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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `vertex` mod in crate `vulkano`."><meta name="keywords" content="rust, rustlang, rust-lang, vertex"><title>vulkano::pipeline::vertex - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../vulkano/index.html'><div class='logo-container'><img src='https://raw.githubusercontent.com/vulkano-rs/vulkano/master/logo.png' alt='logo'></div></a><p class='location'>Module vertex</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li></ul></div><p class='location'><a href='../../index.html'>vulkano</a>::<wbr><a href='../index.html'>pipeline</a></p><script>window.sidebarCurrent = {name: 'vertex', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/vulkano/pipeline/vertex/mod.rs.html#10-89' title='goto source code'>[src]</a></span><span class='in-band'>Module <a href='../../index.html'>vulkano</a>::<wbr><a href='../index.html'>pipeline</a>::<wbr><a class="mod" href=''>vertex</a></span></h1><div class='docblock'><h1 id="vertex-sources-definition" class="section-header"><a href="#vertex-sources-definition">Vertex sources definition</a></h1>
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<p>When you create a graphics pipeline object, you need to pass an object which indicates the
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layout of the vertex buffer(s) that will serve as input for the vertex shader. This is done
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by passing an implementation of the <code>VertexDefinition</code> trait.</p>
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<p>In addition to this, the object that you pass when you create the graphics pipeline must also
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implement the <code>VertexSource</code> trait. This trait has a template parameter which corresponds to the
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list of vertex buffers.</p>
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<p>The vulkano library provides some structs that already implement these traits.
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The most common situation is a single vertex buffer and no instancing, in which case you can
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pass a <code>SingleBufferDefinition</code> when you create the pipeline.</p>
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<h1 id="implementing-vertex" class="section-header"><a href="#implementing-vertex">Implementing <code>Vertex</code></a></h1>
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<p>The implementations of the <code>VertexDefinition</code> trait that are provided by vulkano (like
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<code>SingleBufferDefinition</code>) require you to use a buffer whose content is <code>[V]</code> where <code>V</code>
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implements the <code>Vertex</code> trait.</p>
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<p>The <code>Vertex</code> trait is unsafe, but can be implemented on a struct with the <code>impl_vertex!</code>
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macro.</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<div class='information'><div class='tooltip ignore'>ⓘ<span class='tooltiptext'>This example is not tested</span></div></div><div class="example-wrap"><pre class="rust rust-example-rendered ignore">
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<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">buffer</span>::<span class="ident">BufferAccess</span>;
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<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">buffer</span>::<span class="ident">BufferUsage</span>;
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<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">memory</span>::<span class="ident">HostVisible</span>;
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<span class="kw">use</span> <span class="ident">vulkano</span>::<span class="ident">pipeline</span>::<span class="ident">vertex</span>::;
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<span class="kw">struct</span> <span class="ident">Vertex</span> {
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<span class="ident">position</span>: [<span class="ident">f32</span>; <span class="number">2</span>]
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}
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<span class="macro">impl_vertex</span><span class="macro">!</span>(<span class="ident">Vertex</span>, <span class="ident">position</span>);
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<span class="kw">let</span> <span class="ident">usage</span> <span class="op">=</span> <span class="ident">BufferUsage</span> {
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<span class="ident">vertex_buffer</span>: <span class="bool-val">true</span>,
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.. <span class="ident">BufferUsage</span>::<span class="ident">none</span>()
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};
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<span class="kw">let</span> <span class="ident">vertex_buffer</span> <span class="op">=</span> <span class="ident">BufferAccess</span>::<span class="op"><</span>[<span class="ident">Vertex</span>], <span class="kw">_</span><span class="op">></span>::<span class="ident">array</span>(<span class="kw-2">&</span><span class="ident">device</span>, <span class="number">128</span>, <span class="kw-2">&</span><span class="ident">usage</span>, <span class="ident">HostVisible</span>, <span class="kw-2">&</span><span class="ident">queue</span>)
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.<span class="ident">expect</span>(<span class="string">"failed to create buffer"</span>);
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<span class="comment">// TODO: finish example</span></pre></div>
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</div><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
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<table><tr class='module-item'><td><a class="struct" href="struct.AttributeInfo.html" title='vulkano::pipeline::vertex::AttributeInfo struct'>AttributeInfo</a></td><td class='docblock-short'><p>Information about a single attribute within a vertex.
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TODO: change that API</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.BufferlessDefinition.html" title='vulkano::pipeline::vertex::BufferlessDefinition struct'>BufferlessDefinition</a></td><td class='docblock-short'><p>Implementation of <code>VertexDefinition</code> for drawing with no buffers at all.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.BufferlessVertices.html" title='vulkano::pipeline::vertex::BufferlessVertices struct'>BufferlessVertices</a></td><td class='docblock-short'><p>Value to be passed as the vertex source for bufferless draw commands.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.OneVertexOneInstanceDefinition.html" title='vulkano::pipeline::vertex::OneVertexOneInstanceDefinition struct'>OneVertexOneInstanceDefinition</a></td><td class='docblock-short'><p>Unstable.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.SingleBufferDefinition.html" title='vulkano::pipeline::vertex::SingleBufferDefinition struct'>SingleBufferDefinition</a></td><td class='docblock-short'><p>Implementation of <code>VertexDefinition</code> for a single vertex buffer.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.SingleInstanceBufferDefinition.html" title='vulkano::pipeline::vertex::SingleInstanceBufferDefinition struct'>SingleInstanceBufferDefinition</a></td><td class='docblock-short'><p>Same as <code>SingleBufferDefinition</code> but advances by instance.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.TwoBuffersDefinition.html" title='vulkano::pipeline::vertex::TwoBuffersDefinition struct'>TwoBuffersDefinition</a></td><td class='docblock-short'><p>Unstable.</p>
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</td></tr><tr class='module-item'><td><a class="struct" href="struct.VertexMemberInfo.html" title='vulkano::pipeline::vertex::VertexMemberInfo struct'>VertexMemberInfo</a></td><td class='docblock-short'><p>Information about a member of a vertex struct.</p>
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</td></tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
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<table><tr class='module-item'><td><a class="enum" href="enum.IncompatibleVertexDefinitionError.html" title='vulkano::pipeline::vertex::IncompatibleVertexDefinitionError enum'>IncompatibleVertexDefinitionError</a></td><td class='docblock-short'><p>Error that can happen when the vertex definition doesn't match the input of the vertex shader.</p>
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</td></tr><tr class='module-item'><td><a class="enum" href="enum.InputRate.html" title='vulkano::pipeline::vertex::InputRate enum'>InputRate</a></td><td class='docblock-short'><p>How the vertex source should be unrolled.</p>
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</td></tr><tr class='module-item'><td><a class="enum" href="enum.VertexMemberTy.html" title='vulkano::pipeline::vertex::VertexMemberTy enum'>VertexMemberTy</a></td><td class='docblock-short'><p>Type of a member of a vertex struct.</p>
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</td></tr></table><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
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<table><tr class='module-item'><td><a class="trait" href="trait.Vertex.html" title='vulkano::pipeline::vertex::Vertex trait'>Vertex</a></td><td class='docblock-short'><p>Describes an individual <code>Vertex</code>. In other words a collection of attributes that can be read
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from a vertex shader.</p>
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</td></tr><tr class='module-item'><td><a class="trait" href="trait.VertexDefinition.html" title='vulkano::pipeline::vertex::VertexDefinition trait'>VertexDefinition</a></td><td class='docblock-short'><p>Trait for types that describe the definition of the vertex input used by a graphics pipeline.</p>
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</td></tr><tr class='module-item'><td><a class="trait" href="trait.VertexMember.html" title='vulkano::pipeline::vertex::VertexMember trait'>VertexMember</a></td><td class='docblock-short'><p>Trait for data types that can be used as vertex members. Used by the <code>impl_vertex!</code> macro.</p>
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</td></tr><tr class='module-item'><td><a class="trait" href="trait.VertexSource.html" title='vulkano::pipeline::vertex::VertexSource trait'>VertexSource</a></td><td class='docblock-short'><p>Extension trait of <code>VertexDefinition</code>. The <code>L</code> parameter is an acceptable vertex source for this
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vertex definition.</p>
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