2
// Copyright � 1997 - 2001, Paul C. Gregory
4
// Contact: pgregory@aqsis.com
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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\brief Implements the CqNoise class for producing noise.
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\author Paul C. Gregory (pgregory@aqsis.com)
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/* Coherent noise function over 1, 2 or 3 dimensions */
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/* (copyright Ken Perlin)
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* Now it is static hardcode table of random floats to try to have the same
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* behaviour over any platform.
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START_NAMESPACE( Aqsis )
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#define s_curve(t) ( t * t * (3. - 2. * t) )
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#define setup(i,b0,b1,r0,r1)\
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t = vec[i] + NOISE_N;\
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b0 = ((int)t) & NOISE_BM;\
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b1 = (b0+1) & NOISE_BM;\
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//---------------------------------------------------------------------
54
TqInt CqNoise::m_p[ NOISE_B + NOISE_B + 2 ];
55
TqFloat CqNoise::m_g3[ NOISE_B + NOISE_B + 2 ][ 3 ];
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TqFloat CqNoise::m_g2[ NOISE_B + NOISE_B + 2 ][ 2 ];
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TqFloat CqNoise::m_g1[ NOISE_B + NOISE_B + 2 ];
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* table of random numbers
62
static TqFloat randtable[] = {
63
0.80874050111, 0.19330423902, 0.56358531449, 0.00125125889,
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0.89596240120, 0.35029145177, 0.47987304300, 0.58500930815,
65
0.85894344920, 0.17410809656, 0.74660481582, 0.82284005249,
66
0.01498458815, 0.30399487289, 0.51353495895, 0.71050141911,
67
0.16589861751, 0.14731284524, 0.36445204016, 0.09140293588,
68
0.00466933195, 0.11908322398, 0.44569231239, 0.98852504044,
69
0.57118442335, 0.53166295358, 0.37788018433, 0.00891140477,
70
0.66304513688, 0.16623432112, 0.60716574602, 0.60176396985,
71
0.60768456069, 0.05703909421, 0.35212256233, 0.45078890347,
72
0.30195013276, 0.51988280892, 0.80260628071, 0.78331858272,
73
0.92571794794, 0.95590075381, 0.72667622913, 0.87597277749,
74
0.23532822657, 0.46208075198, 0.14233832820, 0.53935361797,
75
0.84365367595, 0.77965636158, 0.20960112308, 0.86223944823,
76
0.39243751335, 0.61149937437, 0.99969481491, 0.99679555651,
77
0.02374340037, 0.84014404736, 0.29728080081, 0.26621295816,
78
0.05621509445, 0.67720572527, 0.09262367626, 0.37586596271,
79
0.27289651173, 0.27588732566, 0.91879024628, 0.00878933073,
80
0.72649311808, 0.83761101108, 0.69118320261, 0.58790856655,
81
0.46845912046, 0.74373607593, 0.20535905026, 0.48493911557,
82
0.10827967162, 0.74443800165, 0.94915616321, 0.45796075320,
83
0.60896633808, 0.73500778222, 0.38523514512, 0.59904782250,
84
0.22510452589, 0.15155491806, 0.36133915220, 0.57240516373,
85
0.98998992889, 0.51710562456, 0.80288094729, 0.42515335551,
86
0.65730765709, 0.16898098697, 0.34556108280, 0.75154881436,
87
0.50480666524, 0.69975890378, 0.06353953673, 0.49189733573,
88
0.90511795404, 0.14157536546, 0.94958342235, 0.14749595630,
89
0.07037568285, 0.42655720695, 0.30304879910, 0.69289223914,
90
0.87725455489, 0.15323343608, 0.68318735313, 0.96661275063,
91
0.17789239174, 0.19135105441, 0.58204901273, 0.82168034913,
92
0.50392162847, 0.15555284280, 0.47526474807, 0.81719412824,
93
0.56874294259, 0.27958006531, 0.40559099094, 0.73201696829,
94
0.47529526658, 0.72191534165, 0.75585192419, 0.68224127934,
95
0.03509628590, 0.83468123417, 0.36780907620, 0.12302011170,
96
0.10467848750, 0.42622150334, 0.66298409986, 0.51701406903,
97
0.34598834193, 0.54954680013, 0.92138431959, 0.94933927427,
98
0.31687368389, 0.84698019349, 0.37498092593, 0.47172460097,
99
0.29779961547, 0.98297067171, 0.27188940092, 0.45609912412,
100
0.76131473739, 0.19598986785, 0.56727805414, 0.73918881802,
101
0.89016388440, 0.50090029603, 0.39765617847, 0.83944212165,
102
0.05050813318, 0.57258827479, 0.99462874233, 0.02746665853,
103
0.62675862911, 0.84304330576, 0.19406720176, 0.53132724998,
104
0.12332529679, 0.84215826899, 0.19785149693, 0.65761284219,
105
0.94106875820, 0.31406598102, 0.74312570574, 0.10992767113,
106
0.73308511612, 0.14026306955, 0.33631397443, 0.28608050783,
107
0.74721518601, 0.60023804437, 0.70799890133, 0.83462019715,
108
0.06100650044, 0.00161748100, 0.14447462386, 0.25272377697,
109
0.11560411390, 0.21057771538, 0.85262611774, 0.80623798334,
110
0.45451216163, 0.11377300333, 0.01425214393, 0.55320902127,
111
0.07388531144, 0.54344309824, 0.68614764855, 0.75222022156,
112
0.29035309915, 0.69621875668, 0.20194097720, 0.43671987060,
113
0.53257850887, 0.57786797693, 0.23242896817, 0.43668935209,
114
0.96304208502, 0.50413525803, 0.16019165624, 0.62868129521,
115
0.33594775231, 0.18994720298, 0.92480239265, 0.69576097903,
116
0.99801629688, 0.45744193854, 0.99517807550, 0.17835016938,
117
0.43772698141, 0.09439374981, 0.62517166662, 0.09750663778,
118
0.29001739555, 0.89461958678, 0.04843287454, 0.93151646474,
119
0.20197149571, 0.41071810053, 0.76906643880, 0.22730185858,
120
0.46635334330, 0.45161290323, 0.60414441359, 0.62807092502,
121
0.82879116184, 0.85479293191, 0.63472396008, 0.59782708213,
122
0.37513351848, 0.56575212867, 0.72090823084, 0.62477492599,
123
0.90508743553, 0.55513168737, 0.73790704062, 0.18427076022,
124
0.69850764489, 0.60472426527, 0.18894009217, 0.24286629841,
125
0.08038575396, 0.49446089053, 0.35129856258, 0.58461256752,
126
0.69112216559, 0.62038026063, 0.61204870754, 0.74074526200,
127
0.86773277993, 0.57603686636, 0.14911343730, 0.80452894681,
128
0.04321420942, 0.72768333995, 0.61470381787, 0.91155735954,
129
0.56920072024, 0.31501205481, 0.97653126621, 0.66777550584,
130
0.86904507584, 0.10855433821, 0.17392498550, 0.30582598346,
131
0.32691427351, 0.15488143559, 0.74431592761, 0.85122226630,
132
0.82000183111, 0.64098025452, 0.07660145878, 0.07934812464,
133
0.29874568926, 0.40897854549, 0.44825586718, 0.54509109775,
134
0.32303842280, 0.15265358440, 0.50120548112, 0.46555986206,
135
0.95907467879, 0.82668538469, 0.31388286996, 0.73799859615,
136
0.94399853511, 0.30005798517, 0.72502822962, 0.87334818567,
137
0.52458265938, 0.78496658223, 0.06573686941, 0.12723166601,
138
0.87563707389, 0.07226783044, 0.95611438337, 0.60963774529,
139
0.50505081332, 0.10480056154, 0.32212286752, 0.65385906552,
140
0.55116428114, 0.91998046815, 0.29029206214, 0.22708822901,
141
0.37913144322, 0.49253822443, 0.11453596606, 0.66280098880,
142
0.38236640522, 0.50926236763, 0.79335917234, 0.49681081576,
143
0.39518417920, 0.60628070925, 0.53215124973, 0.68816187017,
144
0.62306588946, 0.10061952574, 0.70787682730, 0.00589007233,
145
0.49690237129, 0.74733726005, 0.49150059511, 0.86324655904,
146
0.35709707938, 0.55281228065, 0.78536332286, 0.38010803552,
147
0.37424848170, 0.17658009583, 0.63084810938, 0.95571764275,
148
0.61198767052, 0.95171971801, 0.74327829829, 0.13162633137,
149
0.63921018097, 0.05590990936, 0.32984405042, 0.02783288064,
150
0.59688100833, 0.86431470687, 0.84707174902, 0.13162633137,
151
0.12646870327, 0.01467940306, 0.85396893216, 0.72164067507,
152
0.06595049898, 0.21756645405, 0.61714529862, 0.70790734581,
153
0.31940672018, 0.34098330638, 0.62410351878, 0.16891994995,
154
0.80687887204, 0.80239265114, 0.66100039674, 0.36756492813,
155
0.90060121464, 0.79818109684, 0.61110263375, 0.52653584399,
156
0.25370036927, 0.40241706595, 0.63017670217, 0.14481032746,
157
0.42780846583, 0.06616412854, 0.85518967254, 0.13653981140,
158
0.22556230354, 0.54805139317, 0.30228583636, 0.57335123753,
159
0.13470870083, 0.80803857540, 0.11062959685, 0.31134983367,
160
0.78963591418, 0.89522995697, 0.78810998871, 0.28424939726,
161
0.85665456099, 0.36112552263, 0.61522263253, 0.74379711295,
162
0.24954985199, 0.22943815424, 0.86358226264, 0.22849208045,
163
0.08142338328, 0.05380413221, 0.98483230079, 0.54240546892,
164
0.25879696036, 0.09466841639, 0.42680135502, 0.52467421491,
165
0.12509537034, 0.14654988250, 0.23276467177, 0.89153721732,
166
0.05871761223, 0.04709006012, 0.08011108737, 0.93163853877,
167
0.43278298288, 0.39860225227, 0.91470076601, 0.33640552995,
168
0.84209723197, 0.53422650838, 0.83718375195, 0.94616534928,
169
0.00433362835, 0.25916318247, 0.39768669698, 0.69353312784,
170
0.24109622486, 0.39869380779, 0.95480208747, 0.52558977020,
171
0.94528031251, 0.68401135289, 0.25513473922, 0.58555864132,
172
0.94097720267, 0.00717184973, 0.89022492141, 0.43549913022,
173
0.14242988372, 0.57667775506, 0.78615680410, 0.60155034028,
174
0.41792046876, 0.00427259133, 0.38300729392, 0.22232734153,
175
0.06485183264, 0.85509811701, 0.65993224891, 0.08224738304,
176
0.80269783624, 0.69148838771, 0.66206854457, 0.81105990783,
177
0.68950468459, 0.14276558733, 0.68562883389, 0.53013702811,
178
0.86867885372, 0.03106784265, 0.77773369549, 0.72789696951,
179
0.55198828089, 0.08545182653, 0.70656453139, 0.64452040162,
180
0.14517654958, 0.27497177038, 0.05877864925, 0.94790490432,
181
0.92248298593, 0.29224524674, 0.61998352000, 0.98178044984,
182
0.15591906491, 0.21863460189, 0.69454023865, 0.36753440962,
183
0.10641804254, 0.90227973266, 0.52143925291, 0.24054689169,
184
0.78209784234, 0.08011108737, 0.44172490616, 0.90264595477,
185
0.87038789026, 0.77587206641, 0.97439497055, 0.17178868984,
186
0.75063325907, 0.00375377667, 0.45661793878, 0.21063875240,
187
0.99261452071, 0.31113620411, 0.40470595416, 0.11404766991,
188
0.24768822291, 0.18927579577, 0.25208288827, 0.03857539598,
189
0.93908505509, 0.88537247841, 0.62031922361, 0.15350810266,
190
0.65675832392, 0.64555803095, 0.77965636158, 0.19565416425,
191
0.66417432173, 0.92129276406, 0.45545823542, 0.90914639729,
192
0.42204046754, 0.56953642384, 0.63634144108, 0.15076143681,
193
0.53645435957, 0.57856990265, 0.54057435835, 0.94302194281,
194
0.03662221137, 0.35026093326, 0.39695425275, 0.25528733177,
195
0.38941618091, 0.07028412732, 0.19650868252, 0.79525131993,
196
0.15588854640, 0.19766838588, 0.07092501602, 0.59074678793,
197
0.69734794153, 0.60429700613, 0.45432905057, 0.64433729057,
198
0.83571886349, 0.39652699362, 0.68446913053, 0.44129764702,
199
0.87600329600, 0.94946134831, 0.19959105197, 0.59221167638,
200
0.89571825312, 0.18530838954, 0.98745689261, 0.39170506912,
201
0.70851771599, 0.62733848079, 0.44206060976, 0.57444990387,
202
0.40763573107, 0.26020081179, 0.28556169317, 0.04962309641,
203
0.89605395672, 0.72844630268, 0.71019623402, 0.89532151250,
204
0.30860316782, 0.90386669515, 0.39741203040, 0.39356669820,
205
0.73369548631, 0.35355693228, 0.57057405316, 0.38810388501,
206
0.13931699576, 0.73943296609, 0.73638111515, 0.74535355693,
207
0.91113010041, 0.68044068728, 0.27259132664, 0.20017090365,
208
0.90743736076, 0.10937833796, 0.51765495773, 0.36783959471,
209
0.43852046266, 0.65483565783, 0.51796014283, 0.20307016205,
210
0.07577745903, 0.07956175420, 0.09042634358, 0.68764305551,
211
0.69728690451, 0.30722983489, 0.35508285775, 0.02780236213,
212
0.67574083682, 0.06784264657, 0.39484847560, 0.14267403180,
213
0.61571092868, 0.69402142399, 0.19870601520, 0.72493667409,
214
0.54536576434, 0.09830011902, 0.54399243141, 0.65489669485,
215
0.96996978668, 0.46403393658, 0.97457808161, 0.04962309641,
216
0.69280068361, 0.67992187262, 0.53096102786, 0.72786645100,
217
0.80977813044, 0.04995880001, 0.38862269967, 0.37211218604,
218
0.78447828608, 0.31055635243, 0.06082338939, 0.16956083865,
219
0.00915555284, 0.48466444899, 0.32190923795, 0.21246986297,
220
0.75853755303, 0.60594500565, 0.50785851619, 0.43986327708,
221
0.94232001709, 0.84264656514, 0.34980315561, 0.40107425153,
222
0.56285287027, 0.05346842860, 0.99728385266, 0.62331003754,
223
0.28421887875, 0.30640583514, 0.38676107059, 0.86355174413,
224
0.01861629078, 0.39118625446, 0.61256752220, 0.02670369579,
225
0.93676564837, 0.85793633839, 0.45570238350, 0.03103732414,
226
0.80837427900, 0.61159092990, 0.72728659932, 0.40189825129,
227
0.07901242103, 0.59501937925, 0.58259834590, 0.87542344432,
228
0.58943449202, 0.59062471389, 0.46220282601, 0.79317606128,
229
0.34357737968, 0.67275002289, 0.81606494339, 0.56920072024,
230
0.23209326456, 0.34156315806, 0.26731162450, 0.01022370067,
231
0.11685537278, 0.86986907559, 0.37174596393, 0.77101962340,
232
0.18301950133, 0.89394817957, 0.62892544328, 0.72557756279,
233
0.96520889920, 0.78008362072, 0.90200506607, 0.53556932279,
234
0.95339823603, 0.79741813410, 0.90154728843, 0.19736320078,
235
0.18546098209, 0.62871181372, 0.89034699545, 0.84881130406,
236
0.73220007935, 0.25064851833, 0.26499221778, 0.61693166906,
237
0.48094119083, 0.71388897366, 0.17093417158, 0.78810998871,
238
0.12463759270, 0.85534226508, 0.80654316843, 0.08148442030,
239
0.76204718162, 0.47297585986, 0.57332071902, 0.30747398297,
240
0.01535081027, 0.99502548296, 0.72777489547, 0.19186986908,
241
0.07211523789, 0.17413861507, 0.69164098025, 0.64763328959,
242
0.55665761284, 0.83892330699, 0.67662587359, 0.27497177038,
243
0.63823358867, 0.23252052370, 0.77950376904, 0.37122714927,
244
0.28174687948, 0.97103793451, 0.20459608753, 0.23166600543,
245
0.04696798608, 0.15182958464, 0.76921903134, 0.02288888211,
246
0.34324167608, 0.64387951292, 0.34858241523, 0.00924710837,
247
0.54518265328, 0.09067049165, 0.41651661733, 0.41456343272,
248
0.87624744407, 0.65752128666, 0.33799249245, 0.69927060762,
249
0.46577349162, 0.05398724326, 0.57002471999, 0.53547776727,
250
0.48658711509, 0.86333811457, 0.42680135502, 0.25998718223,
251
0.77846613971, 0.70940275277, 0.56581316568, 0.08743552965,
252
0.86437574389, 0.29300820948, 0.85055085910, 0.86422315134,
253
0.76561784722, 0.82863856929, 0.74684896390, 0.64491714225,
254
0.52195806757, 0.91253395184, 0.90832239753, 0.87191381573,
255
0.82305368206, 0.35401470992, 0.10763878292, 0.44016846217,
256
0.65746024964, 0.00085451827, 0.16983550523, 0.42771691031,
257
0.38566240425, 0.08981597339, 0.06372264779, 0.77355265969,
258
0.14285714286, 0.15408795434, 0.80761131626, 0.68388927885,
259
0.97842341380, 0.01855525376, 0.34614093448, 0.04846339305,
260
0.63747062593, 0.91415143284, 0.05365153966, 0.64763328959,
261
0.39194921720, 0.24259163182, 0.02105777154, 0.43171483505,
262
0.82604449599, 0.02282784509, 0.78188421278, 0.65401165807,
263
0.98348948637, 0.55040131840, 0.63426618244, 0.13843195898,
264
0.78215887936, 0.30069887387, 0.21478926969, 0.46342356639,
265
0.10251167333, 0.60802026429, 0.48060548723, 0.34253975036,
266
0.45640430921, 0.15088351085, 0.75582140568, 0.98443556017,
267
0.64165166173, 0.77550584429, 0.99874874111, 0.71163060396,
268
0.28980376598, 0.68816187017, 0.94610431227, 0.62120426038,
269
0.71236304819, 0.54823450423, 0.29038361766, 0.56715598010,
270
0.95205542161, 0.49262977996, 0.54667806024, 0.24643696402,
271
0.44575334941, 0.62337107456, 0.76516006958, 0.66982024598,
272
0.20462660604, 0.98892178106, 0.74553666799, 0.79876094852,
273
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0.18570513016, 0.83666493728, 0.48258919034, 0.55760368664,
500
0.22177800836, 0.04062013611, 0.10925626392, 0.00970488601,
501
0.44273201697, 0.70760216071, 0.41029084140, 0.25595873898,
502
0.80663472396, 0.85677663503, 0.54405346843, 0.13306070132,
503
0.14322336497, 0.31336405530, 0.92382580035, 0.21826837977,
504
0.53724784082, 0.95556505020, 0.01028473769, 0.60686056093,
505
0.88570818201, 0.23706778161, 0.01239051485, 0.38688314463,
506
0.53520310068, 0.01654103214, 0.15259254738, 0.59245582446,
507
0.40556047243, 0.22446363720, 0.65272988067, 0.91671498764,
508
0.50611896115, 0.39957884457, 0.09707937864, 0.96581926939,
509
0.25077059236, 0.62541581469, 0.32840968047, 0.33530686361,
510
0.47807245094, 0.89867854854, 0.53352458266, 0.28995635853,
511
0.58275093844, 0.46034119694, 0.67458113346, 0.32816553240,
512
0.66472365490, 0.12097537156, 0.92229987487, 0.41276284066,
513
0.10202337718, 0.11157567064, 0.24738303781, 0.14868617817,
514
0.45374919889, 0.49073763237, 0.82644123661, 0.68950468459,
515
0.09921567431, 0.63991210669, 0.41850032044, 0.65343180639,
516
0.52003540147, 0.87795648061, 0.36863307596, 0.83059175390,
517
0.63060396130, 0.72569963683, 0.39469588305, 0.96227912229,
518
0.06393627735, 0.85256508072, 0.81340983306, 0.37412640767,
519
0.81896420179, 0.23560289315, 0.36237678152, 0.74358348338,
520
0.17471846675, 0.56321909238, 0.27393414106, 0.78371532334,
521
0.27942747276, 0.41380046999, 0.75710318308, 0.12424085208,
522
0.31861323893, 0.24124881741, 0.54420606098, 0.17096469008,
523
0.67024750511, 0.69841608936, 0.65804010132, 0.22507400739,
524
0.95223853267, 0.32950834681, 0.05603198340, 0.64333017975,
525
0.36854152043, 0.16296884060, 0.30762657552, 0.32068849757,
526
0.26081118198, 0.23621326334, 0.96111941893, 0.27643665883,
527
0.27100436415, 0.58281197546, 0.75603503525, 0.62483596301,
528
0.02157658620, 0.71413312174, 0.33790093692, 0.71214941862,
529
0.71987060152, 0.12637714774, 0.63069551683, 0.70055238502,
530
0.59193700980, 0.86413159581, 0.52394177068, 0.38090151677,
531
0.55348368786, 0.67177343059, 0.03079317606, 0.49516281625,
532
0.02264473403, 0.76427503281, 0.57258827479, 0.34958952605,
533
0.28223517563, 0.74806970428, 0.54695272683, 0.00064088870,
534
0.29645680105, 0.72380748924, 0.83523056734, 0.79403057955,
535
0.38938566240, 0.10177922910, 0.40559099094, 0.53865169225,
536
0.69093905454, 0.16183965575, 0.66820276498, 0.09671315653,
537
0.75658436842, 0.88824121830, 0.73851741081, 0.67076631977,
538
0.26712851344, 0.11145359661, 0.26493118076, 0.56950590533,
539
0.21491134373, 0.48789941099, 0.97747734001, 0.73345133824,
540
0.48261970885, 0.34852137822, 0.61290322581, 0.80120242927,
541
0.22061830500, 0.94799645985, 0.37366863002, 0.99850459304,
542
0.92989898373, 0.14554277169, 0.57570116276, 0.63026825770,
543
0.65575121311, 0.04864650410, 0.64232306894, 0.45793023469,
544
0.19959105197, 0.65074617756, 0.09997863704, 0.74239326151,
545
0.75411236915, 0.99453718680, 0.73213904233, 0.23435163427,
546
0.86886196478, 0.89178136540, 0.54765465255, 0.89330729087,
547
0.15192114017, 0.73107089450, 0.71990112003, 0.61595507675,
548
0.61449018830, 0.40473647267, 0.15277565844, 0.75621814631,
549
0.06372264779, 0.88604388562, 0.82998138371, 0.71678823206,
550
0.45136875515, 0.48808252205, 0.60362559893, 0.39475692007,
551
0.58305612354, 0.33573412275, 0.57878353221, 0.76180303354,
552
0.09564500870, 0.08145390179, 0.74974822230, 0.36033204138,
553
0.10818811609, 0.39667958617, 0.04446546831, 0.99707022309,
554
0.45301675466, 0.26972258675, 0.43391216773, 0.41496017335,
555
0.89309366131, 0.64174321726, 0.26132999664, 0.22498245186,
556
0.23206274606, 0.41169469283, 0.44932401502, 0.87896359142,
557
0.72304452651, 0.34171575060, 0.73937192907, 0.96441541795,
558
0.68248542741, 0.89422284616, 0.62144840846, 0.60338145085,
559
0.71550645466, 0.53166295358, 0.10879848628, 0.23563341166,
560
0.45844904935, 0.51091036714, 0.01510666219, 0.56794946135,
561
0.24582659383, 0.70238349559, 0.88964506973, 0.97085482345,
562
0.60676900540, 0.46629230628, 0.26667073580, 0.10354930265,
563
0.99816888943, 0.11664174322, 0.38618121891, 0.04907376324,
564
0.68025757622, 0.00439466536, 0.04083376568, 0.73992126225,
565
0.14108706931, 0.75087740715, 0.70662556841, 0.95641956847,
566
0.97601245155, 0.66298409986, 0.61275063326, 0.67827387310,
567
0.62849818415, 0.86132389294, 0.90740684225, 0.07110812708,
568
0.89861751152, 0.15219580676, 0.57515182958, 0.88900418104,
569
0.62529374065, 0.17548142949, 0.26294747765, 0.57390057070,
570
0.44853053377, 0.85863826411, 0.67027802362, 0.83431501205,
571
0.05822931608, 0.70876186407, 0.66011535997, 0.98297067171,
572
0.83535264138, 0.97415082247, 0.74691000092, 0.81597338786,
573
0.29178746910, 0.20551164281, 0.11764885403, 0.31412701804,
574
0.21591845454, 0.24976348155, 0.84249397259, 0.94778283029,
578
static TqInt rp = 0, erp = 0;;
580
static TqUint randinx()
584
result = ( TqUint ) ( randtable[ rp ] * 1664525L ) + 1013904223L;
595
static void normalize2( TqFloat v[ 2 ] )
599
s = sqrt( v[ 0 ] * v[ 0 ] + v[ 1 ] * v[ 1 ] );
604
static void normalize3( TqFloat v[ 3 ] )
608
s = sqrt( v[ 0 ] * v[ 0 ] + v[ 1 ] * v[ 1 ] + v[ 2 ] * v[ 2 ] );
614
//---------------------------------------------------------------------
618
TqFloat CqNoise::FGNoise1( TqFloat x )
621
TqFloat rx0, rx1, sx, t, u, v, vec[ 1 ];
625
setup( 0, bx0, bx1, rx0, rx1 );
628
u = rx0 * m_g1[ m_p[ bx0 ] ];
629
v = rx1 * m_g1[ m_p[ bx1 ] ];
631
return ( LERP( sx, u, v ) );
635
//---------------------------------------------------------------------
639
TqFloat CqNoise::FGNoise2( TqFloat x, TqFloat y )
641
TqInt bx0, bx1, by0, by1, b00, b10, b01, b11;
642
TqFloat rx0, rx1, ry0, ry1, *q, sx, sy, a, b, t, u, v, vec[ 2 ];
648
setup( 0, bx0, bx1, rx0, rx1 );
649
setup( 1, by0, by1, ry0, ry1 );
654
b00 = m_p[ i + by0 ];
655
b10 = m_p[ j + by0 ];
656
b01 = m_p[ i + by1 ];
657
b11 = m_p[ j + by1 ];
662
#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
664
q = m_g2[ b00 ]; u = at2( rx0, ry0 );
665
q = m_g2[ b10 ]; v = at2( rx1, ry0 );
666
a = LERP( sx, u, v );
668
q = m_g2[ b01 ]; u = at2( rx0, ry1 );
669
q = m_g2[ b11 ]; v = at2( rx1, ry1 );
670
b = LERP( sx, u, v );
672
return ( LERP( sy, a, b ) );
676
//---------------------------------------------------------------------
680
TqFloat CqNoise::FGNoise3( TqFloat x, TqFloat y, TqFloat z )
682
TqInt bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
683
TqFloat rx0, rx1, ry0, ry1, rz0, rz1, *q, sy, sz, a, b, c, d, t, u, v, vec[ 3 ];
690
setup( 0, bx0, bx1, rx0, rx1 );
691
setup( 1, by0, by1, ry0, ry1 );
692
setup( 2, bz0, bz1, rz0, rz1 );
697
b00 = m_p[ i + by0 ];
698
b10 = m_p[ j + by0 ];
699
b01 = m_p[ i + by1 ];
700
b11 = m_p[ j + by1 ];
706
#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
708
q = m_g3[ b00 + bz0 ]; u = at3( rx0, ry0, rz0 );
709
q = m_g3[ b10 + bz0 ]; v = at3( rx1, ry0, rz0 );
712
q = m_g3[ b01 + bz0 ]; u = at3( rx0, ry1, rz0 );
713
q = m_g3[ b11 + bz0 ]; v = at3( rx1, ry1, rz0 );
716
c = LERP( sy, a, b );
718
q = m_g3[ b00 + bz1 ]; u = at3( rx0, ry0, rz1 );
719
q = m_g3[ b10 + bz1 ]; v = at3( rx1, ry0, rz1 );
722
q = m_g3[ b01 + bz1 ]; u = at3( rx0, ry1, rz1 );
723
q = m_g3[ b11 + bz1 ]; v = at3( rx1, ry1, rz1 );
726
d = LERP( sy, a, b );
728
return ( LERP( sz, c, d ) );
732
//---------------------------------------------------------------------
733
/** Initialise the random permutation tables for noise generation.
734
* \param seed Random seed to use; seed is pass to CqRandom since
735
* it is mandatory to init the other Random generator.
736
* This method is called only once.
739
void CqNoise::init( TqInt seed )
741
TqInt i, j, k, result;
747
m_random.Reseed( seed );
748
result = sizeof( randtable ) / sizeof( float );
751
for ( i = 0; i < NOISE_B; i++ )
754
m_g1[ i ] = static_cast<TqFloat>( ( static_cast<TqInt>
755
( randinx() ) % ( NOISE_B + NOISE_B ) ) - NOISE_B ) / NOISE_B;
756
for ( j = 0; j < 2; j++ )
757
m_g2[ i ][ j ] = static_cast<TqFloat>( (
758
static_cast<TqInt>( randinx() ) % ( NOISE_B + NOISE_B ) ) - NOISE_B ) / NOISE_B;
759
normalize2( m_g2[ i ] );
761
for ( j = 0; j < 3; j++ )
762
m_g3[ i ][ j ] = static_cast<TqFloat>( (
763
static_cast<TqInt>( randinx() ) % ( NOISE_B + NOISE_B ) ) - NOISE_B ) / NOISE_B;
764
normalize3( m_g3[ i ] );
770
m_p[ i ] = m_p[ j = static_cast<TqInt>( randinx() ) % NOISE_B ];
774
for ( i = 0; i < NOISE_B + 2; i++ )
776
m_p[ NOISE_B + i ] = m_p[ i ];
777
m_g1[ NOISE_B + i ] = m_g1[ i ];
778
for ( j = 0; j < 2; j++ )
779
m_g2[ NOISE_B + i ][ j ] = m_g2[ i ][ j ];
780
for ( j = 0; j < 3; j++ )
781
m_g3[ NOISE_B + i ][ j ] = m_g3[ i ][ j ];
788
END_NAMESPACE( Aqsis )
789
//---------------------------------------------------------------------
added
removed
libaqsistypes/noise.cpp
