MarchingCubes.js 34 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059
  1. /**
  2. * @author alteredq / http://alteredqualia.com/
  3. *
  4. * Port of greggman's ThreeD version of marching cubes to Three.js
  5. * http://webglsamples.googlecode.com/hg/blob/blob.html
  6. */
  7. THREE.MarchingCubes = function ( resolution, material, enableUvs, enableColors ) {
  8. THREE.ImmediateRenderObject.call( this );
  9. this.material = material;
  10. this.enableUvs = enableUvs !== undefined ? enableUvs : false;
  11. this.enableColors = enableColors !== undefined ? enableColors : false;
  12. // functions have to be object properties
  13. // prototype functions kill performance
  14. // (tested and it was 4x slower !!!)
  15. this.init = function ( resolution ) {
  16. this.resolution = resolution;
  17. // parameters
  18. this.isolation = 80.0;
  19. // size of field, 32 is pushing it in Javascript :)
  20. this.size = resolution;
  21. this.size2 = this.size * this.size;
  22. this.size3 = this.size2 * this.size;
  23. this.halfsize = this.size / 2.0;
  24. // deltas
  25. this.delta = 2.0 / this.size;
  26. this.yd = this.size;
  27. this.zd = this.size2;
  28. this.field = new Float32Array( this.size3 );
  29. this.normal_cache = new Float32Array( this.size3 * 3 );
  30. // temp buffers used in polygonize
  31. this.vlist = new Float32Array( 12 * 3 );
  32. this.nlist = new Float32Array( 12 * 3 );
  33. // immediate render mode simulator
  34. this.maxCount = 4096; // TODO: find the fastest size for this buffer
  35. this.count = 0;
  36. this.hasPositions = false;
  37. this.hasNormals = false;
  38. this.hasColors = false;
  39. this.hasUvs = false;
  40. this.positionArray = new Float32Array( this.maxCount * 3 );
  41. this.normalArray = new Float32Array( this.maxCount * 3 );
  42. if ( this.enableUvs ) {
  43. this.uvArray = new Float32Array( this.maxCount * 2 );
  44. }
  45. if ( this.enableColors ) {
  46. this.colorArray = new Float32Array( this.maxCount * 3 );
  47. }
  48. };
  49. ///////////////////////
  50. // Polygonization
  51. ///////////////////////
  52. this.lerp = function( a, b, t ) {
  53. return a + ( b - a ) * t;
  54. };
  55. this.VIntX = function( q, pout, nout, offset, isol, x, y, z, valp1, valp2 ) {
  56. var mu = ( isol - valp1 ) / ( valp2 - valp1 ),
  57. nc = this.normal_cache;
  58. pout[ offset ] = x + mu * this.delta;
  59. pout[ offset + 1 ] = y;
  60. pout[ offset + 2 ] = z;
  61. nout[ offset ] = this.lerp( nc[ q ], nc[ q + 3 ], mu );
  62. nout[ offset + 1 ] = this.lerp( nc[ q + 1 ], nc[ q + 4 ], mu );
  63. nout[ offset + 2 ] = this.lerp( nc[ q + 2 ], nc[ q + 5 ], mu );
  64. };
  65. this.VIntY = function( q, pout, nout, offset, isol, x, y, z, valp1, valp2 ) {
  66. var mu = ( isol - valp1 ) / ( valp2 - valp1 ),
  67. nc = this.normal_cache;
  68. pout[ offset ] = x;
  69. pout[ offset + 1 ] = y + mu * this.delta;
  70. pout[ offset + 2 ] = z;
  71. var q2 = q + this.yd * 3;
  72. nout[ offset ] = this.lerp( nc[ q ], nc[ q2 ], mu );
  73. nout[ offset + 1 ] = this.lerp( nc[ q + 1 ], nc[ q2 + 1 ], mu );
  74. nout[ offset + 2 ] = this.lerp( nc[ q + 2 ], nc[ q2 + 2 ], mu );
  75. };
  76. this.VIntZ = function( q, pout, nout, offset, isol, x, y, z, valp1, valp2 ) {
  77. var mu = ( isol - valp1 ) / ( valp2 - valp1 ),
  78. nc = this.normal_cache;
  79. pout[ offset ] = x;
  80. pout[ offset + 1 ] = y;
  81. pout[ offset + 2 ] = z + mu * this.delta;
  82. var q2 = q + this.zd * 3;
  83. nout[ offset ] = this.lerp( nc[ q ], nc[ q2 ], mu );
  84. nout[ offset + 1 ] = this.lerp( nc[ q + 1 ], nc[ q2 + 1 ], mu );
  85. nout[ offset + 2 ] = this.lerp( nc[ q + 2 ], nc[ q2 + 2 ], mu );
  86. };
  87. this.compNorm = function( q ) {
  88. var q3 = q * 3;
  89. if ( this.normal_cache[ q3 ] === 0.0 ) {
  90. this.normal_cache[ q3 ] = this.field[ q - 1 ] - this.field[ q + 1 ];
  91. this.normal_cache[ q3 + 1 ] = this.field[ q - this.yd ] - this.field[ q + this.yd ];
  92. this.normal_cache[ q3 + 2 ] = this.field[ q - this.zd ] - this.field[ q + this.zd ];
  93. }
  94. };
  95. // Returns total number of triangles. Fills triangles.
  96. // (this is where most of time is spent - it's inner work of O(n3) loop )
  97. this.polygonize = function( fx, fy, fz, q, isol, renderCallback ) {
  98. // cache indices
  99. var q1 = q + 1,
  100. qy = q + this.yd,
  101. qz = q + this.zd,
  102. q1y = q1 + this.yd,
  103. q1z = q1 + this.zd,
  104. qyz = q + this.yd + this.zd,
  105. q1yz = q1 + this.yd + this.zd;
  106. var cubeindex = 0,
  107. field0 = this.field[ q ],
  108. field1 = this.field[ q1 ],
  109. field2 = this.field[ qy ],
  110. field3 = this.field[ q1y ],
  111. field4 = this.field[ qz ],
  112. field5 = this.field[ q1z ],
  113. field6 = this.field[ qyz ],
  114. field7 = this.field[ q1yz ];
  115. if ( field0 < isol ) cubeindex |= 1;
  116. if ( field1 < isol ) cubeindex |= 2;
  117. if ( field2 < isol ) cubeindex |= 8;
  118. if ( field3 < isol ) cubeindex |= 4;
  119. if ( field4 < isol ) cubeindex |= 16;
  120. if ( field5 < isol ) cubeindex |= 32;
  121. if ( field6 < isol ) cubeindex |= 128;
  122. if ( field7 < isol ) cubeindex |= 64;
  123. // if cube is entirely in/out of the surface - bail, nothing to draw
  124. var bits = THREE.edgeTable[ cubeindex ];
  125. if ( bits === 0 ) return 0;
  126. var d = this.delta,
  127. fx2 = fx + d,
  128. fy2 = fy + d,
  129. fz2 = fz + d;
  130. // top of the cube
  131. if ( bits & 1 ) {
  132. this.compNorm( q );
  133. this.compNorm( q1 );
  134. this.VIntX( q * 3, this.vlist, this.nlist, 0, isol, fx, fy, fz, field0, field1 );
  135. }
  136. if ( bits & 2 ) {
  137. this.compNorm( q1 );
  138. this.compNorm( q1y );
  139. this.VIntY( q1 * 3, this.vlist, this.nlist, 3, isol, fx2, fy, fz, field1, field3 );
  140. }
  141. if ( bits & 4 ) {
  142. this.compNorm( qy );
  143. this.compNorm( q1y );
  144. this.VIntX( qy * 3, this.vlist, this.nlist, 6, isol, fx, fy2, fz, field2, field3 );
  145. }
  146. if ( bits & 8 ) {
  147. this.compNorm( q );
  148. this.compNorm( qy );
  149. this.VIntY( q * 3, this.vlist, this.nlist, 9, isol, fx, fy, fz, field0, field2 );
  150. }
  151. // bottom of the cube
  152. if ( bits & 16 ) {
  153. this.compNorm( qz );
  154. this.compNorm( q1z );
  155. this.VIntX( qz * 3, this.vlist, this.nlist, 12, isol, fx, fy, fz2, field4, field5 );
  156. }
  157. if ( bits & 32 ) {
  158. this.compNorm( q1z );
  159. this.compNorm( q1yz );
  160. this.VIntY( q1z * 3, this.vlist, this.nlist, 15, isol, fx2, fy, fz2, field5, field7 );
  161. }
  162. if ( bits & 64 ) {
  163. this.compNorm( qyz );
  164. this.compNorm( q1yz );
  165. this.VIntX( qyz * 3, this.vlist, this.nlist, 18, isol, fx, fy2, fz2, field6, field7 );
  166. }
  167. if ( bits & 128 ) {
  168. this.compNorm( qz );
  169. this.compNorm( qyz );
  170. this.VIntY( qz * 3, this.vlist, this.nlist, 21, isol, fx, fy, fz2, field4, field6 );
  171. }
  172. // vertical lines of the cube
  173. if ( bits & 256 ) {
  174. this.compNorm( q );
  175. this.compNorm( qz );
  176. this.VIntZ( q * 3, this.vlist, this.nlist, 24, isol, fx, fy, fz, field0, field4 );
  177. }
  178. if ( bits & 512 ) {
  179. this.compNorm( q1 );
  180. this.compNorm( q1z );
  181. this.VIntZ( q1 * 3, this.vlist, this.nlist, 27, isol, fx2, fy, fz, field1, field5 );
  182. }
  183. if ( bits & 1024 ) {
  184. this.compNorm( q1y );
  185. this.compNorm( q1yz );
  186. this.VIntZ( q1y * 3, this.vlist, this.nlist, 30, isol, fx2, fy2, fz, field3, field7 );
  187. }
  188. if ( bits & 2048 ) {
  189. this.compNorm( qy );
  190. this.compNorm( qyz );
  191. this.VIntZ( qy * 3, this.vlist, this.nlist, 33, isol, fx, fy2, fz, field2, field6 );
  192. }
  193. cubeindex <<= 4; // re-purpose cubeindex into an offset into triTable
  194. var o1, o2, o3, numtris = 0, i = 0;
  195. // here is where triangles are created
  196. while ( THREE.triTable[ cubeindex + i ] != - 1 ) {
  197. o1 = cubeindex + i;
  198. o2 = o1 + 1;
  199. o3 = o1 + 2;
  200. this.posnormtriv( this.vlist, this.nlist,
  201. 3 * THREE.triTable[ o1 ],
  202. 3 * THREE.triTable[ o2 ],
  203. 3 * THREE.triTable[ o3 ],
  204. renderCallback );
  205. i += 3;
  206. numtris ++;
  207. }
  208. return numtris;
  209. };
  210. /////////////////////////////////////
  211. // Immediate render mode simulator
  212. /////////////////////////////////////
  213. this.posnormtriv = function( pos, norm, o1, o2, o3, renderCallback ) {
  214. var c = this.count * 3;
  215. // positions
  216. this.positionArray[ c ] = pos[ o1 ];
  217. this.positionArray[ c + 1 ] = pos[ o1 + 1 ];
  218. this.positionArray[ c + 2 ] = pos[ o1 + 2 ];
  219. this.positionArray[ c + 3 ] = pos[ o2 ];
  220. this.positionArray[ c + 4 ] = pos[ o2 + 1 ];
  221. this.positionArray[ c + 5 ] = pos[ o2 + 2 ];
  222. this.positionArray[ c + 6 ] = pos[ o3 ];
  223. this.positionArray[ c + 7 ] = pos[ o3 + 1 ];
  224. this.positionArray[ c + 8 ] = pos[ o3 + 2 ];
  225. // normals
  226. this.normalArray[ c ] = norm[ o1 ];
  227. this.normalArray[ c + 1 ] = norm[ o1 + 1 ];
  228. this.normalArray[ c + 2 ] = norm[ o1 + 2 ];
  229. this.normalArray[ c + 3 ] = norm[ o2 ];
  230. this.normalArray[ c + 4 ] = norm[ o2 + 1 ];
  231. this.normalArray[ c + 5 ] = norm[ o2 + 2 ];
  232. this.normalArray[ c + 6 ] = norm[ o3 ];
  233. this.normalArray[ c + 7 ] = norm[ o3 + 1 ];
  234. this.normalArray[ c + 8 ] = norm[ o3 + 2 ];
  235. // uvs
  236. if ( this.enableUvs ) {
  237. var d = this.count * 2;
  238. this.uvArray[ d ] = pos[ o1 ];
  239. this.uvArray[ d + 1 ] = pos[ o1 + 2 ];
  240. this.uvArray[ d + 2 ] = pos[ o2 ];
  241. this.uvArray[ d + 3 ] = pos[ o2 + 2 ];
  242. this.uvArray[ d + 4 ] = pos[ o3 ];
  243. this.uvArray[ d + 5 ] = pos[ o3 + 2 ];
  244. }
  245. // colors
  246. if ( this.enableColors ) {
  247. this.colorArray[ c ] = pos[ o1 ];
  248. this.colorArray[ c + 1 ] = pos[ o1 + 1 ];
  249. this.colorArray[ c + 2 ] = pos[ o1 + 2 ];
  250. this.colorArray[ c + 3 ] = pos[ o2 ];
  251. this.colorArray[ c + 4 ] = pos[ o2 + 1 ];
  252. this.colorArray[ c + 5 ] = pos[ o2 + 2 ];
  253. this.colorArray[ c + 6 ] = pos[ o3 ];
  254. this.colorArray[ c + 7 ] = pos[ o3 + 1 ];
  255. this.colorArray[ c + 8 ] = pos[ o3 + 2 ];
  256. }
  257. this.count += 3;
  258. if ( this.count >= this.maxCount - 3 ) {
  259. this.hasPositions = true;
  260. this.hasNormals = true;
  261. if ( this.enableUvs ) {
  262. this.hasUvs = true;
  263. }
  264. if ( this.enableColors ) {
  265. this.hasColors = true;
  266. }
  267. renderCallback( this );
  268. }
  269. };
  270. this.begin = function( ) {
  271. this.count = 0;
  272. this.hasPositions = false;
  273. this.hasNormals = false;
  274. this.hasUvs = false;
  275. this.hasColors = false;
  276. };
  277. this.end = function( renderCallback ) {
  278. if ( this.count === 0 ) return;
  279. for ( var i = this.count * 3; i < this.positionArray.length; i ++ ) {
  280. this.positionArray[ i ] = 0.0;
  281. }
  282. this.hasPositions = true;
  283. this.hasNormals = true;
  284. if ( this.enableUvs ) {
  285. this.hasUvs = true;
  286. }
  287. if ( this.enableColors ) {
  288. this.hasColors = true;
  289. }
  290. renderCallback( this );
  291. };
  292. /////////////////////////////////////
  293. // Metaballs
  294. /////////////////////////////////////
  295. // Adds a reciprocal ball (nice and blobby) that, to be fast, fades to zero after
  296. // a fixed distance, determined by strength and subtract.
  297. this.addBall = function( ballx, bally, ballz, strength, subtract ) {
  298. // Let's solve the equation to find the radius:
  299. // 1.0 / (0.000001 + radius^2) * strength - subtract = 0
  300. // strength / (radius^2) = subtract
  301. // strength = subtract * radius^2
  302. // radius^2 = strength / subtract
  303. // radius = sqrt(strength / subtract)
  304. var radius = this.size * Math.sqrt( strength / subtract ),
  305. zs = ballz * this.size,
  306. ys = bally * this.size,
  307. xs = ballx * this.size;
  308. var min_z = Math.floor( zs - radius ); if ( min_z < 1 ) min_z = 1;
  309. var max_z = Math.floor( zs + radius ); if ( max_z > this.size - 1 ) max_z = this.size - 1;
  310. var min_y = Math.floor( ys - radius ); if ( min_y < 1 ) min_y = 1;
  311. var max_y = Math.floor( ys + radius ); if ( max_y > this.size - 1 ) max_y = this.size - 1;
  312. var min_x = Math.floor( xs - radius ); if ( min_x < 1 ) min_x = 1;
  313. var max_x = Math.floor( xs + radius ); if ( max_x > this.size - 1 ) max_x = this.size - 1;
  314. // Don't polygonize in the outer layer because normals aren't
  315. // well-defined there.
  316. var x, y, z, y_offset, z_offset, fx, fy, fz, fz2, fy2, val;
  317. for ( z = min_z; z < max_z; z ++ ) {
  318. z_offset = this.size2 * z,
  319. fz = z / this.size - ballz,
  320. fz2 = fz * fz;
  321. for ( y = min_y; y < max_y; y ++ ) {
  322. y_offset = z_offset + this.size * y;
  323. fy = y / this.size - bally;
  324. fy2 = fy * fy;
  325. for ( x = min_x; x < max_x; x ++ ) {
  326. fx = x / this.size - ballx;
  327. val = strength / ( 0.000001 + fx * fx + fy2 + fz2 ) - subtract;
  328. if ( val > 0.0 ) this.field[ y_offset + x ] += val;
  329. }
  330. }
  331. }
  332. };
  333. this.addPlaneX = function( strength, subtract ) {
  334. var x, y, z, xx, val, xdiv, cxy,
  335. // cache attribute lookups
  336. size = this.size,
  337. yd = this.yd,
  338. zd = this.zd,
  339. field = this.field,
  340. dist = size * Math.sqrt( strength / subtract );
  341. if ( dist > size ) dist = size;
  342. for ( x = 0; x < dist; x ++ ) {
  343. xdiv = x / size;
  344. xx = xdiv * xdiv;
  345. val = strength / ( 0.0001 + xx ) - subtract;
  346. if ( val > 0.0 ) {
  347. for ( y = 0; y < size; y ++ ) {
  348. cxy = x + y * yd;
  349. for ( z = 0; z < size; z ++ ) {
  350. field[ zd * z + cxy ] += val;
  351. }
  352. }
  353. }
  354. }
  355. };
  356. this.addPlaneY = function( strength, subtract ) {
  357. var x, y, z, yy, val, ydiv, cy, cxy,
  358. // cache attribute lookups
  359. size = this.size,
  360. yd = this.yd,
  361. zd = this.zd,
  362. field = this.field,
  363. dist = size * Math.sqrt( strength / subtract );
  364. if ( dist > size ) dist = size;
  365. for ( y = 0; y < dist; y ++ ) {
  366. ydiv = y / size;
  367. yy = ydiv * ydiv;
  368. val = strength / ( 0.0001 + yy ) - subtract;
  369. if ( val > 0.0 ) {
  370. cy = y * yd;
  371. for ( x = 0; x < size; x ++ ) {
  372. cxy = cy + x;
  373. for ( z = 0; z < size; z ++ )
  374. field[ zd * z + cxy ] += val;
  375. }
  376. }
  377. }
  378. };
  379. this.addPlaneZ = function( strength, subtract ) {
  380. var x, y, z, zz, val, zdiv, cz, cyz,
  381. // cache attribute lookups
  382. size = this.size,
  383. yd = this.yd,
  384. zd = this.zd,
  385. field = this.field,
  386. dist = size * Math.sqrt( strength / subtract );
  387. if ( dist > size ) dist = size;
  388. for ( z = 0; z < dist; z ++ ) {
  389. zdiv = z / size;
  390. zz = zdiv * zdiv;
  391. val = strength / ( 0.0001 + zz ) - subtract;
  392. if ( val > 0.0 ) {
  393. cz = zd * z;
  394. for ( y = 0; y < size; y ++ ) {
  395. cyz = cz + y * yd;
  396. for ( x = 0; x < size; x ++ )
  397. field[ cyz + x ] += val;
  398. }
  399. }
  400. }
  401. };
  402. /////////////////////////////////////
  403. // Updates
  404. /////////////////////////////////////
  405. this.reset = function () {
  406. var i;
  407. // wipe the normal cache
  408. for ( i = 0; i < this.size3; i ++ ) {
  409. this.normal_cache[ i * 3 ] = 0.0;
  410. this.field[ i ] = 0.0;
  411. }
  412. };
  413. this.render = function ( renderCallback ) {
  414. this.begin();
  415. // Triangulate. Yeah, this is slow.
  416. var smin2 = this.size - 2;
  417. for ( var z = 1; z < smin2; z ++ ) {
  418. var z_offset = this.size2 * z;
  419. var fz = ( z - this.halfsize ) / this.halfsize; //+ 1
  420. for ( var y = 1; y < smin2; y ++ ) {
  421. var y_offset = z_offset + this.size * y;
  422. var fy = ( y - this.halfsize ) / this.halfsize; //+ 1
  423. for ( var x = 1; x < smin2; x ++ ) {
  424. var fx = ( x - this.halfsize ) / this.halfsize; //+ 1
  425. var q = y_offset + x;
  426. this.polygonize( fx, fy, fz, q, this.isolation, renderCallback );
  427. }
  428. }
  429. }
  430. this.end( renderCallback );
  431. };
  432. this.generateGeometry = function() {
  433. var start = 0, geo = new THREE.Geometry();
  434. var normals = [];
  435. var geo_callback = function( object ) {
  436. var i, x, y, z, vertex, normal,
  437. face, a, b, c, na, nb, nc, nfaces;
  438. for ( i = 0; i < object.count; i ++ ) {
  439. a = i * 3;
  440. b = a + 1;
  441. c = a + 2;
  442. x = object.positionArray[ a ];
  443. y = object.positionArray[ b ];
  444. z = object.positionArray[ c ];
  445. vertex = new THREE.Vector3( x, y, z );
  446. x = object.normalArray[ a ];
  447. y = object.normalArray[ b ];
  448. z = object.normalArray[ c ];
  449. normal = new THREE.Vector3( x, y, z );
  450. normal.normalize();
  451. geo.vertices.push( vertex );
  452. normals.push( normal );
  453. }
  454. nfaces = object.count / 3;
  455. for ( i = 0; i < nfaces; i ++ ) {
  456. a = ( start + i ) * 3;
  457. b = a + 1;
  458. c = a + 2;
  459. na = normals[ a ];
  460. nb = normals[ b ];
  461. nc = normals[ c ];
  462. face = new THREE.Face3( a, b, c, [ na, nb, nc ] );
  463. geo.faces.push( face );
  464. }
  465. start += nfaces;
  466. object.count = 0;
  467. };
  468. this.render( geo_callback );
  469. // console.log( "generated " + geo.faces.length + " triangles" );
  470. return geo;
  471. };
  472. this.init( resolution );
  473. };
  474. THREE.MarchingCubes.prototype = Object.create( THREE.ImmediateRenderObject.prototype );
  475. THREE.MarchingCubes.prototype.constructor = THREE.MarchingCubes;
  476. /////////////////////////////////////
  477. // Marching cubes lookup tables
  478. /////////////////////////////////////
  479. // These tables are straight from Paul Bourke's page:
  480. // http://local.wasp.uwa.edu.au/~pbourke/geometry/polygonise/
  481. // who in turn got them from Cory Gene Bloyd.
  482. THREE.edgeTable = new Int32Array( [
  483. 0x0, 0x109, 0x203, 0x30a, 0x406, 0x50f, 0x605, 0x70c,
  484. 0x80c, 0x905, 0xa0f, 0xb06, 0xc0a, 0xd03, 0xe09, 0xf00,
  485. 0x190, 0x99, 0x393, 0x29a, 0x596, 0x49f, 0x795, 0x69c,
  486. 0x99c, 0x895, 0xb9f, 0xa96, 0xd9a, 0xc93, 0xf99, 0xe90,
  487. 0x230, 0x339, 0x33, 0x13a, 0x636, 0x73f, 0x435, 0x53c,
  488. 0xa3c, 0xb35, 0x83f, 0x936, 0xe3a, 0xf33, 0xc39, 0xd30,
  489. 0x3a0, 0x2a9, 0x1a3, 0xaa, 0x7a6, 0x6af, 0x5a5, 0x4ac,
  490. 0xbac, 0xaa5, 0x9af, 0x8a6, 0xfaa, 0xea3, 0xda9, 0xca0,
  491. 0x460, 0x569, 0x663, 0x76a, 0x66, 0x16f, 0x265, 0x36c,
  492. 0xc6c, 0xd65, 0xe6f, 0xf66, 0x86a, 0x963, 0xa69, 0xb60,
  493. 0x5f0, 0x4f9, 0x7f3, 0x6fa, 0x1f6, 0xff, 0x3f5, 0x2fc,
  494. 0xdfc, 0xcf5, 0xfff, 0xef6, 0x9fa, 0x8f3, 0xbf9, 0xaf0,
  495. 0x650, 0x759, 0x453, 0x55a, 0x256, 0x35f, 0x55, 0x15c,
  496. 0xe5c, 0xf55, 0xc5f, 0xd56, 0xa5a, 0xb53, 0x859, 0x950,
  497. 0x7c0, 0x6c9, 0x5c3, 0x4ca, 0x3c6, 0x2cf, 0x1c5, 0xcc,
  498. 0xfcc, 0xec5, 0xdcf, 0xcc6, 0xbca, 0xac3, 0x9c9, 0x8c0,
  499. 0x8c0, 0x9c9, 0xac3, 0xbca, 0xcc6, 0xdcf, 0xec5, 0xfcc,
  500. 0xcc, 0x1c5, 0x2cf, 0x3c6, 0x4ca, 0x5c3, 0x6c9, 0x7c0,
  501. 0x950, 0x859, 0xb53, 0xa5a, 0xd56, 0xc5f, 0xf55, 0xe5c,
  502. 0x15c, 0x55, 0x35f, 0x256, 0x55a, 0x453, 0x759, 0x650,
  503. 0xaf0, 0xbf9, 0x8f3, 0x9fa, 0xef6, 0xfff, 0xcf5, 0xdfc,
  504. 0x2fc, 0x3f5, 0xff, 0x1f6, 0x6fa, 0x7f3, 0x4f9, 0x5f0,
  505. 0xb60, 0xa69, 0x963, 0x86a, 0xf66, 0xe6f, 0xd65, 0xc6c,
  506. 0x36c, 0x265, 0x16f, 0x66, 0x76a, 0x663, 0x569, 0x460,
  507. 0xca0, 0xda9, 0xea3, 0xfaa, 0x8a6, 0x9af, 0xaa5, 0xbac,
  508. 0x4ac, 0x5a5, 0x6af, 0x7a6, 0xaa, 0x1a3, 0x2a9, 0x3a0,
  509. 0xd30, 0xc39, 0xf33, 0xe3a, 0x936, 0x83f, 0xb35, 0xa3c,
  510. 0x53c, 0x435, 0x73f, 0x636, 0x13a, 0x33, 0x339, 0x230,
  511. 0xe90, 0xf99, 0xc93, 0xd9a, 0xa96, 0xb9f, 0x895, 0x99c,
  512. 0x69c, 0x795, 0x49f, 0x596, 0x29a, 0x393, 0x99, 0x190,
  513. 0xf00, 0xe09, 0xd03, 0xc0a, 0xb06, 0xa0f, 0x905, 0x80c,
  514. 0x70c, 0x605, 0x50f, 0x406, 0x30a, 0x203, 0x109, 0x0 ] );
  515. THREE.triTable = new Int32Array( [
  516. - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  517. 0, 8, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  518. 0, 1, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  519. 1, 8, 3, 9, 8, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  520. 1, 2, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  521. 0, 8, 3, 1, 2, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  522. 9, 2, 10, 0, 2, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  523. 2, 8, 3, 2, 10, 8, 10, 9, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  524. 3, 11, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  525. 0, 11, 2, 8, 11, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  526. 1, 9, 0, 2, 3, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  527. 1, 11, 2, 1, 9, 11, 9, 8, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  528. 3, 10, 1, 11, 10, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  529. 0, 10, 1, 0, 8, 10, 8, 11, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  530. 3, 9, 0, 3, 11, 9, 11, 10, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  531. 9, 8, 10, 10, 8, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  532. 4, 7, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  533. 4, 3, 0, 7, 3, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  534. 0, 1, 9, 8, 4, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  535. 4, 1, 9, 4, 7, 1, 7, 3, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  536. 1, 2, 10, 8, 4, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  537. 3, 4, 7, 3, 0, 4, 1, 2, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  538. 9, 2, 10, 9, 0, 2, 8, 4, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  539. 2, 10, 9, 2, 9, 7, 2, 7, 3, 7, 9, 4, - 1, - 1, - 1, - 1,
  540. 8, 4, 7, 3, 11, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  541. 11, 4, 7, 11, 2, 4, 2, 0, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  542. 9, 0, 1, 8, 4, 7, 2, 3, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  543. 4, 7, 11, 9, 4, 11, 9, 11, 2, 9, 2, 1, - 1, - 1, - 1, - 1,
  544. 3, 10, 1, 3, 11, 10, 7, 8, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  545. 1, 11, 10, 1, 4, 11, 1, 0, 4, 7, 11, 4, - 1, - 1, - 1, - 1,
  546. 4, 7, 8, 9, 0, 11, 9, 11, 10, 11, 0, 3, - 1, - 1, - 1, - 1,
  547. 4, 7, 11, 4, 11, 9, 9, 11, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  548. 9, 5, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  549. 9, 5, 4, 0, 8, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  550. 0, 5, 4, 1, 5, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  551. 8, 5, 4, 8, 3, 5, 3, 1, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  552. 1, 2, 10, 9, 5, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  553. 3, 0, 8, 1, 2, 10, 4, 9, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  554. 5, 2, 10, 5, 4, 2, 4, 0, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  555. 2, 10, 5, 3, 2, 5, 3, 5, 4, 3, 4, 8, - 1, - 1, - 1, - 1,
  556. 9, 5, 4, 2, 3, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  557. 0, 11, 2, 0, 8, 11, 4, 9, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  558. 0, 5, 4, 0, 1, 5, 2, 3, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  559. 2, 1, 5, 2, 5, 8, 2, 8, 11, 4, 8, 5, - 1, - 1, - 1, - 1,
  560. 10, 3, 11, 10, 1, 3, 9, 5, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  561. 4, 9, 5, 0, 8, 1, 8, 10, 1, 8, 11, 10, - 1, - 1, - 1, - 1,
  562. 5, 4, 0, 5, 0, 11, 5, 11, 10, 11, 0, 3, - 1, - 1, - 1, - 1,
  563. 5, 4, 8, 5, 8, 10, 10, 8, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  564. 9, 7, 8, 5, 7, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  565. 9, 3, 0, 9, 5, 3, 5, 7, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  566. 0, 7, 8, 0, 1, 7, 1, 5, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  567. 1, 5, 3, 3, 5, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  568. 9, 7, 8, 9, 5, 7, 10, 1, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  569. 10, 1, 2, 9, 5, 0, 5, 3, 0, 5, 7, 3, - 1, - 1, - 1, - 1,
  570. 8, 0, 2, 8, 2, 5, 8, 5, 7, 10, 5, 2, - 1, - 1, - 1, - 1,
  571. 2, 10, 5, 2, 5, 3, 3, 5, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  572. 7, 9, 5, 7, 8, 9, 3, 11, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  573. 9, 5, 7, 9, 7, 2, 9, 2, 0, 2, 7, 11, - 1, - 1, - 1, - 1,
  574. 2, 3, 11, 0, 1, 8, 1, 7, 8, 1, 5, 7, - 1, - 1, - 1, - 1,
  575. 11, 2, 1, 11, 1, 7, 7, 1, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  576. 9, 5, 8, 8, 5, 7, 10, 1, 3, 10, 3, 11, - 1, - 1, - 1, - 1,
  577. 5, 7, 0, 5, 0, 9, 7, 11, 0, 1, 0, 10, 11, 10, 0, - 1,
  578. 11, 10, 0, 11, 0, 3, 10, 5, 0, 8, 0, 7, 5, 7, 0, - 1,
  579. 11, 10, 5, 7, 11, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  580. 10, 6, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  581. 0, 8, 3, 5, 10, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  582. 9, 0, 1, 5, 10, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  583. 1, 8, 3, 1, 9, 8, 5, 10, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  584. 1, 6, 5, 2, 6, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  585. 1, 6, 5, 1, 2, 6, 3, 0, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  586. 9, 6, 5, 9, 0, 6, 0, 2, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  587. 5, 9, 8, 5, 8, 2, 5, 2, 6, 3, 2, 8, - 1, - 1, - 1, - 1,
  588. 2, 3, 11, 10, 6, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  589. 11, 0, 8, 11, 2, 0, 10, 6, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  590. 0, 1, 9, 2, 3, 11, 5, 10, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  591. 5, 10, 6, 1, 9, 2, 9, 11, 2, 9, 8, 11, - 1, - 1, - 1, - 1,
  592. 6, 3, 11, 6, 5, 3, 5, 1, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  593. 0, 8, 11, 0, 11, 5, 0, 5, 1, 5, 11, 6, - 1, - 1, - 1, - 1,
  594. 3, 11, 6, 0, 3, 6, 0, 6, 5, 0, 5, 9, - 1, - 1, - 1, - 1,
  595. 6, 5, 9, 6, 9, 11, 11, 9, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  596. 5, 10, 6, 4, 7, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  597. 4, 3, 0, 4, 7, 3, 6, 5, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  598. 1, 9, 0, 5, 10, 6, 8, 4, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  599. 10, 6, 5, 1, 9, 7, 1, 7, 3, 7, 9, 4, - 1, - 1, - 1, - 1,
  600. 6, 1, 2, 6, 5, 1, 4, 7, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  601. 1, 2, 5, 5, 2, 6, 3, 0, 4, 3, 4, 7, - 1, - 1, - 1, - 1,
  602. 8, 4, 7, 9, 0, 5, 0, 6, 5, 0, 2, 6, - 1, - 1, - 1, - 1,
  603. 7, 3, 9, 7, 9, 4, 3, 2, 9, 5, 9, 6, 2, 6, 9, - 1,
  604. 3, 11, 2, 7, 8, 4, 10, 6, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  605. 5, 10, 6, 4, 7, 2, 4, 2, 0, 2, 7, 11, - 1, - 1, - 1, - 1,
  606. 0, 1, 9, 4, 7, 8, 2, 3, 11, 5, 10, 6, - 1, - 1, - 1, - 1,
  607. 9, 2, 1, 9, 11, 2, 9, 4, 11, 7, 11, 4, 5, 10, 6, - 1,
  608. 8, 4, 7, 3, 11, 5, 3, 5, 1, 5, 11, 6, - 1, - 1, - 1, - 1,
  609. 5, 1, 11, 5, 11, 6, 1, 0, 11, 7, 11, 4, 0, 4, 11, - 1,
  610. 0, 5, 9, 0, 6, 5, 0, 3, 6, 11, 6, 3, 8, 4, 7, - 1,
  611. 6, 5, 9, 6, 9, 11, 4, 7, 9, 7, 11, 9, - 1, - 1, - 1, - 1,
  612. 10, 4, 9, 6, 4, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  613. 4, 10, 6, 4, 9, 10, 0, 8, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  614. 10, 0, 1, 10, 6, 0, 6, 4, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  615. 8, 3, 1, 8, 1, 6, 8, 6, 4, 6, 1, 10, - 1, - 1, - 1, - 1,
  616. 1, 4, 9, 1, 2, 4, 2, 6, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  617. 3, 0, 8, 1, 2, 9, 2, 4, 9, 2, 6, 4, - 1, - 1, - 1, - 1,
  618. 0, 2, 4, 4, 2, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  619. 8, 3, 2, 8, 2, 4, 4, 2, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  620. 10, 4, 9, 10, 6, 4, 11, 2, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  621. 0, 8, 2, 2, 8, 11, 4, 9, 10, 4, 10, 6, - 1, - 1, - 1, - 1,
  622. 3, 11, 2, 0, 1, 6, 0, 6, 4, 6, 1, 10, - 1, - 1, - 1, - 1,
  623. 6, 4, 1, 6, 1, 10, 4, 8, 1, 2, 1, 11, 8, 11, 1, - 1,
  624. 9, 6, 4, 9, 3, 6, 9, 1, 3, 11, 6, 3, - 1, - 1, - 1, - 1,
  625. 8, 11, 1, 8, 1, 0, 11, 6, 1, 9, 1, 4, 6, 4, 1, - 1,
  626. 3, 11, 6, 3, 6, 0, 0, 6, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  627. 6, 4, 8, 11, 6, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  628. 7, 10, 6, 7, 8, 10, 8, 9, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  629. 0, 7, 3, 0, 10, 7, 0, 9, 10, 6, 7, 10, - 1, - 1, - 1, - 1,
  630. 10, 6, 7, 1, 10, 7, 1, 7, 8, 1, 8, 0, - 1, - 1, - 1, - 1,
  631. 10, 6, 7, 10, 7, 1, 1, 7, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  632. 1, 2, 6, 1, 6, 8, 1, 8, 9, 8, 6, 7, - 1, - 1, - 1, - 1,
  633. 2, 6, 9, 2, 9, 1, 6, 7, 9, 0, 9, 3, 7, 3, 9, - 1,
  634. 7, 8, 0, 7, 0, 6, 6, 0, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  635. 7, 3, 2, 6, 7, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  636. 2, 3, 11, 10, 6, 8, 10, 8, 9, 8, 6, 7, - 1, - 1, - 1, - 1,
  637. 2, 0, 7, 2, 7, 11, 0, 9, 7, 6, 7, 10, 9, 10, 7, - 1,
  638. 1, 8, 0, 1, 7, 8, 1, 10, 7, 6, 7, 10, 2, 3, 11, - 1,
  639. 11, 2, 1, 11, 1, 7, 10, 6, 1, 6, 7, 1, - 1, - 1, - 1, - 1,
  640. 8, 9, 6, 8, 6, 7, 9, 1, 6, 11, 6, 3, 1, 3, 6, - 1,
  641. 0, 9, 1, 11, 6, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  642. 7, 8, 0, 7, 0, 6, 3, 11, 0, 11, 6, 0, - 1, - 1, - 1, - 1,
  643. 7, 11, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  644. 7, 6, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  645. 3, 0, 8, 11, 7, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  646. 0, 1, 9, 11, 7, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  647. 8, 1, 9, 8, 3, 1, 11, 7, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  648. 10, 1, 2, 6, 11, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  649. 1, 2, 10, 3, 0, 8, 6, 11, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  650. 2, 9, 0, 2, 10, 9, 6, 11, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  651. 6, 11, 7, 2, 10, 3, 10, 8, 3, 10, 9, 8, - 1, - 1, - 1, - 1,
  652. 7, 2, 3, 6, 2, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  653. 7, 0, 8, 7, 6, 0, 6, 2, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  654. 2, 7, 6, 2, 3, 7, 0, 1, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  655. 1, 6, 2, 1, 8, 6, 1, 9, 8, 8, 7, 6, - 1, - 1, - 1, - 1,
  656. 10, 7, 6, 10, 1, 7, 1, 3, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  657. 10, 7, 6, 1, 7, 10, 1, 8, 7, 1, 0, 8, - 1, - 1, - 1, - 1,
  658. 0, 3, 7, 0, 7, 10, 0, 10, 9, 6, 10, 7, - 1, - 1, - 1, - 1,
  659. 7, 6, 10, 7, 10, 8, 8, 10, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  660. 6, 8, 4, 11, 8, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  661. 3, 6, 11, 3, 0, 6, 0, 4, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  662. 8, 6, 11, 8, 4, 6, 9, 0, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  663. 9, 4, 6, 9, 6, 3, 9, 3, 1, 11, 3, 6, - 1, - 1, - 1, - 1,
  664. 6, 8, 4, 6, 11, 8, 2, 10, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  665. 1, 2, 10, 3, 0, 11, 0, 6, 11, 0, 4, 6, - 1, - 1, - 1, - 1,
  666. 4, 11, 8, 4, 6, 11, 0, 2, 9, 2, 10, 9, - 1, - 1, - 1, - 1,
  667. 10, 9, 3, 10, 3, 2, 9, 4, 3, 11, 3, 6, 4, 6, 3, - 1,
  668. 8, 2, 3, 8, 4, 2, 4, 6, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  669. 0, 4, 2, 4, 6, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  670. 1, 9, 0, 2, 3, 4, 2, 4, 6, 4, 3, 8, - 1, - 1, - 1, - 1,
  671. 1, 9, 4, 1, 4, 2, 2, 4, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  672. 8, 1, 3, 8, 6, 1, 8, 4, 6, 6, 10, 1, - 1, - 1, - 1, - 1,
  673. 10, 1, 0, 10, 0, 6, 6, 0, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  674. 4, 6, 3, 4, 3, 8, 6, 10, 3, 0, 3, 9, 10, 9, 3, - 1,
  675. 10, 9, 4, 6, 10, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  676. 4, 9, 5, 7, 6, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  677. 0, 8, 3, 4, 9, 5, 11, 7, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  678. 5, 0, 1, 5, 4, 0, 7, 6, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  679. 11, 7, 6, 8, 3, 4, 3, 5, 4, 3, 1, 5, - 1, - 1, - 1, - 1,
  680. 9, 5, 4, 10, 1, 2, 7, 6, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  681. 6, 11, 7, 1, 2, 10, 0, 8, 3, 4, 9, 5, - 1, - 1, - 1, - 1,
  682. 7, 6, 11, 5, 4, 10, 4, 2, 10, 4, 0, 2, - 1, - 1, - 1, - 1,
  683. 3, 4, 8, 3, 5, 4, 3, 2, 5, 10, 5, 2, 11, 7, 6, - 1,
  684. 7, 2, 3, 7, 6, 2, 5, 4, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  685. 9, 5, 4, 0, 8, 6, 0, 6, 2, 6, 8, 7, - 1, - 1, - 1, - 1,
  686. 3, 6, 2, 3, 7, 6, 1, 5, 0, 5, 4, 0, - 1, - 1, - 1, - 1,
  687. 6, 2, 8, 6, 8, 7, 2, 1, 8, 4, 8, 5, 1, 5, 8, - 1,
  688. 9, 5, 4, 10, 1, 6, 1, 7, 6, 1, 3, 7, - 1, - 1, - 1, - 1,
  689. 1, 6, 10, 1, 7, 6, 1, 0, 7, 8, 7, 0, 9, 5, 4, - 1,
  690. 4, 0, 10, 4, 10, 5, 0, 3, 10, 6, 10, 7, 3, 7, 10, - 1,
  691. 7, 6, 10, 7, 10, 8, 5, 4, 10, 4, 8, 10, - 1, - 1, - 1, - 1,
  692. 6, 9, 5, 6, 11, 9, 11, 8, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  693. 3, 6, 11, 0, 6, 3, 0, 5, 6, 0, 9, 5, - 1, - 1, - 1, - 1,
  694. 0, 11, 8, 0, 5, 11, 0, 1, 5, 5, 6, 11, - 1, - 1, - 1, - 1,
  695. 6, 11, 3, 6, 3, 5, 5, 3, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  696. 1, 2, 10, 9, 5, 11, 9, 11, 8, 11, 5, 6, - 1, - 1, - 1, - 1,
  697. 0, 11, 3, 0, 6, 11, 0, 9, 6, 5, 6, 9, 1, 2, 10, - 1,
  698. 11, 8, 5, 11, 5, 6, 8, 0, 5, 10, 5, 2, 0, 2, 5, - 1,
  699. 6, 11, 3, 6, 3, 5, 2, 10, 3, 10, 5, 3, - 1, - 1, - 1, - 1,
  700. 5, 8, 9, 5, 2, 8, 5, 6, 2, 3, 8, 2, - 1, - 1, - 1, - 1,
  701. 9, 5, 6, 9, 6, 0, 0, 6, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  702. 1, 5, 8, 1, 8, 0, 5, 6, 8, 3, 8, 2, 6, 2, 8, - 1,
  703. 1, 5, 6, 2, 1, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  704. 1, 3, 6, 1, 6, 10, 3, 8, 6, 5, 6, 9, 8, 9, 6, - 1,
  705. 10, 1, 0, 10, 0, 6, 9, 5, 0, 5, 6, 0, - 1, - 1, - 1, - 1,
  706. 0, 3, 8, 5, 6, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  707. 10, 5, 6, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  708. 11, 5, 10, 7, 5, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  709. 11, 5, 10, 11, 7, 5, 8, 3, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  710. 5, 11, 7, 5, 10, 11, 1, 9, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  711. 10, 7, 5, 10, 11, 7, 9, 8, 1, 8, 3, 1, - 1, - 1, - 1, - 1,
  712. 11, 1, 2, 11, 7, 1, 7, 5, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  713. 0, 8, 3, 1, 2, 7, 1, 7, 5, 7, 2, 11, - 1, - 1, - 1, - 1,
  714. 9, 7, 5, 9, 2, 7, 9, 0, 2, 2, 11, 7, - 1, - 1, - 1, - 1,
  715. 7, 5, 2, 7, 2, 11, 5, 9, 2, 3, 2, 8, 9, 8, 2, - 1,
  716. 2, 5, 10, 2, 3, 5, 3, 7, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  717. 8, 2, 0, 8, 5, 2, 8, 7, 5, 10, 2, 5, - 1, - 1, - 1, - 1,
  718. 9, 0, 1, 5, 10, 3, 5, 3, 7, 3, 10, 2, - 1, - 1, - 1, - 1,
  719. 9, 8, 2, 9, 2, 1, 8, 7, 2, 10, 2, 5, 7, 5, 2, - 1,
  720. 1, 3, 5, 3, 7, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  721. 0, 8, 7, 0, 7, 1, 1, 7, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  722. 9, 0, 3, 9, 3, 5, 5, 3, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  723. 9, 8, 7, 5, 9, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  724. 5, 8, 4, 5, 10, 8, 10, 11, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  725. 5, 0, 4, 5, 11, 0, 5, 10, 11, 11, 3, 0, - 1, - 1, - 1, - 1,
  726. 0, 1, 9, 8, 4, 10, 8, 10, 11, 10, 4, 5, - 1, - 1, - 1, - 1,
  727. 10, 11, 4, 10, 4, 5, 11, 3, 4, 9, 4, 1, 3, 1, 4, - 1,
  728. 2, 5, 1, 2, 8, 5, 2, 11, 8, 4, 5, 8, - 1, - 1, - 1, - 1,
  729. 0, 4, 11, 0, 11, 3, 4, 5, 11, 2, 11, 1, 5, 1, 11, - 1,
  730. 0, 2, 5, 0, 5, 9, 2, 11, 5, 4, 5, 8, 11, 8, 5, - 1,
  731. 9, 4, 5, 2, 11, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  732. 2, 5, 10, 3, 5, 2, 3, 4, 5, 3, 8, 4, - 1, - 1, - 1, - 1,
  733. 5, 10, 2, 5, 2, 4, 4, 2, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  734. 3, 10, 2, 3, 5, 10, 3, 8, 5, 4, 5, 8, 0, 1, 9, - 1,
  735. 5, 10, 2, 5, 2, 4, 1, 9, 2, 9, 4, 2, - 1, - 1, - 1, - 1,
  736. 8, 4, 5, 8, 5, 3, 3, 5, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  737. 0, 4, 5, 1, 0, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  738. 8, 4, 5, 8, 5, 3, 9, 0, 5, 0, 3, 5, - 1, - 1, - 1, - 1,
  739. 9, 4, 5, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  740. 4, 11, 7, 4, 9, 11, 9, 10, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  741. 0, 8, 3, 4, 9, 7, 9, 11, 7, 9, 10, 11, - 1, - 1, - 1, - 1,
  742. 1, 10, 11, 1, 11, 4, 1, 4, 0, 7, 4, 11, - 1, - 1, - 1, - 1,
  743. 3, 1, 4, 3, 4, 8, 1, 10, 4, 7, 4, 11, 10, 11, 4, - 1,
  744. 4, 11, 7, 9, 11, 4, 9, 2, 11, 9, 1, 2, - 1, - 1, - 1, - 1,
  745. 9, 7, 4, 9, 11, 7, 9, 1, 11, 2, 11, 1, 0, 8, 3, - 1,
  746. 11, 7, 4, 11, 4, 2, 2, 4, 0, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  747. 11, 7, 4, 11, 4, 2, 8, 3, 4, 3, 2, 4, - 1, - 1, - 1, - 1,
  748. 2, 9, 10, 2, 7, 9, 2, 3, 7, 7, 4, 9, - 1, - 1, - 1, - 1,
  749. 9, 10, 7, 9, 7, 4, 10, 2, 7, 8, 7, 0, 2, 0, 7, - 1,
  750. 3, 7, 10, 3, 10, 2, 7, 4, 10, 1, 10, 0, 4, 0, 10, - 1,
  751. 1, 10, 2, 8, 7, 4, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  752. 4, 9, 1, 4, 1, 7, 7, 1, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  753. 4, 9, 1, 4, 1, 7, 0, 8, 1, 8, 7, 1, - 1, - 1, - 1, - 1,
  754. 4, 0, 3, 7, 4, 3, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  755. 4, 8, 7, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  756. 9, 10, 8, 10, 11, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  757. 3, 0, 9, 3, 9, 11, 11, 9, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  758. 0, 1, 10, 0, 10, 8, 8, 10, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  759. 3, 1, 10, 11, 3, 10, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  760. 1, 2, 11, 1, 11, 9, 9, 11, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  761. 3, 0, 9, 3, 9, 11, 1, 2, 9, 2, 11, 9, - 1, - 1, - 1, - 1,
  762. 0, 2, 11, 8, 0, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  763. 3, 2, 11, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  764. 2, 3, 8, 2, 8, 10, 10, 8, 9, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  765. 9, 10, 2, 0, 9, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  766. 2, 3, 8, 2, 8, 10, 0, 1, 8, 1, 10, 8, - 1, - 1, - 1, - 1,
  767. 1, 10, 2, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  768. 1, 3, 8, 9, 1, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  769. 0, 9, 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  770. 0, 3, 8, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1,
  771. - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1, - 1 ] );