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<title>pbrt: wrinkled.cpp Source File</title>
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<h1>wrinkled.cpp</h1><a href="wrinkled_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> pbrt source code Copyright(c) 1998-2007 Matt Pharr and Greg Humphreys.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> This file is part of pbrt.</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> pbrt is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00010"></a>00010 <span class="comment"> (at your option) any later version. Note that the text contents of</span>
<a name="l00011"></a>00011 <span class="comment"> the book "Physically Based Rendering" are *not* licensed under the</span>
<a name="l00012"></a>00012 <span class="comment"> GNU GPL.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> pbrt is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00017"></a>00017 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00020"></a>00020 <span class="comment"> along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
<a name="l00021"></a>00021 <span class="comment"></span>
<a name="l00022"></a>00022 <span class="comment"> */</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// wrinkled.cpp*</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="pbrt_8h.html">pbrt.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="texture_8h.html">texture.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="paramset_8h.html">paramset.h</a>"</span>
<a name="l00028"></a>00028 <span class="comment">// WrinkledTexture Declarations</span>
<a name="l00029"></a><a class="code" href="classWrinkledTexture.html">00029</a> <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span><a class="code" href="classWrinkledTexture.html">WrinkledTexture</a> : <span class="keyword">public</span> <a class="code" href="classTexture.html">Texture</a><T> {
<a name="l00030"></a>00030 <span class="keyword">public</span>:
<a name="l00031"></a>00031 <span class="comment">// WrinkledTexture Public Methods</span>
<a name="l00032"></a><a class="code" href="classWrinkledTexture.html#90b1486e83b1cae8593ef1d9756a8919">00032</a> <a class="code" href="classWrinkledTexture.html#90b1486e83b1cae8593ef1d9756a8919">~WrinkledTexture</a>() {
<a name="l00033"></a>00033 <span class="keyword">delete</span> <a class="code" href="classWrinkledTexture.html#5b6fb4abbb9fc5bc45ca2fdfd9d4d112">mapping</a>;
<a name="l00034"></a>00034 }
<a name="l00035"></a><a class="code" href="classWrinkledTexture.html#72ad9a00e46df1c5dd26c6d140461810">00035</a> <a class="code" href="classWrinkledTexture.html#72ad9a00e46df1c5dd26c6d140461810">WrinkledTexture</a>(<span class="keywordtype">int</span> oct, <span class="keywordtype">float</span> roughness, <a class="code" href="classTextureMapping3D.html">TextureMapping3D</a> *map) {
<a name="l00036"></a>00036 <a class="code" href="classWrinkledTexture.html#d4079e177ec4628605291e26cc9d4339">omega</a> = roughness;
<a name="l00037"></a>00037 <a class="code" href="classWrinkledTexture.html#2466d45b8c5f027ea30b0a7c02529769">octaves</a> = oct;
<a name="l00038"></a>00038 <a class="code" href="classWrinkledTexture.html#5b6fb4abbb9fc5bc45ca2fdfd9d4d112">mapping</a> = map;
<a name="l00039"></a>00039 }
<a name="l00040"></a><a class="code" href="classWrinkledTexture.html#28633ade657cea384cc7d4fae8ab1cf8">00040</a> T <a class="code" href="classWrinkledTexture.html#28633ade657cea384cc7d4fae8ab1cf8">Evaluate</a>(<span class="keyword">const</span> <a class="code" href="structDifferentialGeometry.html">DifferentialGeometry</a> &dg)<span class="keyword"> const </span>{
<a name="l00041"></a>00041 <a class="code" href="classVector.html">Vector</a> dpdx, dpdy;
<a name="l00042"></a>00042 <a class="code" href="classPoint.html">Point</a> P = <a class="code" href="classWrinkledTexture.html#5b6fb4abbb9fc5bc45ca2fdfd9d4d112">mapping</a>-><a class="code" href="classTextureMapping3D.html#93dbc1e5be5a60569c66562ce65c9713">Map</a>(dg, &dpdx, &dpdy);
<a name="l00043"></a>00043 <span class="keywordflow">return</span> <a class="code" href="pbrt_8h.html#93b43e3085d81cd42b8f75634244c929">Turbulence</a>(P, dpdx, dpdy, <a class="code" href="classWrinkledTexture.html#d4079e177ec4628605291e26cc9d4339">omega</a>, <a class="code" href="classWrinkledTexture.html#2466d45b8c5f027ea30b0a7c02529769">octaves</a>);
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 <span class="keyword">private</span>:
<a name="l00046"></a>00046 <span class="comment">// WrinkledTexture Private Data</span>
<a name="l00047"></a><a class="code" href="classWrinkledTexture.html#2466d45b8c5f027ea30b0a7c02529769">00047</a> <span class="keywordtype">int</span> <a class="code" href="classWrinkledTexture.html#2466d45b8c5f027ea30b0a7c02529769">octaves</a>;
<a name="l00048"></a><a class="code" href="classWrinkledTexture.html#d4079e177ec4628605291e26cc9d4339">00048</a> <span class="keywordtype">float</span> <a class="code" href="classWrinkledTexture.html#d4079e177ec4628605291e26cc9d4339">omega</a>;
<a name="l00049"></a><a class="code" href="classWrinkledTexture.html#5b6fb4abbb9fc5bc45ca2fdfd9d4d112">00049</a> <a class="code" href="classTextureMapping3D.html">TextureMapping3D</a> *<a class="code" href="classWrinkledTexture.html#5b6fb4abbb9fc5bc45ca2fdfd9d4d112">mapping</a>;
<a name="l00050"></a>00050 };
<a name="l00051"></a>00051 <span class="comment">// WrinkledTexture Method Definitions</span>
<a name="l00052"></a><a class="code" href="wrinkled_8cpp.html#a327196792a520cf6474d6d070066738">00052</a> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="pbrt_8h.html#808e08638be3cba36e36759e5b150de0">DLLEXPORT</a> <a class="code" href="classTexture.html">Texture<float></a> * <a class="code" href="bilerp_8cpp.html#a327196792a520cf6474d6d070066738">CreateFloatTexture</a>(<span class="keyword">const</span> <a class="code" href="classTransform.html">Transform</a> &tex2world,
<a name="l00053"></a>00053 <span class="keyword">const</span> <a class="code" href="classTextureParams.html">TextureParams</a> &tp) {
<a name="l00054"></a>00054 <span class="comment">// Initialize 3D texture mapping _map_ from _tp_</span>
<a name="l00055"></a>00055 <a class="code" href="classTextureMapping3D.html">TextureMapping3D</a> *map = <span class="keyword">new</span> <a class="code" href="classIdentityMapping3D.html">IdentityMapping3D</a>(tex2world);
<a name="l00056"></a>00056 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classWrinkledTexture.html">WrinkledTexture<float></a>(tp.<a class="code" href="classTextureParams.html#ca5ac737691fa5765644683fd147acb8">FindInt</a>(<span class="stringliteral">"octaves"</span>, 8),
<a name="l00057"></a>00057 tp.<a class="code" href="classTextureParams.html#515fcaebd83191597efb444595738411">FindFloat</a>(<span class="stringliteral">"roughness"</span>, .5f), map);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059
<a name="l00060"></a><a class="code" href="wrinkled_8cpp.html#310da60fe3129572e26e896019bb4f7f">00060</a> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <a class="code" href="pbrt_8h.html#808e08638be3cba36e36759e5b150de0">DLLEXPORT</a> <a class="code" href="classTexture.html">Texture<Spectrum></a> * <a class="code" href="bilerp_8cpp.html#310da60fe3129572e26e896019bb4f7f">CreateSpectrumTexture</a>(<span class="keyword">const</span> <a class="code" href="classTransform.html">Transform</a> &tex2world,
<a name="l00061"></a>00061 <span class="keyword">const</span> <a class="code" href="classTextureParams.html">TextureParams</a> &tp) {
<a name="l00062"></a>00062 <span class="comment">// Initialize 3D texture mapping _map_ from _tp_</span>
<a name="l00063"></a>00063 <a class="code" href="classTextureMapping3D.html">TextureMapping3D</a> *map = <span class="keyword">new</span> <a class="code" href="classIdentityMapping3D.html">IdentityMapping3D</a>(tex2world);
<a name="l00064"></a>00064 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classWrinkledTexture.html">WrinkledTexture<Spectrum></a>(tp.<a class="code" href="classTextureParams.html#ca5ac737691fa5765644683fd147acb8">FindInt</a>(<span class="stringliteral">"octaves"</span>, 8),
<a name="l00065"></a>00065 tp.<a class="code" href="classTextureParams.html#515fcaebd83191597efb444595738411">FindFloat</a>(<span class="stringliteral">"roughness"</span>, .5f), map);
<a name="l00066"></a>00066 }
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