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A portable, open-source, coherent noise-generating library for C++
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<h1>noisegen.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">// noisegen.h</span>
00002 <span class="comment">//</span>
00003 <span class="comment">// Copyright (C) 2003, 2004 Jason Bevins</span>
00004 <span class="comment">//</span>
00005 <span class="comment">// This library is free software; you can redistribute it and/or modify it</span>
00006 <span class="comment">// under the terms of the GNU Lesser General Public License as published by</span>
00007 <span class="comment">// the Free Software Foundation; either version 2.1 of the License, or (at</span>
00008 <span class="comment">// your option) any later version.</span>
00009 <span class="comment">//</span>
00010 <span class="comment">// This library is distributed in the hope that it will be useful, but WITHOUT</span>
00011 <span class="comment">// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
00012 <span class="comment">// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public</span>
00013 <span class="comment">// License (COPYING.txt) for more details.</span>
00014 <span class="comment">//</span>
00015 <span class="comment">// You should have received a copy of the GNU Lesser General Public License</span>
00016 <span class="comment">// along with this library; if not, write to the Free Software Foundation,</span>
00017 <span class="comment">// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
00018 <span class="comment">//</span>
00019 <span class="comment">// The developer's email is jlbezigvins@gmzigail.com (for great email, take</span>
00020 <span class="comment">// off every 'zig'.)</span>
00021 <span class="comment">//</span>
00022
00023 <span class="preprocessor">#ifndef NOISE_NOISEGEN_H</span>
00024 <span class="preprocessor"></span><span class="preprocessor">#define NOISE_NOISEGEN_H</span>
00025 <span class="preprocessor"></span>
00026 <span class="preprocessor">#include <math.h></span>
00027 <span class="preprocessor">#include "basictypes.h"</span>
00028
00029 <span class="keyword">namespace </span>noise
00030 {
00031
00034
<a name="l00036"></a><a class="code" href="group__libnoise.html#ga26">00036</a> <span class="keyword">enum</span> NoiseQuality
00037 {
00038
00044 QUALITY_FAST = 0,
00045
00051 QUALITY_STD = 1,
00052
00058 QUALITY_BEST = 2
00059
00060 };
00061
00077 <span class="keywordtype">double</span> <a class="code" href="group__libnoise.html#ga20">GradientCoherentNoise3D</a> (<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> z, <span class="keywordtype">int</span> seed = 0,
00078 NoiseQuality noiseQuality = QUALITY_STD);
00079
00121 <span class="keywordtype">double</span> <a class="code" href="group__libnoise.html#ga21">GradientNoise3D</a> (<span class="keywordtype">double</span> fx, <span class="keywordtype">double</span> fy, <span class="keywordtype">double</span> fz, <span class="keywordtype">int</span> ix, <span class="keywordtype">int</span> iy,
00122 <span class="keywordtype">int</span> iz, <span class="keywordtype">int</span> seed = 0);
00123
00139 <span class="keywordtype">int</span> <a class="code" href="group__libnoise.html#ga22">IntValueNoise3D</a> (<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> z, <span class="keywordtype">int</span> seed = 0);
00140
<a name="l00158"></a><a class="code" href="group__libnoise.html#ga23">00158</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="group__libnoise.html#ga23">MakeInt32Range</a> (<span class="keywordtype">double</span> n)
00159 {
00160 <span class="keywordflow">if</span> (n >= 1073741824.0) {
00161 <span class="keywordflow">return</span> (2.0 * fmod (n, 1073741824.0)) - 1073741824.0;
00162 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (n <= -1073741824.0) {
00163 <span class="keywordflow">return</span> (2.0 * fmod (n, 1073741824.0)) + 1073741824.0;
00164 } <span class="keywordflow">else</span> {
00165 <span class="keywordflow">return</span> n;
00166 }
00167 }
00168
00184 <span class="keywordtype">double</span> <a class="code" href="group__libnoise.html#ga24">ValueCoherentNoise3D</a> (<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> z, <span class="keywordtype">int</span> seed = 0,
00185 NoiseQuality noiseQuality = QUALITY_STD);
00186
00202 <span class="keywordtype">double</span> <a class="code" href="group__libnoise.html#ga25">ValueNoise3D</a> (<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> z, <span class="keywordtype">int</span> seed = 0);
00203
00205
00206 }
00207
00208 <span class="preprocessor">#endif</span>
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