<a class="code" href="classMercator_1_1LowShader.html" title="Surface shader that defines the surface below a given level.">LowShader</a>();
<a name="l00062"></a>00062
<a name="l00064"></a><a class="code" href="classMercator_1_1LowShader.html#3197599acf7618c0d9f088148b066dbf">00064</a> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1LowShader.html#3197599acf7618c0d9f088148b066dbf" title="Accessor for level below which the shader renders.">threshold</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classMercator_1_1LowShader.html#831175a69635415ec671c28dc576943d" title="The level below which the shader renders.">m_threshold</a>; }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classMercator_1_1LowShader.html#e0fe5a8d9f18b5eb9508d90553a5eba5" title="Check whether this Shader has any effect on the given Segment.">checkIntersect</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Segment.html" title="Class storing heightfield and other data for a single fixed size square area of terrain...">Segment</a> &) <span class="keyword">const</span>;
<a name="l00067"></a>00067 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classMercator_1_1LowShader.html#fa4aef09a28999336f35a92c4ae812b8" title="Populate a Surface with data.">shade</a>(<a class="code" href="classMercator_1_1Surface.html" title="Data store for terrain surface data.">Surface</a> &) <span class="keyword">const</span>;
<a name="l00068"></a>00068 };
<a name="l00069"></a>00069
<a name="l00071"></a><a class="code" href="classMercator_1_1BandShader.html">00071</a> <span class="keyword">class </span><a class="code" href="classMercator_1_1BandShader.html" title="Surface shader that defines the surface between two levels.">BandShader</a> : <span class="keyword">public</span> <a class="code" href="classMercator_1_1Shader.html" title="Base class for Shader objects which create surface data for use when rendering terrain...">Shader</a> {
<a name="l00072"></a>00072 <span class="keyword">private</span>:
<a name="l00074"></a><a class="code" href="classMercator_1_1BandShader.html#6a486c8f96587b320f872db3a1c75e18">00074</a> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#6a486c8f96587b320f872db3a1c75e18" title="The level above which the shader renders.">m_lowThreshold</a>;
<a name="l00076"></a><a class="code" href="classMercator_1_1BandShader.html#4d8980a0aba1931cb421ddfe33286baf">00076</a> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#4d8980a0aba1931cb421ddfe33286baf" title="The level below which the shader renders.">m_highThreshold</a>;
<a name="l00077"></a>00077 <span class="keyword">public</span>:
<a name="l00079"></a><a class="code" href="classMercator_1_1BandShader.html#f4b4253a94f288a5bfdbd746d4df79b5">00079</a> <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classMercator_1_1BandShader.html#f4b4253a94f288a5bfdbd746d4df79b5" title="Key string used when specifying the low threshold parameter.">key_lowThreshold</a>;
<a name="l00081"></a><a class="code" href="classMercator_1_1BandShader.html#8a41503a9384a0e1a41947a1168be0ab">00081</a> <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classMercator_1_1BandShader.html#8a41503a9384a0e1a41947a1168be0ab" title="Key string used when specifying the high threshold parameter.">key_highThreshold</a>;
<a name="l00082"></a>00082
<a name="l00084"></a><a class="code" href="classMercator_1_1BandShader.html#b581d6f1ce596212774350097a98a4a4">00084</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#b581d6f1ce596212774350097a98a4a4" title="Default level above which the shader renders.">default_lowThreshold</a>;
<a name="l00086"></a><a class="code" href="classMercator_1_1BandShader.html#0047fc3357a7500d912033d74d2f048c">00086</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#0047fc3357a7500d912033d74d2f048c" title="Default level below which the shader renders.">default_highThreshold</a>;
<a name="l00087"></a>00087
<a name="l00092"></a>00092 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1BandShader.html#81e75f30baa431f779d3751a28f66ebc" title="Constructor.">BandShader</a>(<span class="keywordtype">float</span> low_threshold = <a class="code" href="classMercator_1_1BandShader.html#b581d6f1ce596212774350097a98a4a4" title="Default level above which the shader renders.">default_lowThreshold</a>,
<a name="l00093"></a>00093 <span class="keywordtype">float</span> high_threshold = <a class="code" href="classMercator_1_1BandShader.html#0047fc3357a7500d912033d74d2f048c" title="Default level below which the shader renders.">default_highThreshold</a>);
<a name="l00097"></a>00097 <span class="keyword">explicit</span> <a class="code" href="classMercator_1_1BandShader.html#81e75f30baa431f779d3751a28f66ebc" title="Constructor.">BandShader</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Shader.html#1e99426c6c90afbb8c54114bb692b861" title="STL map of parameter values for a shader constructor.">Parameters</a> & params);
<a name="l00098"></a>00098 <span class="keyword">virtual</span> ~<a class="code" href="classMercator_1_1BandShader.html" title="Surface shader that defines the surface between two levels.">BandShader</a>();
<a name="l00099"></a>00099
<a name="l00101"></a><a class="code" href="classMercator_1_1BandShader.html#4b38d967a4dae2f504175b4fe15852c4">00101</a> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#4b38d967a4dae2f504175b4fe15852c4" title="Accessor for the level above which the shader renders.">lowThreshold</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classMercator_1_1BandShader.html#6a486c8f96587b320f872db3a1c75e18" title="The level above which the shader renders.">m_lowThreshold</a>; }
<a name="l00103"></a><a class="code" href="classMercator_1_1BandShader.html#503cfad3938637c578a4ecbe1d2c5344">00103</a> <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="classMercator_1_1BandShader.html#503cfad3938637c578a4ecbe1d2c5344" title="Accessor for the level below which the shader renders.">highThreshold</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classMercator_1_1BandShader.html#4d8980a0aba1931cb421ddfe33286baf" title="The level below which the shader renders.">m_highThreshold</a>; }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classMercator_1_1BandShader.html#78d44205f6f171d6672a0bf71e2a8a90" title="Check whether this Shader has any effect on the given Segment.">checkIntersect</a>(<span class="keyword">const</span> <a class="code" href="classMercator_1_1Segment.html" title="Class storing heightfield and other data for a single fixed size square area of terrain...">Segment</a> &) <span class="keyword">const</span>;
<a name="l00106"></a>00106 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classMercator_1_1BandShader.html#d0a99f20de21ad09f2a29cf57a52c311" title="Populate a Surface with data.">shade</a>(<a class="code" href="classMercator_1_1Surface.html" title="Data store for terrain surface data.">Surface</a> &) <span class="keyword">const</span>;
<a name="l00107"></a>00107 };
<a name="l00108"></a>00108
<a name="l00109"></a>00109 } <span class="comment">// namespace Mercator</span>
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="preprocessor">#endif // MERCATOR_FILL_THRESHOLD_SHADER_H</span>
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