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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 `multisample` mod in crate `vulkano`."><meta name="keywords" content="rust, rustlang, rust-lang, multisample"><title>vulkano::pipeline::multisample - 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 multisample</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</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: 'multisample', 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/multisample.rs.html#10-61' 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=''>multisample</a></span></h1><div class='docblock'><p>State of multisampling.</p>
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<p>Multisampling allows you to ask the GPU to run the rasterizer to generate more than one
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sample per pixel.</p>
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<p>For example, if <code>rasterization_samples</code> is 1 then the fragment shader, depth test and stencil
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test will be run once for each pixel. However if <code>rasterization_samples</code> is <code>n</code>, then the
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GPU will pick <code>n</code> different locations within each pixel and assign to each of these locations
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a different depth value. Depth and stencil test will then be run <code>n</code> times.</p>
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<p>In addition to this, the <code>sample_shading</code> parameter is the proportion (between 0.0 and 1.0) or
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the samples that will be run through the fragment shader. For example if you set this to 1.0,
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then all the sub-pixel samples will run through the shader and get a different value. If you
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set this to 0.5, about half of the samples will run through the shader and the other half will
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get their values from the ones which went through the shader.</p>
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<p>If <code>alpha_to_coverage</code> is true, then the alpha value of the fragment will be used in
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an implementation-defined way to determine which samples get disabled or not. For example if
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the alpha value is 0.5, then about half of the samples will be discarded. If you render to a
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multisample image, this means that the color will end up being mixed with whatever color was
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underneath, which gives the same effect as alpha blending.</p>
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<p>If <code>alpha_to_one</code> is true, the alpha value of all the samples will be forced to 1.0 (or the
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maximum possible value) after the effects of <code>alpha_to_coverage</code> have been applied.</p>
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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.Multisample.html" title='vulkano::pipeline::multisample::Multisample struct'>Multisample</a></td><td class='docblock-short'><span class="stab deprecated">Deprecated</span><p>State of the multisampling.</p>
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