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<!DOCTYPE html>
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<title>VertexFormat - Cesium Documentation</title>
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<div id="main">
<h1 class="page-title">
<a href="index.html"><img src="Images/CesiumLogo.png" class="cesiumLogo"></a>
VertexFormat
<div class="titleCenterer"></div>
</h1>
<section>
<header>
</header>
<article>
<div class="container-overview">
<div class="nameContainer">
<h4 class="name" id="VertexFormat">
<a href="#VertexFormat" class="doc-link"></a>
new Cesium.VertexFormat<span class="signature">(<span class="optional">options</span>)</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L25">Core/VertexFormat.js 25</a>
</div>
</h4>
</div>
<div class="description">
A vertex format defines what attributes make up a vertex. A VertexFormat can be provided
to a <a href="Geometry.html"><code>Geometry</code></a> to request that certain properties be computed, e.g., just position,
position and normal, etc.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>options</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last">
<span class="optional">optional</span>
An object with boolean properties corresponding to VertexFormat properties as shown in the code example.</td>
</tr>
</tbody>
</table>
<dl class="details">
<h5>Example:</h5>
<pre><code class="language-javascript">// Create a vertex format with position and 2D texture coordinate attributes.
const format = new Cesium.VertexFormat({
position : true,
st : true
});</code></pre>
<h5>See:</h5>
<ul class="see-list">
<li><a href="Geometry.html#attributes">Geometry#attributes</a></li>
<li><a href="Packable.html">Packable</a></li>
</ul>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<div class="nameContainer">
<h4 class="name" id=".ALL">
<a href="#.ALL" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.ALL<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L197">Core/VertexFormat.js 197</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with well-known attributes: position, normal, st, tangent, and bitangent.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#normal">VertexFormat#normal</a></li>
<li><a href="VertexFormat.html#st">VertexFormat#st</a></li>
<li><a href="VertexFormat.html#tangent">VertexFormat#tangent</a></li>
<li><a href="VertexFormat.html#bitangent">VertexFormat#bitangent</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".DEFAULT">
<a href="#.DEFAULT" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.DEFAULT<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L219">Core/VertexFormat.js 219</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with position, normal, and st attributes.
This is compatible with most appearances and materials; however
normal and st attributes are not always required. When this is
known in advance, another <code>VertexFormat</code> should be used.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#normal">VertexFormat#normal</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".packedLength">
<a href="#.packedLength" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.VertexFormat.packedLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L225">Core/VertexFormat.js 225</a>
</div>
</h4>
</div>
<div class="description">
The number of elements used to pack the object into an array.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id=".POSITION_AND_COLOR">
<a href="#.POSITION_AND_COLOR" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.POSITION_AND_COLOR<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L178">Core/VertexFormat.js 178</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with position and color attributes.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#color">VertexFormat#color</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".POSITION_AND_NORMAL">
<a href="#.POSITION_AND_NORMAL" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.POSITION_AND_NORMAL<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L125">Core/VertexFormat.js 125</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with position and normal attributes.
This is compatible with per-instance color appearances like <a href="PerInstanceColorAppearance.html"><code>PerInstanceColorAppearance</code></a>.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#normal">VertexFormat#normal</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".POSITION_AND_ST">
<a href="#.POSITION_AND_ST" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.POSITION_AND_ST<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L162">Core/VertexFormat.js 162</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with position and st attributes.
This is compatible with <a href="EllipsoidSurfaceAppearance.html"><code>EllipsoidSurfaceAppearance</code></a>.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#st">VertexFormat#st</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".POSITION_NORMAL_AND_ST">
<a href="#.POSITION_NORMAL_AND_ST" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.POSITION_NORMAL_AND_ST<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L144">Core/VertexFormat.js 144</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with position, normal, and st attributes.
This is compatible with <a href="MaterialAppearance.html"><code>MaterialAppearance</code></a> when <a href="MaterialAppearance.html#materialSupport"><code>MaterialAppearance#materialSupport</code></a>
is <code>TEXTURED/code>.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
<li><a href="VertexFormat.html#normal">VertexFormat#normal</a></li>
<li><a href="VertexFormat.html#st">VertexFormat#st</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id=".POSITION_ONLY">
<a href="#.POSITION_ONLY" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> <span class="type-signature attribute-constant">constant</span> Cesium.VertexFormat.POSITION_ONLY<span class="type-signature"> : <a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L109">Core/VertexFormat.js 109</a>
</div>
</h4>
</div>
<div class="description">
An immutable vertex format with only a position attribute.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="VertexFormat.html#position">VertexFormat#position</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id="bitangent">
<a href="#bitangent" class="doc-link"></a>
bitangent<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L74">Core/VertexFormat.js 74</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has a bitangent attribute (normalized), which is used for tangent-space effects like bump mapping.
<p>
32-bit floating-point. 3 components per attribute.
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="color">
<a href="#color" class="doc-link"></a>
color<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L98">Core/VertexFormat.js 98</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has an RGB color attribute.
<p>
8-bit unsigned byte. 3 components per attribute.
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="normal">
<a href="#normal" class="doc-link"></a>
normal<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L50">Core/VertexFormat.js 50</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has a normal attribute (normalized), which is commonly used for lighting.
<p>
32-bit floating-point. 3 components per attribute.
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="position">
<a href="#position" class="doc-link"></a>
position<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L38">Core/VertexFormat.js 38</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has a 3D position attribute.
<p>
64-bit floating-point (for precision). 3 components per attribute.
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="st">
<a href="#st" class="doc-link"></a>
st<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L62">Core/VertexFormat.js 62</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has a 2D texture coordinate attribute.
<p>
32-bit floating-point. 2 components per attribute
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="tangent">
<a href="#tangent" class="doc-link"></a>
tangent<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L86">Core/VertexFormat.js 86</a>
</div>
</h4>
</div>
<div class="description">
When <code>true</code>, the vertex has a tangent attribute (normalized), which is used for tangent-space effects like bump mapping.
<p>
32-bit floating-point. 3 components per attribute.
</p>
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">false</code>
</dl>
<h3 class="subsection-title">Methods</h3>
<div class="nameContainer">
<h4 class="name" id=".clone">
<a href="#.clone" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.VertexFormat.clone<span class="signature">(vertexFormat, <span class="optional">result</span>)</span> &rarr; <span class="type-signature returnType"><a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L295">Core/VertexFormat.js 295</a>
</div>
</h4>
</div>
<div class="description">
Duplicates a VertexFormat instance.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>vertexFormat</code></td>
<td class="type">
<span class="param-type"><a href="VertexFormat.html">VertexFormat</a></span>
</td>
<td class="description last">
The vertex format to duplicate.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="VertexFormat.html">VertexFormat</a></span>
</td>
<td class="description last">
<span class="optional">optional</span>
The object onto which to store the result.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The modified result parameter or a new VertexFormat instance if one was not provided. (Returns undefined if vertexFormat is undefined)
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id=".pack">
<a href="#.pack" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.VertexFormat.pack<span class="signature">(value, array, <span class="optional">startingIndex</span>)</span> &rarr; <span class="type-signature returnType">Array.&lt;Number></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L236">Core/VertexFormat.js 236</a>
</div>
</h4>
</div>
<div class="description">
Stores the provided instance into the provided array.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type"><a href="VertexFormat.html">VertexFormat</a></span>
</td>
<td class="default">
</td>
<td class="description last">
The value to pack.</td>
</tr>
<tr>
<td class="name"><code>array</code></td>
<td class="type">
<span class="param-type">Array.&lt;Number></span>
</td>
<td class="default">
</td>
<td class="description last">
The array to pack into.</td>
</tr>
<tr>
<td class="name"><code>startingIndex</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">0</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The index into the array at which to start packing the elements.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The array that was packed into
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id=".unpack">
<a href="#.unpack" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.VertexFormat.unpack<span class="signature">(array, <span class="optional">startingIndex</span>, <span class="optional">result</span>)</span> &rarr; <span class="type-signature returnType"><a href="VertexFormat.html">VertexFormat</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/VertexFormat.js#L266">Core/VertexFormat.js 266</a>
</div>
</h4>
</div>
<div class="description">
Retrieves an instance from a packed array.
</div>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>array</code></td>
<td class="type">
<span class="param-type">Array.&lt;Number></span>
</td>
<td class="default">
</td>
<td class="description last">
The packed array.</td>
</tr>
<tr>
<td class="name"><code>startingIndex</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">0</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The starting index of the element to be unpacked.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="VertexFormat.html">VertexFormat</a></span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
The object into which to store the result.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The modified result parameter or a new VertexFormat instance if one was not provided.
</div>
<dl class="details">
</dl>
</article>
</section>
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