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  1. diff --git a/build/three.js b/build/three.js
  2. index 5149be5..c57af8b 100644
  3. --- a/build/three.js
  4. +++ b/build/three.js
  5. @@ -3707,36 +3707,44 @@
  6. },
  7. - multiplyMatrices: function ( a, b ) {
  8. -
  9. - var ae = (a === this) ? a.elements.slice() : a.elements;
  10. - var be = (b === this) ? b.elements.slice() : b.elements;
  11. - var te = this.elements;
  12. -
  13. - te[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  14. - te[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  15. - te[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  16. - te[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  17. -
  18. - te[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  19. - te[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  20. - te[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  21. - te[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  22. -
  23. - te[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  24. - te[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  25. - te[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  26. - te[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  27. -
  28. - te[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  29. - te[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  30. - te[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  31. - te[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  32. -
  33. - return this;
  34. -
  35. - },
  36. -
  37. + multiplyMatrices: ( function () {
  38. +
  39. + var e = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
  40. +
  41. + return function ( a, b ) {
  42. +
  43. + var ae = a.elements;
  44. + var be = b.elements;
  45. + var te = this.elements;
  46. +
  47. + e[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  48. + e[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  49. + e[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  50. + e[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  51. +
  52. + e[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  53. + e[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  54. + e[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  55. + e[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  56. +
  57. + e[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  58. + e[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  59. + e[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  60. + e[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  61. +
  62. + e[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  63. + e[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  64. + e[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  65. + e[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  66. +
  67. + for ( var i = 0; i < 16; i ++ ) te[ i ] = e[ i ];
  68. +
  69. + return this;
  70. +
  71. + };
  72. +
  73. + } )(),
  74. +
  75. multiplyToArray: function ( a, b, r ) {
  76. var te = this.elements;
  77. diff --git a/build/three.module.js b/build/three.module.js
  78. index d6ac200..f2d9329 100644
  79. --- a/build/three.module.js
  80. +++ b/build/three.module.js
  81. @@ -3701,36 +3701,44 @@ Matrix4.prototype = {
  82. },
  83. - multiplyMatrices: function ( a, b ) {
  84. -
  85. - var ae = (a === this) ? a.elements.slice() : a.elements;
  86. - var be = (b === this) ? b.elements.slice() : b.elements;
  87. - var te = this.elements;
  88. -
  89. - te[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  90. - te[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  91. - te[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  92. - te[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  93. -
  94. - te[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  95. - te[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  96. - te[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  97. - te[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  98. -
  99. - te[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  100. - te[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  101. - te[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  102. - te[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  103. -
  104. - te[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  105. - te[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  106. - te[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  107. - te[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  108. -
  109. - return this;
  110. -
  111. - },
  112. -
  113. + multiplyMatrices: ( function () {
  114. +
  115. + var e = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
  116. +
  117. + return function ( a, b ) {
  118. +
  119. + var ae = a.elements;
  120. + var be = b.elements;
  121. + var te = this.elements;
  122. +
  123. + e[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  124. + e[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  125. + e[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  126. + e[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  127. +
  128. + e[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  129. + e[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  130. + e[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  131. + e[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  132. +
  133. + e[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  134. + e[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  135. + e[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  136. + e[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  137. +
  138. + e[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  139. + e[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  140. + e[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  141. + e[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  142. +
  143. + for ( var i = 0; i < 16; i ++ ) te[ i ] = e[ i ];
  144. +
  145. + return this;
  146. +
  147. + };
  148. +
  149. + } )(),
  150. +
  151. multiplyToArray: function ( a, b, r ) {
  152. var te = this.elements;
  153. diff --git a/src/math/Matrix4.js b/src/math/Matrix4.js
  154. index dff7653..3d00af3 100644
  155. --- a/src/math/Matrix4.js
  156. +++ b/src/math/Matrix4.js
  157. @@ -380,36 +380,44 @@ Matrix4.prototype = {
  158. },
  159. - multiplyMatrices: function ( a, b ) {
  160. -
  161. - var ae = (a === this) ? a.elements.slice() : a.elements;
  162. - var be = (b === this) ? b.elements.slice() : b.elements;
  163. - var te = this.elements;
  164. -
  165. - te[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  166. - te[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  167. - te[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  168. - te[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  169. -
  170. - te[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  171. - te[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  172. - te[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  173. - te[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  174. -
  175. - te[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  176. - te[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  177. - te[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  178. - te[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  179. -
  180. - te[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  181. - te[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  182. - te[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  183. - te[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  184. -
  185. - return this;
  186. -
  187. - },
  188. -
  189. + multiplyMatrices: ( function () {
  190. +
  191. + var e = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
  192. +
  193. + return function ( a, b ) {
  194. +
  195. + var ae = a.elements;
  196. + var be = b.elements;
  197. + var te = this.elements;
  198. +
  199. + e[ 0 ] = ae[ 0 ] * be[ 0 ] + ae[ 4 ] * be[ 1 ] + ae[ 8 ] * be[ 2 ] + ae[ 12 ] * be[ 3 ];
  200. + e[ 4 ] = ae[ 0 ] * be[ 4 ] + ae[ 4 ] * be[ 5 ] + ae[ 8 ] * be[ 6 ] + ae[ 12 ] * be[ 7 ];
  201. + e[ 8 ] = ae[ 0 ] * be[ 8 ] + ae[ 4 ] * be[ 9 ] + ae[ 8 ] * be[ 10 ] + ae[ 12 ] * be[ 11 ];
  202. + e[ 12 ] = ae[ 0 ] * be[ 12 ] + ae[ 4 ] * be[ 13 ] + ae[ 8 ] * be[ 14 ] + ae[ 12 ] * be[ 15 ];
  203. +
  204. + e[ 1 ] = ae[ 1 ] * be[ 0 ] + ae[ 5 ] * be[ 1 ] + ae[ 9 ] * be[ 2 ] + ae[ 13 ] * be[ 3 ];
  205. + e[ 5 ] = ae[ 1 ] * be[ 4 ] + ae[ 5 ] * be[ 5 ] + ae[ 9 ] * be[ 6 ] + ae[ 13 ] * be[ 7 ];
  206. + e[ 9 ] = ae[ 1 ] * be[ 8 ] + ae[ 5 ] * be[ 9 ] + ae[ 9 ] * be[ 10 ] + ae[ 13 ] * be[ 11 ];
  207. + e[ 13 ] = ae[ 1 ] * be[ 12 ] + ae[ 5 ] * be[ 13 ] + ae[ 9 ] * be[ 14 ] + ae[ 13 ] * be[ 15 ];
  208. +
  209. + e[ 2 ] = ae[ 2 ] * be[ 0 ] + ae[ 6 ] * be[ 1 ] + ae[ 10 ] * be[ 2 ] + ae[ 14 ] * be[ 3 ];
  210. + e[ 6 ] = ae[ 2 ] * be[ 4 ] + ae[ 6 ] * be[ 5 ] + ae[ 10 ] * be[ 6 ] + ae[ 14 ] * be[ 7 ];
  211. + e[ 10 ] = ae[ 2 ] * be[ 8 ] + ae[ 6 ] * be[ 9 ] + ae[ 10 ] * be[ 10 ] + ae[ 14 ] * be[ 11 ];
  212. + e[ 14 ] = ae[ 2 ] * be[ 12 ] + ae[ 6 ] * be[ 13 ] + ae[ 10 ] * be[ 14 ] + ae[ 14 ] * be[ 15 ];
  213. +
  214. + e[ 3 ] = ae[ 3 ] * be[ 0 ] + ae[ 7 ] * be[ 1 ] + ae[ 11 ] * be[ 2 ] + ae[ 15 ] * be[ 3 ];
  215. + e[ 7 ] = ae[ 3 ] * be[ 4 ] + ae[ 7 ] * be[ 5 ] + ae[ 11 ] * be[ 6 ] + ae[ 15 ] * be[ 7 ];
  216. + e[ 11 ] = ae[ 3 ] * be[ 8 ] + ae[ 7 ] * be[ 9 ] + ae[ 11 ] * be[ 10 ] + ae[ 15 ] * be[ 11 ];
  217. + e[ 15 ] = ae[ 3 ] * be[ 12 ] + ae[ 7 ] * be[ 13 ] + ae[ 11 ] * be[ 14 ] + ae[ 15 ] * be[ 15 ];
  218. +
  219. + for ( var i = 0; i < 16; i ++ ) te[ i ] = e[ i ];
  220. +
  221. + return this;
  222. +
  223. + };
  224. +
  225. + } )(),
  226. +
  227. multiplyToArray: function ( a, b, r ) {
  228. var te = this.elements;