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BufferAttribute.html

BufferAttribute.html 36 KB
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  1. <!DOCTYPE html>
    2. 

  2. <html lang="en">
    3. 

  3. <head>
    4. 

  4. 	<meta charset="utf-8">
    5. 

  5. 	<title>BufferAttribute - Three.js Docs</title>
    6. 

  6. 	<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
    7. 

  7. 	<script src="../scripts/highlight.min.js"></script>
    8. 

  8. 	<link type="text/css" rel="stylesheet" href="../styles/highlight-three.css">
    9. 

  9. 	<link type="text/css" rel="stylesheet" href="../styles/page.css">
    10. 

  10. </head>
    11. 

  11. <body>
    12. 

  12. 	<h1 translate="no">BufferAttribute</h1>
    13. 

  13. 		<section>
    14. 

  14. 			<header>
    15. 

  15. 				<div class="class-description"><p>This class stores data for an attribute (such as vertex positions, face
    16. 

  16. indices, normals, colors, UVs, and any custom attributes ) associated with
    17. 

  17. a geometry, which allows for more efficient passing of data to the GPU.</p>
    18. 

  18. <p>When working with vector-like data, the <code>fromBufferAttribute( attribute, index )</code>
    19. 

  19. helper methods on vector and color class might be helpful. E.g. <a href="Vector3.html#fromBufferAttribute">Vector3#fromBufferAttribute</a>.</p></div>
    20. 

  20. 			</header>
    21. 

  21. 			<article>
    22. 

  22. 				<div class="container-overview">
    23. 

  23. 					<h2>Constructor</h2>
    24. 

  24. 					<h3 class="name name-method" id="BufferAttribute" translate="no">new <a href="#BufferAttribute">BufferAttribute</a><span class="signature">( array : <span class="param-type">TypedArray</span>, itemSize : <span class="param-type">number</span>, normalized : <span class="param-type">boolean</span> )</span> </h3>
    25. 

  25. 					<div class="method">
    26. 

  26. 						<div class="description">
    27. 

  27. 							<p>Constructs a new buffer attribute.</p>
    28. 

  28. 						</div>
    29. 

  29. 						<table class="params">
    30. 

  30. 							<tbody>
    31. 

  31. 								<tr>
    32. 

  32. 									<td class="name">
    33. 

  33. 										<strong translate="no">array</strong>
    34. 

  34. 									</td>
    35. 

  35. 									<td class="description last">
    36. 

  36. 										<p>The array holding the attribute data.</p>
    37. 

  37. 									</td>
    38. 

  38. 								</tr>
    39. 

  39. 								<tr>
    40. 

  40. 									<td class="name">
    41. 

  41. 										<strong translate="no">itemSize</strong>
    42. 

  42. 									</td>
    43. 

  43. 									<td class="description last">
    44. 

  44. 										<p>The item size.</p>
    45. 

  45. 									</td>
    46. 

  46. 								</tr>
    47. 

  47. 								<tr>
    48. 

  48. 									<td class="name">
    49. 

  49. 										<strong translate="no">normalized</strong>
    50. 

  50. 									</td>
    51. 

  51. 									<td class="description last">
    52. 

  52. 										<p>Whether the data are normalized or not.</p>
    53. 

  53. 										<p>Default is <code>false</code>.</p>
    54. 

  54. 									</td>
    55. 

  55. 								</tr>
    56. 

  56. 							</tbody>
    57. 

  57. 						</table>
    58. 

  58. 					</div>
    59. 

  59. 				</div>
    60. 

  60. 				<h2 class="subsection-title">Properties</h2>
    61. 

  61. 				<div class="member">
    62. 

  62. 					<h3 class="name" id="array" translate="no">.<a href="#array">array</a><span class="type-signature"> : TypedArray</span> </h3>
    63. 

  63. 					<div class="description">
    64. 

  64. 						<p>The array holding the attribute data. It should have <code>itemSize * numVertices</code>
    65. 

  65. elements, where <code>numVertices</code> is the number of vertices in the associated geometry.</p>
    66. 

  66. 					</div>
    67. 

  67. 				</div>
    68. 

  68. 				<div class="member">
    69. 

  69. 					<h3 class="name" id="count" translate="no">.<a href="#count">count</a><span class="type-signature"> : number</span> <span class="type-signature">(readonly) </span></h3>
    70. 

  70. 					<div class="description">
    71. 

  71. 						<p>Represents the number of items this buffer attribute stores. It is internally computed
    72. 

  72. by dividing the <code>array</code> length by the <code>itemSize</code>.</p>
    73. 

  73. 					</div>
    74. 

  74. 				</div>
    75. 

  75. 				<div class="member">
    76. 

  76. 					<h3 class="name" id="gpuType" translate="no">.<a href="#gpuType">gpuType</a><span class="type-signature"> : <a href="global.html#FloatType">FloatType</a> | <a href="global.html#IntType">IntType</a></span> </h3>
    77. 

  77. 					<div class="description">
    78. 

  78. 						<p>Configures the bound GPU type for use in shaders.</p>
    79. 

  79. <p>Note: this only has an effect for integer arrays and is not configurable for float arrays.
    80. 

  80. For lower precision float types, use <code>Float16BufferAttribute</code>.</p>
    81. 

  81. 						<p>Default is <code>FloatType</code>.</p>
    82. 

  82. 					</div>
    83. 

  83. 				</div>
    84. 

  84. 				<div class="member">
    85. 

  85. 					<h3 class="name" id="id" translate="no">.<a href="#id">id</a><span class="type-signature"> : number</span> <span class="type-signature">(readonly) </span></h3>
    86. 

  86. 					<div class="description">
    87. 

  87. 						<p>The ID of the buffer attribute.</p>
    88. 

  88. 					</div>
    89. 

  89. 				</div>
    90. 

  90. 				<div class="member">
    91. 

  91. 					<h3 class="name" id="isBufferAttribute" translate="no">.<a href="#isBufferAttribute">isBufferAttribute</a><span class="type-signature"> : boolean</span> <span class="type-signature">(readonly) </span></h3>
    92. 

  92. 					<div class="description">
    93. 

  93. 						<p>This flag can be used for type testing.</p>
    94. 

  94. 						<p>Default is <code>true</code>.</p>
    95. 

  95. 					</div>
    96. 

  96. 				</div>
    97. 

  97. 				<div class="member">
    98. 

  98. 					<h3 class="name" id="itemSize" translate="no">.<a href="#itemSize">itemSize</a><span class="type-signature"> : number</span> </h3>
    99. 

  99. 					<div class="description">
    100. 

  100. 						<p>The number of values of the array that should be associated with a particular vertex.
    101. 

  101. For instance, if this attribute is storing a 3-component vector (such as a position,
    102. 

  102. normal, or color), then the value should be <code>3</code>.</p>
    103. 

  103. 					</div>
    104. 

  104. 				</div>
    105. 

  105. 				<div class="member">
    106. 

  106. 					<h3 class="name" id="name" translate="no">.<a href="#name">name</a><span class="type-signature"> : string</span> </h3>
    107. 

  107. 					<div class="description">
    108. 

  108. 						<p>The name of the buffer attribute.</p>
    109. 

  109. 					</div>
    110. 

  110. 				</div>
    111. 

  111. 				<div class="member">
    112. 

  112. 					<h3 class="name" id="needsUpdate" translate="no">.<a href="#needsUpdate">needsUpdate</a><span class="type-signature"> : number</span> </h3>
    113. 

  113. 					<div class="description">
    114. 

  114. 						<p>Flag to indicate that this attribute has changed and should be re-sent to
    115. 

  115. the GPU. Set this to <code>true</code> when you modify the value of the array.</p>
    116. 

  116. 						<p>Default is <code>false</code>.</p>
    117. 

  117. 					</div>
    118. 

  118. 				</div>
    119. 

  119. 				<div class="member">
    120. 

  120. 					<h3 class="name" id="normalized" translate="no">.<a href="#normalized">normalized</a><span class="type-signature"> : boolean</span> </h3>
    121. 

  121. 					<div class="description">
    122. 

  122. 						<p>Applies to integer data only. Indicates how the underlying data in the buffer maps to
    123. 

  123. the values in the GLSL code. For instance, if <code>array</code> is an instance of <code>UInt16Array</code>,
    124. 

  124. and <code>normalized</code> is <code>true</code>, the values <code>0 - +65535</code> in the array data will be mapped to
    125. 

  125. <code>0.0f - +1.0f</code> in the GLSL attribute. If <code>normalized</code> is <code>false</code>, the values will be converted
    126. 

  126. to floats unmodified, i.e. <code>65535</code> becomes <code>65535.0f</code>.</p>
    127. 

  127. 					</div>
    128. 

  128. 				</div>
    129. 

  129. 				<div class="member">
    130. 

  130. 					<h3 class="name" id="updateRanges" translate="no">.<a href="#updateRanges">updateRanges</a><span class="type-signature"> : Array.&lt;Object></span> </h3>
    131. 

  131. 					<div class="description">
    132. 

  132. 						<p>This can be used to only update some components of stored vectors (for example, just the
    133. 

  133. component related to color). Use the <code>addUpdateRange()</code> function to add ranges to this array.</p>
    134. 

  134. 					</div>
    135. 

  135. 				</div>
    136. 

  136. 				<div class="member">
    137. 

  137. 					<h3 class="name" id="usage" translate="no">.<a href="#usage">usage</a><span class="type-signature"> : <a href="global.html#StaticDrawUsage">StaticDrawUsage</a> | <a href="global.html#DynamicDrawUsage">DynamicDrawUsage</a> | <a href="global.html#StreamDrawUsage">StreamDrawUsage</a> | <a href="global.html#StaticReadUsage">StaticReadUsage</a> | <a href="global.html#DynamicReadUsage">DynamicReadUsage</a> | <a href="global.html#StreamReadUsage">StreamReadUsage</a> | <a href="global.html#StaticCopyUsage">StaticCopyUsage</a> | <a href="global.html#DynamicCopyUsage">DynamicCopyUsage</a> | <a href="global.html#StreamCopyUsage">StreamCopyUsage</a></span> </h3>
    138. 

  138. 					<div class="description">
    139. 

  139. 						<p>Defines the intended usage pattern of the data store for optimization purposes.</p>
    140. 

  140. <p>Note: After the initial use of a buffer, its usage cannot be changed. Instead,
    141. 

  141. instantiate a new one and set the desired usage before the next render.</p>
    142. 

  142. 						<p>Default is <code>StaticDrawUsage</code>.</p>
    143. 

  143. 					</div>
    144. 

  144. 				</div>
    145. 

  145. 				<div class="member">
    146. 

  146. 					<h3 class="name" id="version" translate="no">.<a href="#version">version</a><span class="type-signature"> : number</span> </h3>
    147. 

  147. 					<div class="description">
    148. 

  148. 						<p>A version number, incremented every time the <code>needsUpdate</code> is set to <code>true</code>.</p>
    149. 

  149. 					</div>
    150. 

  150. 				</div>
    151. 

  151. 				<h2 class="subsection-title">Methods</h2>
    152. 

  152. 					<h3 class="name name-method" id="addUpdateRange" translate="no">.<a href="#addUpdateRange">addUpdateRange</a><span class="signature">( start : <span class="param-type">number</span>, count : <span class="param-type">number</span> )</span> </h3>
    153. 

  153. 					<div class="method">
    154. 

  154. 						<div class="description">
    155. 

  155. 							<p>Adds a range of data in the data array to be updated on the GPU.</p>
    156. 

  156. 						</div>
    157. 

  157. 						<table class="params">
    158. 

  158. 							<tbody>
    159. 

  159. 								<tr>
    160. 

  160. 									<td class="name">
    161. 

  161. 										<strong translate="no">start</strong>
    162. 

  162. 									</td>
    163. 

  163. 									<td class="description last">
    164. 

  164. 										<p>Position at which to start update.</p>
    165. 

  165. 									</td>
    166. 

  166. 								</tr>
    167. 

  167. 								<tr>
    168. 

  168. 									<td class="name">
    169. 

  169. 										<strong translate="no">count</strong>
    170. 

  170. 									</td>
    171. 

  171. 									<td class="description last">
    172. 

  172. 										<p>The number of components to update.</p>
    173. 

  173. 									</td>
    174. 

  174. 								</tr>
    175. 

  175. 							</tbody>
    176. 

  176. 						</table>
    177. 

  177. 					</div>
    178. 

  178. 					<h3 class="name name-method" id="applyMatrix3" translate="no">.<a href="#applyMatrix3">applyMatrix3</a><span class="signature">( m : <span class="param-type"><a href="Matrix3.html">Matrix3</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    179. 

  179. 					<div class="method">
    180. 

  180. 						<div class="description">
    181. 

  181. 							<p>Applies the given 3x3 matrix to the given attribute. Works with
    182. 

  182. item size <code>2</code> and <code>3</code>.</p>
    183. 

  183. 						</div>
    184. 

  184. 						<table class="params">
    185. 

  185. 							<tbody>
    186. 

  186. 								<tr>
    187. 

  187. 									<td class="name">
    188. 

  188. 										<strong translate="no">m</strong>
    189. 

  189. 									</td>
    190. 

  190. 									<td class="description last">
    191. 

  191. 										<p>The matrix to apply.</p>
    192. 

  192. 									</td>
    193. 

  193. 								</tr>
    194. 

  194. 							</tbody>
    195. 

  195. 						</table>
    196. 

  196. 						<dl class="details">
    197. 

  197. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    198. 

  198. 						</dl>
    199. 

  199. 					</div>
    200. 

  200. 					<h3 class="name name-method" id="applyMatrix4" translate="no">.<a href="#applyMatrix4">applyMatrix4</a><span class="signature">( m : <span class="param-type"><a href="Matrix4.html">Matrix4</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    201. 

  201. 					<div class="method">
    202. 

  202. 						<div class="description">
    203. 

  203. 							<p>Applies the given 4x4 matrix to the given attribute. Only works with
    204. 

  204. item size <code>3</code>.</p>
    205. 

  205. 						</div>
    206. 

  206. 						<table class="params">
    207. 

  207. 							<tbody>
    208. 

  208. 								<tr>
    209. 

  209. 									<td class="name">
    210. 

  210. 										<strong translate="no">m</strong>
    211. 

  211. 									</td>
    212. 

  212. 									<td class="description last">
    213. 

  213. 										<p>The matrix to apply.</p>
    214. 

  214. 									</td>
    215. 

  215. 								</tr>
    216. 

  216. 							</tbody>
    217. 

  217. 						</table>
    218. 

  218. 						<dl class="details">
    219. 

  219. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    220. 

  220. 						</dl>
    221. 

  221. 					</div>
    222. 

  222. 					<h3 class="name name-method" id="applyNormalMatrix" translate="no">.<a href="#applyNormalMatrix">applyNormalMatrix</a><span class="signature">( m : <span class="param-type"><a href="Matrix3.html">Matrix3</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    223. 

  223. 					<div class="method">
    224. 

  224. 						<div class="description">
    225. 

  225. 							<p>Applies the given 3x3 normal matrix to the given attribute. Only works with
    226. 

  226. item size <code>3</code>.</p>
    227. 

  227. 						</div>
    228. 

  228. 						<table class="params">
    229. 

  229. 							<tbody>
    230. 

  230. 								<tr>
    231. 

  231. 									<td class="name">
    232. 

  232. 										<strong translate="no">m</strong>
    233. 

  233. 									</td>
    234. 

  234. 									<td class="description last">
    235. 

  235. 										<p>The normal matrix to apply.</p>
    236. 

  236. 									</td>
    237. 

  237. 								</tr>
    238. 

  238. 							</tbody>
    239. 

  239. 						</table>
    240. 

  240. 						<dl class="details">
    241. 

  241. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    242. 

  242. 						</dl>
    243. 

  243. 					</div>
    244. 

  244. 					<h3 class="name name-method" id="clearUpdateRanges" translate="no">.<a href="#clearUpdateRanges">clearUpdateRanges</a><span class="signature">()</span> </h3>
    245. 

  245. 					<div class="method">
    246. 

  246. 						<div class="description">
    247. 

  247. 							<p>Clears the update ranges.</p>
    248. 

  248. 						</div>
    249. 

  249. 					</div>
    250. 

  250. 					<h3 class="name name-method" id="clone" translate="no">.<a href="#clone">clone</a><span class="signature">()</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    251. 

  251. 					<div class="method">
    252. 

  252. 						<div class="description">
    253. 

  253. 							<p>Returns a new buffer attribute with copied values from this instance.</p>
    254. 

  254. 						</div>
    255. 

  255. 						<dl class="details">
    256. 

  256. 							<dt class="tag-returns"><strong>Returns:</strong> A clone of this instance.</dt>
    257. 

  257. 						</dl>
    258. 

  258. 					</div>
    259. 

  259. 					<h3 class="name name-method" id="copy" translate="no">.<a href="#copy">copy</a><span class="signature">( source : <span class="param-type"><a href="BufferAttribute.html">BufferAttribute</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    260. 

  260. 					<div class="method">
    261. 

  261. 						<div class="description">
    262. 

  262. 							<p>Copies the values of the given buffer attribute to this instance.</p>
    263. 

  263. 						</div>
    264. 

  264. 						<table class="params">
    265. 

  265. 							<tbody>
    266. 

  266. 								<tr>
    267. 

  267. 									<td class="name">
    268. 

  268. 										<strong translate="no">source</strong>
    269. 

  269. 									</td>
    270. 

  270. 									<td class="description last">
    271. 

  271. 										<p>The buffer attribute to copy.</p>
    272. 

  272. 									</td>
    273. 

  273. 								</tr>
    274. 

  274. 							</tbody>
    275. 

  275. 						</table>
    276. 

  276. 						<dl class="details">
    277. 

  277. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    278. 

  278. 						</dl>
    279. 

  279. 					</div>
    280. 

  280. 					<h3 class="name name-method" id="copyArray" translate="no">.<a href="#copyArray">copyArray</a><span class="signature">( array : <span class="param-type">TypedArray | Array</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    281. 

  281. 					<div class="method">
    282. 

  282. 						<div class="description">
    283. 

  283. 							<p>Copies the given array data into this buffer attribute.</p>
    284. 

  284. 						</div>
    285. 

  285. 						<table class="params">
    286. 

  286. 							<tbody>
    287. 

  287. 								<tr>
    288. 

  288. 									<td class="name">
    289. 

  289. 										<strong translate="no">array</strong>
    290. 

  290. 									</td>
    291. 

  291. 									<td class="description last">
    292. 

  292. 										<p>The array to copy.</p>
    293. 

  293. 									</td>
    294. 

  294. 								</tr>
    295. 

  295. 							</tbody>
    296. 

  296. 						</table>
    297. 

  297. 						<dl class="details">
    298. 

  298. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    299. 

  299. 						</dl>
    300. 

  300. 					</div>
    301. 

  301. 					<h3 class="name name-method" id="copyAt" translate="no">.<a href="#copyAt">copyAt</a><span class="signature">( index1 : <span class="param-type">number</span>, attribute : <span class="param-type"><a href="BufferAttribute.html">BufferAttribute</a></span>, index2 : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    302. 

  302. 					<div class="method">
    303. 

  303. 						<div class="description">
    304. 

  304. 							<p>Copies a vector from the given buffer attribute to this one. The start
    305. 

  305. and destination position in the attribute buffers are represented by the
    306. 

  306. given indices.</p>
    307. 

  307. 						</div>
    308. 

  308. 						<table class="params">
    309. 

  309. 							<tbody>
    310. 

  310. 								<tr>
    311. 

  311. 									<td class="name">
    312. 

  312. 										<strong translate="no">index1</strong>
    313. 

  313. 									</td>
    314. 

  314. 									<td class="description last">
    315. 

  315. 										<p>The destination index into this buffer attribute.</p>
    316. 

  316. 									</td>
    317. 

  317. 								</tr>
    318. 

  318. 								<tr>
    319. 

  319. 									<td class="name">
    320. 

  320. 										<strong translate="no">attribute</strong>
    321. 

  321. 									</td>
    322. 

  322. 									<td class="description last">
    323. 

  323. 										<p>The buffer attribute to copy from.</p>
    324. 

  324. 									</td>
    325. 

  325. 								</tr>
    326. 

  326. 								<tr>
    327. 

  327. 									<td class="name">
    328. 

  328. 										<strong translate="no">index2</strong>
    329. 

  329. 									</td>
    330. 

  330. 									<td class="description last">
    331. 

  331. 										<p>The source index into the given buffer attribute.</p>
    332. 

  332. 									</td>
    333. 

  333. 								</tr>
    334. 

  334. 							</tbody>
    335. 

  335. 						</table>
    336. 

  336. 						<dl class="details">
    337. 

  337. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    338. 

  338. 						</dl>
    339. 

  339. 					</div>
    340. 

  340. 					<h3 class="name name-method" id="dispose" translate="no">.<a href="#dispose">dispose</a><span class="signature">()</span> </h3>
    341. 

  341. 					<div class="method">
    342. 

  342. 						<div class="description">
    343. 

  343. 							<p>Disposes of the buffer attribute. Available only in <a href="WebGPURenderer.html">WebGPURenderer</a>.</p>
    344. 

  344. 						</div>
    345. 

  345. 					</div>
    346. 

  346. 					<h3 class="name name-method" id="getComponent" translate="no">.<a href="#getComponent">getComponent</a><span class="signature">( index : <span class="param-type">number</span>, component : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> </h3>
    347. 

  347. 					<div class="method">
    348. 

  348. 						<div class="description">
    349. 

  349. 							<p>Returns the given component of the vector at the given index.</p>
    350. 

  350. 						</div>
    351. 

  351. 						<table class="params">
    352. 

  352. 							<tbody>
    353. 

  353. 								<tr>
    354. 

  354. 									<td class="name">
    355. 

  355. 										<strong translate="no">index</strong>
    356. 

  356. 									</td>
    357. 

  357. 									<td class="description last">
    358. 

  358. 										<p>The index into the buffer attribute.</p>
    359. 

  359. 									</td>
    360. 

  360. 								</tr>
    361. 

  361. 								<tr>
    362. 

  362. 									<td class="name">
    363. 

  363. 										<strong translate="no">component</strong>
    364. 

  364. 									</td>
    365. 

  365. 									<td class="description last">
    366. 

  366. 										<p>The component index.</p>
    367. 

  367. 									</td>
    368. 

  368. 								</tr>
    369. 

  369. 							</tbody>
    370. 

  370. 						</table>
    371. 

  371. 						<dl class="details">
    372. 

  372. 							<dt class="tag-returns"><strong>Returns:</strong> The returned value.</dt>
    373. 

  373. 						</dl>
    374. 

  374. 					</div>
    375. 

  375. 					<h3 class="name name-method" id="getW" translate="no">.<a href="#getW">getW</a><span class="signature">( index : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> </h3>
    376. 

  376. 					<div class="method">
    377. 

  377. 						<div class="description">
    378. 

  378. 							<p>Returns the w component of the vector at the given index.</p>
    379. 

  379. 						</div>
    380. 

  380. 						<table class="params">
    381. 

  381. 							<tbody>
    382. 

  382. 								<tr>
    383. 

  383. 									<td class="name">
    384. 

  384. 										<strong translate="no">index</strong>
    385. 

  385. 									</td>
    386. 

  386. 									<td class="description last">
    387. 

  387. 										<p>The index into the buffer attribute.</p>
    388. 

  388. 									</td>
    389. 

  389. 								</tr>
    390. 

  390. 							</tbody>
    391. 

  391. 						</table>
    392. 

  392. 						<dl class="details">
    393. 

  393. 							<dt class="tag-returns"><strong>Returns:</strong> The w component.</dt>
    394. 

  394. 						</dl>
    395. 

  395. 					</div>
    396. 

  396. 					<h3 class="name name-method" id="getX" translate="no">.<a href="#getX">getX</a><span class="signature">( index : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> </h3>
    397. 

  397. 					<div class="method">
    398. 

  398. 						<div class="description">
    399. 

  399. 							<p>Returns the x component of the vector at the given index.</p>
    400. 

  400. 						</div>
    401. 

  401. 						<table class="params">
    402. 

  402. 							<tbody>
    403. 

  403. 								<tr>
    404. 

  404. 									<td class="name">
    405. 

  405. 										<strong translate="no">index</strong>
    406. 

  406. 									</td>
    407. 

  407. 									<td class="description last">
    408. 

  408. 										<p>The index into the buffer attribute.</p>
    409. 

  409. 									</td>
    410. 

  410. 								</tr>
    411. 

  411. 							</tbody>
    412. 

  412. 						</table>
    413. 

  413. 						<dl class="details">
    414. 

  414. 							<dt class="tag-returns"><strong>Returns:</strong> The x component.</dt>
    415. 

  415. 						</dl>
    416. 

  416. 					</div>
    417. 

  417. 					<h3 class="name name-method" id="getY" translate="no">.<a href="#getY">getY</a><span class="signature">( index : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> </h3>
    418. 

  418. 					<div class="method">
    419. 

  419. 						<div class="description">
    420. 

  420. 							<p>Returns the y component of the vector at the given index.</p>
    421. 

  421. 						</div>
    422. 

  422. 						<table class="params">
    423. 

  423. 							<tbody>
    424. 

  424. 								<tr>
    425. 

  425. 									<td class="name">
    426. 

  426. 										<strong translate="no">index</strong>
    427. 

  427. 									</td>
    428. 

  428. 									<td class="description last">
    429. 

  429. 										<p>The index into the buffer attribute.</p>
    430. 

  430. 									</td>
    431. 

  431. 								</tr>
    432. 

  432. 							</tbody>
    433. 

  433. 						</table>
    434. 

  434. 						<dl class="details">
    435. 

  435. 							<dt class="tag-returns"><strong>Returns:</strong> The y component.</dt>
    436. 

  436. 						</dl>
    437. 

  437. 					</div>
    438. 

  438. 					<h3 class="name name-method" id="getZ" translate="no">.<a href="#getZ">getZ</a><span class="signature">( index : <span class="param-type">number</span> )</span><span class="type-signature"> : number</span> </h3>
    439. 

  439. 					<div class="method">
    440. 

  440. 						<div class="description">
    441. 

  441. 							<p>Returns the z component of the vector at the given index.</p>
    442. 

  442. 						</div>
    443. 

  443. 						<table class="params">
    444. 

  444. 							<tbody>
    445. 

  445. 								<tr>
    446. 

  446. 									<td class="name">
    447. 

  447. 										<strong translate="no">index</strong>
    448. 

  448. 									</td>
    449. 

  449. 									<td class="description last">
    450. 

  450. 										<p>The index into the buffer attribute.</p>
    451. 

  451. 									</td>
    452. 

  452. 								</tr>
    453. 

  453. 							</tbody>
    454. 

  454. 						</table>
    455. 

  455. 						<dl class="details">
    456. 

  456. 							<dt class="tag-returns"><strong>Returns:</strong> The z component.</dt>
    457. 

  457. 						</dl>
    458. 

  458. 					</div>
    459. 

  459. 					<h3 class="name name-method" id="onUpload" translate="no">.<a href="#onUpload">onUpload</a><span class="signature">( callback : <span class="param-type">function</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    460. 

  460. 					<div class="method">
    461. 

  461. 						<div class="description">
    462. 

  462. 							<p>Sets the given callback function that is executed after the Renderer has transferred
    463. 

  463. the attribute array data to the GPU. Can be used to perform clean-up operations after
    464. 

  464. the upload when attribute data are not needed anymore on the CPU side.</p>
    465. 

  465. 						</div>
    466. 

  466. 						<table class="params">
    467. 

  467. 							<tbody>
    468. 

  468. 								<tr>
    469. 

  469. 									<td class="name">
    470. 

  470. 										<strong translate="no">callback</strong>
    471. 

  471. 									</td>
    472. 

  472. 									<td class="description last">
    473. 

  473. 										<p>The <code>onUpload()</code> callback.</p>
    474. 

  474. 									</td>
    475. 

  475. 								</tr>
    476. 

  476. 							</tbody>
    477. 

  477. 						</table>
    478. 

  478. 						<dl class="details">
    479. 

  479. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    480. 

  480. 						</dl>
    481. 

  481. 					</div>
    482. 

  482. 					<h3 class="name name-method" id="onUploadCallback" translate="no">.<a href="#onUploadCallback">onUploadCallback</a><span class="signature">()</span> </h3>
    483. 

  483. 					<div class="method">
    484. 

  484. 						<div class="description">
    485. 

  485. 							<p>A callback function that is executed after the renderer has transferred the attribute
    486. 

  486. array data to the GPU.</p>
    487. 

  487. 						</div>
    488. 

  488. 					</div>
    489. 

  489. 					<h3 class="name name-method" id="set" translate="no">.<a href="#set">set</a><span class="signature">( value : <span class="param-type">TypedArray | Array</span>, offset : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    490. 

  490. 					<div class="method">
    491. 

  491. 						<div class="description">
    492. 

  492. 							<p>Sets the given array data in the buffer attribute.</p>
    493. 

  493. 						</div>
    494. 

  494. 						<table class="params">
    495. 

  495. 							<tbody>
    496. 

  496. 								<tr>
    497. 

  497. 									<td class="name">
    498. 

  498. 										<strong translate="no">value</strong>
    499. 

  499. 									</td>
    500. 

  500. 									<td class="description last">
    501. 

  501. 										<p>The array data to set.</p>
    502. 

  502. 									</td>
    503. 

  503. 								</tr>
    504. 

  504. 								<tr>
    505. 

  505. 									<td class="name">
    506. 

  506. 										<strong translate="no">offset</strong>
    507. 

  507. 									</td>
    508. 

  508. 									<td class="description last">
    509. 

  509. 										<p>The offset in this buffer attribute's array.</p>
    510. 

  510. 										<p>Default is <code>0</code>.</p>
    511. 

  511. 									</td>
    512. 

  512. 								</tr>
    513. 

  513. 							</tbody>
    514. 

  514. 						</table>
    515. 

  515. 						<dl class="details">
    516. 

  516. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    517. 

  517. 						</dl>
    518. 

  518. 					</div>
    519. 

  519. 					<h3 class="name name-method" id="setComponent" translate="no">.<a href="#setComponent">setComponent</a><span class="signature">( index : <span class="param-type">number</span>, component : <span class="param-type">number</span>, value : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    520. 

  520. 					<div class="method">
    521. 

  521. 						<div class="description">
    522. 

  522. 							<p>Sets the given value to the given component of the vector at the given index.</p>
    523. 

  523. 						</div>
    524. 

  524. 						<table class="params">
    525. 

  525. 							<tbody>
    526. 

  526. 								<tr>
    527. 

  527. 									<td class="name">
    528. 

  528. 										<strong translate="no">index</strong>
    529. 

  529. 									</td>
    530. 

  530. 									<td class="description last">
    531. 

  531. 										<p>The index into the buffer attribute.</p>
    532. 

  532. 									</td>
    533. 

  533. 								</tr>
    534. 

  534. 								<tr>
    535. 

  535. 									<td class="name">
    536. 

  536. 										<strong translate="no">component</strong>
    537. 

  537. 									</td>
    538. 

  538. 									<td class="description last">
    539. 

  539. 										<p>The component index.</p>
    540. 

  540. 									</td>
    541. 

  541. 								</tr>
    542. 

  542. 								<tr>
    543. 

  543. 									<td class="name">
    544. 

  544. 										<strong translate="no">value</strong>
    545. 

  545. 									</td>
    546. 

  546. 									<td class="description last">
    547. 

  547. 										<p>The value to set.</p>
    548. 

  548. 									</td>
    549. 

  549. 								</tr>
    550. 

  550. 							</tbody>
    551. 

  551. 						</table>
    552. 

  552. 						<dl class="details">
    553. 

  553. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    554. 

  554. 						</dl>
    555. 

  555. 					</div>
    556. 

  556. 					<h3 class="name name-method" id="setUsage" translate="no">.<a href="#setUsage">setUsage</a><span class="signature">( value : <span class="param-type"><a href="global.html#StaticDrawUsage">StaticDrawUsage</a> | <a href="global.html#DynamicDrawUsage">DynamicDrawUsage</a> | <a href="global.html#StreamDrawUsage">StreamDrawUsage</a> | <a href="global.html#StaticReadUsage">StaticReadUsage</a> | <a href="global.html#DynamicReadUsage">DynamicReadUsage</a> | <a href="global.html#StreamReadUsage">StreamReadUsage</a> | <a href="global.html#StaticCopyUsage">StaticCopyUsage</a> | <a href="global.html#DynamicCopyUsage">DynamicCopyUsage</a> | <a href="global.html#StreamCopyUsage">StreamCopyUsage</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    557. 

  557. 					<div class="method">
    558. 

  558. 						<div class="description">
    559. 

  559. 							<p>Sets the usage of this buffer attribute.</p>
    560. 

  560. 						</div>
    561. 

  561. 						<table class="params">
    562. 

  562. 							<tbody>
    563. 

  563. 								<tr>
    564. 

  564. 									<td class="name">
    565. 

  565. 										<strong translate="no">value</strong>
    566. 

  566. 									</td>
    567. 

  567. 									<td class="description last">
    568. 

  568. 										<p>The usage to set.</p>
    569. 

  569. 									</td>
    570. 

  570. 								</tr>
    571. 

  571. 							</tbody>
    572. 

  572. 						</table>
    573. 

  573. 						<dl class="details">
    574. 

  574. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this buffer attribute.</dt>
    575. 

  575. 						</dl>
    576. 

  576. 					</div>
    577. 

  577. 					<h3 class="name name-method" id="setW" translate="no">.<a href="#setW">setW</a><span class="signature">( index : <span class="param-type">number</span>, w : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    578. 

  578. 					<div class="method">
    579. 

  579. 						<div class="description">
    580. 

  580. 							<p>Sets the w component of the vector at the given index.</p>
    581. 

  581. 						</div>
    582. 

  582. 						<table class="params">
    583. 

  583. 							<tbody>
    584. 

  584. 								<tr>
    585. 

  585. 									<td class="name">
    586. 

  586. 										<strong translate="no">index</strong>
    587. 

  587. 									</td>
    588. 

  588. 									<td class="description last">
    589. 

  589. 										<p>The index into the buffer attribute.</p>
    590. 

  590. 									</td>
    591. 

  591. 								</tr>
    592. 

  592. 								<tr>
    593. 

  593. 									<td class="name">
    594. 

  594. 										<strong translate="no">w</strong>
    595. 

  595. 									</td>
    596. 

  596. 									<td class="description last">
    597. 

  597. 										<p>The value to set.</p>
    598. 

  598. 									</td>
    599. 

  599. 								</tr>
    600. 

  600. 							</tbody>
    601. 

  601. 						</table>
    602. 

  602. 						<dl class="details">
    603. 

  603. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    604. 

  604. 						</dl>
    605. 

  605. 					</div>
    606. 

  606. 					<h3 class="name name-method" id="setX" translate="no">.<a href="#setX">setX</a><span class="signature">( index : <span class="param-type">number</span>, x : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    607. 

  607. 					<div class="method">
    608. 

  608. 						<div class="description">
    609. 

  609. 							<p>Sets the x component of the vector at the given index.</p>
    610. 

  610. 						</div>
    611. 

  611. 						<table class="params">
    612. 

  612. 							<tbody>
    613. 

  613. 								<tr>
    614. 

  614. 									<td class="name">
    615. 

  615. 										<strong translate="no">index</strong>
    616. 

  616. 									</td>
    617. 

  617. 									<td class="description last">
    618. 

  618. 										<p>The index into the buffer attribute.</p>
    619. 

  619. 									</td>
    620. 

  620. 								</tr>
    621. 

  621. 								<tr>
    622. 

  622. 									<td class="name">
    623. 

  623. 										<strong translate="no">x</strong>
    624. 

  624. 									</td>
    625. 

  625. 									<td class="description last">
    626. 

  626. 										<p>The value to set.</p>
    627. 

  627. 									</td>
    628. 

  628. 								</tr>
    629. 

  629. 							</tbody>
    630. 

  630. 						</table>
    631. 

  631. 						<dl class="details">
    632. 

  632. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    633. 

  633. 						</dl>
    634. 

  634. 					</div>
    635. 

  635. 					<h3 class="name name-method" id="setXY" translate="no">.<a href="#setXY">setXY</a><span class="signature">( index : <span class="param-type">number</span>, x : <span class="param-type">number</span>, y : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    636. 

  636. 					<div class="method">
    637. 

  637. 						<div class="description">
    638. 

  638. 							<p>Sets the x and y component of the vector at the given index.</p>
    639. 

  639. 						</div>
    640. 

  640. 						<table class="params">
    641. 

  641. 							<tbody>
    642. 

  642. 								<tr>
    643. 

  643. 									<td class="name">
    644. 

  644. 										<strong translate="no">index</strong>
    645. 

  645. 									</td>
    646. 

  646. 									<td class="description last">
    647. 

  647. 										<p>The index into the buffer attribute.</p>
    648. 

  648. 									</td>
    649. 

  649. 								</tr>
    650. 

  650. 								<tr>
    651. 

  651. 									<td class="name">
    652. 

  652. 										<strong translate="no">x</strong>
    653. 

  653. 									</td>
    654. 

  654. 									<td class="description last">
    655. 

  655. 										<p>The value for the x component to set.</p>
    656. 

  656. 									</td>
    657. 

  657. 								</tr>
    658. 

  658. 								<tr>
    659. 

  659. 									<td class="name">
    660. 

  660. 										<strong translate="no">y</strong>
    661. 

  661. 									</td>
    662. 

  662. 									<td class="description last">
    663. 

  663. 										<p>The value for the y component to set.</p>
    664. 

  664. 									</td>
    665. 

  665. 								</tr>
    666. 

  666. 							</tbody>
    667. 

  667. 						</table>
    668. 

  668. 						<dl class="details">
    669. 

  669. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    670. 

  670. 						</dl>
    671. 

  671. 					</div>
    672. 

  672. 					<h3 class="name name-method" id="setXYZ" translate="no">.<a href="#setXYZ">setXYZ</a><span class="signature">( index : <span class="param-type">number</span>, x : <span class="param-type">number</span>, y : <span class="param-type">number</span>, z : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    673. 

  673. 					<div class="method">
    674. 

  674. 						<div class="description">
    675. 

  675. 							<p>Sets the x, y and z component of the vector at the given index.</p>
    676. 

  676. 						</div>
    677. 

  677. 						<table class="params">
    678. 

  678. 							<tbody>
    679. 

  679. 								<tr>
    680. 

  680. 									<td class="name">
    681. 

  681. 										<strong translate="no">index</strong>
    682. 

  682. 									</td>
    683. 

  683. 									<td class="description last">
    684. 

  684. 										<p>The index into the buffer attribute.</p>
    685. 

  685. 									</td>
    686. 

  686. 								</tr>
    687. 

  687. 								<tr>
    688. 

  688. 									<td class="name">
    689. 

  689. 										<strong translate="no">x</strong>
    690. 

  690. 									</td>
    691. 

  691. 									<td class="description last">
    692. 

  692. 										<p>The value for the x component to set.</p>
    693. 

  693. 									</td>
    694. 

  694. 								</tr>
    695. 

  695. 								<tr>
    696. 

  696. 									<td class="name">
    697. 

  697. 										<strong translate="no">y</strong>
    698. 

  698. 									</td>
    699. 

  699. 									<td class="description last">
    700. 

  700. 										<p>The value for the y component to set.</p>
    701. 

  701. 									</td>
    702. 

  702. 								</tr>
    703. 

  703. 								<tr>
    704. 

  704. 									<td class="name">
    705. 

  705. 										<strong translate="no">z</strong>
    706. 

  706. 									</td>
    707. 

  707. 									<td class="description last">
    708. 

  708. 										<p>The value for the z component to set.</p>
    709. 

  709. 									</td>
    710. 

  710. 								</tr>
    711. 

  711. 							</tbody>
    712. 

  712. 						</table>
    713. 

  713. 						<dl class="details">
    714. 

  714. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    715. 

  715. 						</dl>
    716. 

  716. 					</div>
    717. 

  717. 					<h3 class="name name-method" id="setXYZW" translate="no">.<a href="#setXYZW">setXYZW</a><span class="signature">( index : <span class="param-type">number</span>, x : <span class="param-type">number</span>, y : <span class="param-type">number</span>, z : <span class="param-type">number</span>, w : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    718. 

  718. 					<div class="method">
    719. 

  719. 						<div class="description">
    720. 

  720. 							<p>Sets the x, y, z and w component of the vector at the given index.</p>
    721. 

  721. 						</div>
    722. 

  722. 						<table class="params">
    723. 

  723. 							<tbody>
    724. 

  724. 								<tr>
    725. 

  725. 									<td class="name">
    726. 

  726. 										<strong translate="no">index</strong>
    727. 

  727. 									</td>
    728. 

  728. 									<td class="description last">
    729. 

  729. 										<p>The index into the buffer attribute.</p>
    730. 

  730. 									</td>
    731. 

  731. 								</tr>
    732. 

  732. 								<tr>
    733. 

  733. 									<td class="name">
    734. 

  734. 										<strong translate="no">x</strong>
    735. 

  735. 									</td>
    736. 

  736. 									<td class="description last">
    737. 

  737. 										<p>The value for the x component to set.</p>
    738. 

  738. 									</td>
    739. 

  739. 								</tr>
    740. 

  740. 								<tr>
    741. 

  741. 									<td class="name">
    742. 

  742. 										<strong translate="no">y</strong>
    743. 

  743. 									</td>
    744. 

  744. 									<td class="description last">
    745. 

  745. 										<p>The value for the y component to set.</p>
    746. 

  746. 									</td>
    747. 

  747. 								</tr>
    748. 

  748. 								<tr>
    749. 

  749. 									<td class="name">
    750. 

  750. 										<strong translate="no">z</strong>
    751. 

  751. 									</td>
    752. 

  752. 									<td class="description last">
    753. 

  753. 										<p>The value for the z component to set.</p>
    754. 

  754. 									</td>
    755. 

  755. 								</tr>
    756. 

  756. 								<tr>
    757. 

  757. 									<td class="name">
    758. 

  758. 										<strong translate="no">w</strong>
    759. 

  759. 									</td>
    760. 

  760. 									<td class="description last">
    761. 

  761. 										<p>The value for the w component to set.</p>
    762. 

  762. 									</td>
    763. 

  763. 								</tr>
    764. 

  764. 							</tbody>
    765. 

  765. 						</table>
    766. 

  766. 						<dl class="details">
    767. 

  767. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    768. 

  768. 						</dl>
    769. 

  769. 					</div>
    770. 

  770. 					<h3 class="name name-method" id="setY" translate="no">.<a href="#setY">setY</a><span class="signature">( index : <span class="param-type">number</span>, y : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    771. 

  771. 					<div class="method">
    772. 

  772. 						<div class="description">
    773. 

  773. 							<p>Sets the y component of the vector at the given index.</p>
    774. 

  774. 						</div>
    775. 

  775. 						<table class="params">
    776. 

  776. 							<tbody>
    777. 

  777. 								<tr>
    778. 

  778. 									<td class="name">
    779. 

  779. 										<strong translate="no">index</strong>
    780. 

  780. 									</td>
    781. 

  781. 									<td class="description last">
    782. 

  782. 										<p>The index into the buffer attribute.</p>
    783. 

  783. 									</td>
    784. 

  784. 								</tr>
    785. 

  785. 								<tr>
    786. 

  786. 									<td class="name">
    787. 

  787. 										<strong translate="no">y</strong>
    788. 

  788. 									</td>
    789. 

  789. 									<td class="description last">
    790. 

  790. 										<p>The value to set.</p>
    791. 

  791. 									</td>
    792. 

  792. 								</tr>
    793. 

  793. 							</tbody>
    794. 

  794. 						</table>
    795. 

  795. 						<dl class="details">
    796. 

  796. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    797. 

  797. 						</dl>
    798. 

  798. 					</div>
    799. 

  799. 					<h3 class="name name-method" id="setZ" translate="no">.<a href="#setZ">setZ</a><span class="signature">( index : <span class="param-type">number</span>, z : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    800. 

  800. 					<div class="method">
    801. 

  801. 						<div class="description">
    802. 

  802. 							<p>Sets the z component of the vector at the given index.</p>
    803. 

  803. 						</div>
    804. 

  804. 						<table class="params">
    805. 

  805. 							<tbody>
    806. 

  806. 								<tr>
    807. 

  807. 									<td class="name">
    808. 

  808. 										<strong translate="no">index</strong>
    809. 

  809. 									</td>
    810. 

  810. 									<td class="description last">
    811. 

  811. 										<p>The index into the buffer attribute.</p>
    812. 

  812. 									</td>
    813. 

  813. 								</tr>
    814. 

  814. 								<tr>
    815. 

  815. 									<td class="name">
    816. 

  816. 										<strong translate="no">z</strong>
    817. 

  817. 									</td>
    818. 

  818. 									<td class="description last">
    819. 

  819. 										<p>The value to set.</p>
    820. 

  820. 									</td>
    821. 

  821. 								</tr>
    822. 

  822. 							</tbody>
    823. 

  823. 						</table>
    824. 

  824. 						<dl class="details">
    825. 

  825. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    826. 

  826. 						</dl>
    827. 

  827. 					</div>
    828. 

  828. 					<h3 class="name name-method" id="toJSON" translate="no">.<a href="#toJSON">toJSON</a><span class="signature">()</span><span class="type-signature"> : Object</span> </h3>
    829. 

  829. 					<div class="method">
    830. 

  830. 						<div class="description">
    831. 

  831. 							<p>Serializes the buffer attribute into JSON.</p>
    832. 

  832. 						</div>
    833. 

  833. 						<dl class="details">
    834. 

  834. 							<dt class="tag-returns"><strong>Returns:</strong> A JSON object representing the serialized buffer attribute.</dt>
    835. 

  835. 						</dl>
    836. 

  836. 					</div>
    837. 

  837. 					<h3 class="name name-method" id="transformDirection" translate="no">.<a href="#transformDirection">transformDirection</a><span class="signature">( m : <span class="param-type"><a href="Matrix4.html">Matrix4</a></span> )</span><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
    838. 

  838. 					<div class="method">
    839. 

  839. 						<div class="description">
    840. 

  840. 							<p>Applies the given 4x4 matrix to the given attribute. Only works with
    841. 

  841. item size <code>3</code> and with direction vectors.</p>
    842. 

  842. 						</div>
    843. 

  843. 						<table class="params">
    844. 

  844. 							<tbody>
    845. 

  845. 								<tr>
    846. 

  846. 									<td class="name">
    847. 

  847. 										<strong translate="no">m</strong>
    848. 

  848. 									</td>
    849. 

  849. 									<td class="description last">
    850. 

  850. 										<p>The matrix to apply.</p>
    851. 

  851. 									</td>
    852. 

  852. 								</tr>
    853. 

  853. 							</tbody>
    854. 

  854. 						</table>
    855. 

  855. 						<dl class="details">
    856. 

  856. 							<dt class="tag-returns"><strong>Returns:</strong> A reference to this instance.</dt>
    857. 

  857. 						</dl>
    858. 

  858. 					</div>
    859. 

  859. 				<h2 class="subsection-title">Source</h2>
    860. 

  860. 				<p>
    861. 

  861. 					<a href="https://github.com/mrdoob/three.js/blob/master/src/core/BufferAttribute.js" translate="no" target="_blank" rel="noopener">src/core/BufferAttribute.js</a>
    862. 

  862. 				</p>
    863. 

  863. 			</article>
    864. 

  864. 		</section>
    865. 

  865. <script src="../scripts/linenumber.js"></script>
    866. 

  866. <script src="../scripts/page.js"></script>
    867. 

  867. </body>
    868. 

  868. </html>
    869.
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