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sotrh 1 year ago
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commit 236c961964

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@ -150,7 +150,7 @@ I won't get into the specifics of wasm-bindgen, so if you need a primer (or just
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</code></pre></div></div> <p>Press the button below and you will see the code running!</p> <div id="wasm-example"><!----> <button>Try Tutorial1_window!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial1-window/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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</head>
<body>
@ -83,6 +83,7 @@
force_fallback_adapter<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token keyword">await</span><span class="token punctuation">.</span><span class="token function">unwrap</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><h3 id="instance-and-adapter"><a href="#instance-and-adapter" class="header-anchor">#</a> Instance and Adapter</h3> <p>The <code>instance</code> is the first thing you create when using wgpu. Its main purpose
is to create <code>Adapter</code>s and <code>Surface</code>s.</p> <p>The <code>adapter</code> is a handle to our actual graphics card. You can use this to get information about the graphics card such as its name and what backend the adapter uses. We use this to create our <code>Device</code> and <code>Queue</code> later. Let's discuss the fields of <code>RequestAdapterOptions</code>.</p> <ul><li><code>power_preference</code> has two variants: <code>LowPower</code>, and <code>HighPerformance</code>. <code>LowPower</code> will pick an adapter that favors battery life, such as an integrated GPU. <code>HighPerformance</code> will pick an adapter for more power-hungry yet more performant GPU's such as a dedicated graphics card. WGPU will favor <code>LowPower</code> if there is no adapter for the <code>HighPerformance</code> option.</li> <li>The <code>compatible_surface</code> field tells wgpu to find an adapter that can present to the supplied surface.</li> <li>The <code>force_fallback_adapter</code> forces wgpu to pick an adapter that will work on all hardware. This usually means that the rendering backend will use a &quot;software&quot; system, instead of hardware such as a GPU.</li></ul> <div class="note"><p>The options I've passed to <code>request_adapter</code> aren't guaranteed to work for all devices, but will work for most of them. If wgpu can't find an adapter with the required permissions, <code>request_adapter</code> will return <code>None</code>. If you want to get all adapters for a particular backend you can use <code>enumerate_adapters</code>. This will give you an iterator that you can loop over to check if one of the adapters works for your needs.</p> <div class="language-rust extra-class"><pre class="language-rust"><code><span class="token keyword">let</span> adapter <span class="token operator">=</span> instance
<span class="token punctuation">.</span><span class="token function">enumerate_adapters</span><span class="token punctuation">(</span><span class="token namespace">wgpu<span class="token punctuation">::</span></span><span class="token class-name">Backends</span><span class="token punctuation">::</span><span class="token function">all</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
@ -118,7 +119,10 @@ is to create <code>Adapter</code>s and <code>Surface</code>s.</p> <p>The <code>a
</code></pre></div><p>Here we are defining a config for our surface. This will define how the surface creates its underlying <code>SurfaceTexture</code>s. We will talk about <code>SurfaceTexture</code> when we get to the <code>render</code> function. For now, let's talk about the config's fields.</p> <p>The <code>usage</code> field describes how <code>SurfaceTexture</code>s will be used. <code>RENDER_ATTACHMENT</code> specifies that the textures will be used to write to the screen (we'll talk about more <code>TextureUsages</code>s later).</p> <p>The <code>format</code> defines how <code>SurfaceTexture</code>s will be stored on the gpu. <code>surface.get_supported_formats(&amp;adapter)</code> returns a <code>Vec</code> of the formats that are supported by that surface. While a surface may support many formats, it usually has a format that it prefers, in which case it places that format first in the returned <code>Vec</code>. We use the format in the first position (<code>[0]</code>) to get the best format to use for that particular surface.</p> <p><code>width</code> and <code>height</code> are the width and the height in pixels of a <code>SurfaceTexture</code>. This should usually be the width and the height of the window.</p> <div class="warning">
Make sure that the width and height of the `SurfaceTexture` are not 0, as that can cause your app to crash.
</div> <p><code>present_mode</code> uses <code>wgpu::PresentMode</code> enum which determines how to sync the surface with the display. The option we picked, <code>PresentMode::Fifo</code>, will cap the display rate at the display's framerate. This is essentially VSync. This mode is guaranteed to be supported on all platforms. There are other options and you can see all of them <a href="https://docs.rs/wgpu/latest/wgpu/enum.PresentMode.html" target="_blank" rel="noopener noreferrer">in the docs<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <div class="note"><p>If you want to let your users pick what <code>PresentMode</code> they use, you can use <a href="https://docs.rs/wgpu/latest/wgpu/struct.Surface.html#method.get_supported_modes" target="_blank" rel="noopener noreferrer">Surface::get_supported_modes()<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> to get a list of all the <code>PresentMode</code>s the surface supports:</p> <div class="language-rust extra-class"><pre class="language-rust"><code><span class="token keyword">let</span> modes <span class="token operator">=</span> surface<span class="token punctuation">.</span><span class="token function">get_supported_modes</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>adapter<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><p>Regardless, <code>PresentMode::Fifo</code> will always be supported, and <code>PresentMode::AutoVsync</code> and <code>PresentMode::AutoNoVsync</code> have fallback support and therefore will work on all platforms.</p></div> <p>Now that we've configured our surface properly we can add these new fields at the end of the method.</p> <div class="language-rust extra-class"><pre class="language-rust"><code> <span class="token keyword">Self</span> <span class="token punctuation">{</span>
</code></pre></div><p>Regardless, <code>PresentMode::Fifo</code> will always be supported, and <code>PresentMode::AutoVsync</code> and <code>PresentMode::AutoNoVsync</code> have fallback support and therefore will work on all platforms.</p></div> <p>Now that we've configured our surface properly we can add these new fields at the end of the method.</p> <div class="language-rust extra-class"><pre class="language-rust"><code> <span class="token keyword">async</span> <span class="token keyword">fn</span> <span class="token function-definition function">new</span><span class="token punctuation">(</span>window<span class="token punctuation">:</span> <span class="token operator">&amp;</span><span class="token class-name">Window</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token keyword">Self</span> <span class="token punctuation">{</span>
<span class="token comment">// ...</span>
<span class="token keyword">Self</span> <span class="token punctuation">{</span>
window<span class="token punctuation">,</span>
surface<span class="token punctuation">,</span>
device<span class="token punctuation">,</span>
@ -127,8 +131,6 @@ Make sure that the width and height of the `SurfaceTexture` are not 0, as that c
size<span class="token punctuation">,</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token comment">// ...</span>
<span class="token punctuation">}</span>
</code></pre></div><p>Since our <code>State::new()</code> method is async we need to change <code>run()</code> to be async as well so that we can await it.</p> <div class="language-rust extra-class"><pre class="language-rust"><code><span class="token keyword">pub</span> <span class="token keyword">async</span> <span class="token keyword">fn</span> <span class="token function-definition function">run</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token comment">// Window setup...</span>
@ -185,6 +187,8 @@ Make sure that the width and height of the `SurfaceTexture` are not 0, as that c
state<span class="token punctuation">.</span><span class="token function">resize</span><span class="token punctuation">(</span><span class="token operator">*</span><span class="token operator">*</span>new_inner_size<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token comment">// ...</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre></div><h2 id="input"><a href="#input" class="header-anchor">#</a> input()</h2> <p><code>input()</code> returns a <code>bool</code> to indicate whether an event has been fully processed. If the method returns <code>true</code>, the main loop won't process the event any further.</p> <p>We're just going to return false for now because we don't have any events we want to capture.</p> <div class="language-rust extra-class"><pre class="language-rust"><code><span class="token comment">// impl State</span>
<span class="token keyword">fn</span> <span class="token function-definition function">input</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">mut</span> <span class="token keyword">self</span><span class="token punctuation">,</span> event<span class="token punctuation">:</span> <span class="token operator">&amp;</span><span class="token class-name">WindowEvent</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token keyword">bool</span> <span class="token punctuation">{</span>
@ -301,7 +305,7 @@ event_loop<span class="token punctuation">.</span><span class="token function">r
store<span class="token punctuation">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre></div><p>The <code>RenderPassColorAttachment</code> has the <code>view</code> field which informs <code>wgpu</code> what texture to save the colors to. In this case we specify the <code>view</code> that we created using <code>surface.get_current_texture()</code>. This means that any colors we draw to this attachment will get drawn to the screen.</p> <p>The <code>resolve_target</code> is the texture that will receive the resolved output. This will be the same as <code>view</code> unless multisampling is enabled. We don't need to specify this, so we leave it as <code>None</code>.</p> <p>The <code>ops</code> field takes a <code>wpgu::Operations</code> object. This tells wgpu what to do with the colors on the screen (specified by <code>view</code>). The <code>load</code> field tells wgpu how to handle colors stored from the previous frame. Currently, we are clearing the screen with a bluish color. The <code>store</code> field tells wgpu whether we want to store the rendered results to the <code>Texture</code> behind our <code>TextureView</code> (in this case it's the <code>SurfaceTexture</code>). We use <code>true</code> as we do want to store our render results.</p> <div class="note"><p>It's not uncommon to not clear the screen if the screen is going to be completely covered up with objects. If your scene doesn't cover the entire screen however you can end up with something like this.</p> <p><img src="/learn-wgpu/assets/img/no-clear.753f913f.png" alt="./no-clear.png"></p></div> <h2 id="validation-errors"><a href="#validation-errors" class="header-anchor">#</a> Validation Errors?</h2> <p>If wgpu is using Vulkan on your machine, you may run into validation errors if you are running an older version of the Vulkan SDK. You should be using at least version <code>1.2.182</code> as older versions can give out some false positives. If errors persist, you may have encountered a bug in wgpu. You can post an issue at <a href="https://github.com/gfx-rs/wgpu" target="_blank" rel="noopener noreferrer">https://github.com/gfx-rs/wgpu<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Modify the <code>input()</code> method to capture mouse events, and update the clear color using that. <em>Hint: you'll probably need to use <code>WindowEvent::CursorMoved</code></em>.</p> <div id="wasm-example"><!----> <button>Try Tutorial2_surface!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial2-surface/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>The <code>RenderPassColorAttachment</code> has the <code>view</code> field which informs <code>wgpu</code> what texture to save the colors to. In this case we specify the <code>view</code> that we created using <code>surface.get_current_texture()</code>. This means that any colors we draw to this attachment will get drawn to the screen.</p> <p>The <code>resolve_target</code> is the texture that will receive the resolved output. This will be the same as <code>view</code> unless multisampling is enabled. We don't need to specify this, so we leave it as <code>None</code>.</p> <p>The <code>ops</code> field takes a <code>wpgu::Operations</code> object. This tells wgpu what to do with the colors on the screen (specified by <code>view</code>). The <code>load</code> field tells wgpu how to handle colors stored from the previous frame. Currently, we are clearing the screen with a bluish color. The <code>store</code> field tells wgpu whether we want to store the rendered results to the <code>Texture</code> behind our <code>TextureView</code> (in this case it's the <code>SurfaceTexture</code>). We use <code>true</code> as we do want to store our render results.</p> <div class="note"><p>It's not uncommon to not clear the screen if the screen is going to be completely covered up with objects. If your scene doesn't cover the entire screen however you can end up with something like this.</p> <p><img src="/learn-wgpu/assets/img/no-clear.753f913f.png" alt="./no-clear.png"></p></div> <h2 id="validation-errors"><a href="#validation-errors" class="header-anchor">#</a> Validation Errors?</h2> <p>If wgpu is using Vulkan on your machine, you may run into validation errors if you are running an older version of the Vulkan SDK. You should be using at least version <code>1.2.182</code> as older versions can give out some false positives. If errors persist, you may have encountered a bug in wgpu. You can post an issue at <a href="https://github.com/gfx-rs/wgpu" target="_blank" rel="noopener noreferrer">https://github.com/gfx-rs/wgpu<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Modify the <code>input()</code> method to capture mouse events, and update the clear color using that. <em>Hint: you'll probably need to use <code>WindowEvent::CursorMoved</code></em>.</p> <div id="wasm-example"><!----> <button>Try Tutorial2_surface!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial2-surface/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -406,7 +406,7 @@ fn fs_main(in: VertexOutput) -&gt; @location(0) vec4&lt;f32&gt; {
<span class="token punctuation">}</span>
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</code></pre></div><p>Phew!</p> <p>With these changes in place, the code should be working the same as it was before, but we now have a much easier way to create textures.</p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Create another texture and swap it out when you press the space key.</p> <div id="wasm-example"><!----> <button>Try Tutorial5_textures!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial5-textures/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>Phew!</p> <p>With these changes in place, the code should be working the same as it was before, but we now have a much easier way to create textures.</p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Create another texture and swap it out when you press the space key.</p> <div id="wasm-example"><!----> <button>Try Tutorial5_textures!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial5-textures/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -415,6 +415,6 @@ fn fs_main(in: VertexOutput) -&gt; @location(0) vec4&lt;f32&gt; {
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@ -319,7 +319,7 @@ fn vs_main(
<span class="token keyword">self</span><span class="token punctuation">.</span>camera_uniform<span class="token punctuation">.</span><span class="token function">update_view_proj</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>camera<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">self</span><span class="token punctuation">.</span>queue<span class="token punctuation">.</span><span class="token function">write_buffer</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>camera_buffer<span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">,</span> <span class="token namespace">bytemuck<span class="token punctuation">::</span></span><span class="token function">cast_slice</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token punctuation">[</span><span class="token keyword">self</span><span class="token punctuation">.</span>camera_uniform<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>That's all we need to do. If you run the code now you should see a pentagon with our tree texture that you can rotate around and zoom into with the wasd/arrow keys.</p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Have our model rotate on its own independently of the camera. <em>Hint: you'll need another matrix for this.</em></p> <div id="wasm-example"><!----> <button>Try Tutorial6_uniforms!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial6-uniforms/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>That's all we need to do. If you run the code now you should see a pentagon with our tree texture that you can rotate around and zoom into with the wasd/arrow keys.</p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Have our model rotate on its own independently of the camera. <em>Hint: you'll need another matrix for this.</em></p> <div id="wasm-example"><!----> <button>Try Tutorial6_uniforms!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial6-uniforms/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
<a href="/learn-wgpu/beginner/tutorial5-textures/" class="prev">
Textures and bind groups
@ -328,6 +328,6 @@ fn vs_main(
</a>
</span></p></div> </main></div></div><div class="global-ui"><!----></div></div>
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@ -183,7 +183,7 @@ fn vs_main(
out.clip_position = camera.view_proj * model_matrix * vec4&lt;f32&gt;(model.position, 1.0);
return out;
}
</code></pre></div><p>With all that done, we should have a forest of trees!</p> <p><img src="/learn-wgpu/assets/img/forest.5c5cf3ad.png" alt="./forest.png"></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Modify the position and/or rotation of the instances every frame.</p> <div id="wasm-example"><!----> <button>Try Tutorial7_instancing!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial7-instancing/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>With all that done, we should have a forest of trees!</p> <p><img src="/learn-wgpu/assets/img/forest.5c5cf3ad.png" alt="./forest.png"></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Modify the position and/or rotation of the instances every frame.</p> <div id="wasm-example"><!----> <button>Try Tutorial7_instancing!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial7-instancing/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
<a href="/learn-wgpu/beginner/tutorial6-uniforms/" class="prev">
Uniform buffers and a 3d camera
@ -192,6 +192,6 @@ fn vs_main(
</a>
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</code></pre></div><p>And that's all we have to do! No shader code needed! If you run the application, the depth issues will be fixed.</p> <p><img src="/learn-wgpu/assets/img/forest_fixed.a77f70f6.png" alt="forest_fixed.png"></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Since the depth buffer is a texture, we can sample it in the shader. Because it's a depth texture, we'll have to use the <code>sampler_comparison</code> uniform type and the <code>textureSampleCompare</code> function instead of <code>sampler</code>, and <code>sampler2D</code> respectively. Create a bind group for the depth texture (or reuse an existing one), and render it to the screen.</p> <div id="wasm-example"><!----> <button>Try Tutorial8_depth!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial8-depth/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>And that's all we have to do! No shader code needed! If you run the application, the depth issues will be fixed.</p> <p><img src="/learn-wgpu/assets/img/forest_fixed.a77f70f6.png" alt="forest_fixed.png"></p> <h2 id="challenge"><a href="#challenge" class="header-anchor">#</a> Challenge</h2> <p>Since the depth buffer is a texture, we can sample it in the shader. Because it's a depth texture, we'll have to use the <code>sampler_comparison</code> uniform type and the <code>textureSampleCompare</code> function instead of <code>sampler</code>, and <code>sampler2D</code> respectively. Create a bind group for the depth texture (or reuse an existing one), and render it to the screen.</p> <div id="wasm-example"><!----> <button>Try Tutorial8_depth!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial8-depth/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -424,7 +424,7 @@ render_pass<span class="token punctuation">.</span><span class="token function">
</code></pre></div><p>The code in <code>lib.rs</code> will change accordingly.</p> <div class="language-rust extra-class"><pre class="language-rust"><code>render_pass<span class="token punctuation">.</span><span class="token function">set_vertex_buffer</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token keyword">self</span><span class="token punctuation">.</span>instance_buffer<span class="token punctuation">.</span><span class="token function">slice</span><span class="token punctuation">(</span><span class="token punctuation">..</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
render_pass<span class="token punctuation">.</span><span class="token function">set_pipeline</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>render_pipeline<span class="token punctuation">)</span><span class="token punctuation">;</span>
render_pass<span class="token punctuation">.</span><span class="token function">draw_model_instanced</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>obj_model<span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">..</span><span class="token keyword">self</span><span class="token punctuation">.</span>instances<span class="token punctuation">.</span><span class="token function">len</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token keyword">u32</span><span class="token punctuation">,</span> <span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>camera_bind_group<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><div id="wasm-example"><!----> <button>Try Tutorial9_models!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial9-models/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><div id="wasm-example"><!----> <button>Try Tutorial9_models!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/beginner/tutorial9-models/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -433,6 +433,6 @@ render_pass<span class="token punctuation">.</span><span class="token function">
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@ -640,7 +640,7 @@ let specular_color = specular_strength * light.color;
let half_dir = normalize(view_dir + light_dir);
let specular_strength = pow(max(dot(in.world_normal, half_dir), 0.0), 32.0);
</code></pre></div><p>It's hard to tell the difference, but here are the results.</p> <p><img src="/learn-wgpu/assets/img/half_dir.bbcc23b8.png" alt="./half_dir.png"></p> <div id="wasm-example"><!----> <button>Try Tutorial10_lighting!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial10-lighting/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>It's hard to tell the difference, but here are the results.</p> <p><img src="/learn-wgpu/assets/img/half_dir.bbcc23b8.png" alt="./half_dir.png"></p> <div id="wasm-example"><!----> <button>Try Tutorial10_lighting!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial10-lighting/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -649,6 +649,6 @@ let specular_strength = pow(max(dot(in.world_normal, half_dir), 0.0), 32.0);
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@ -483,7 +483,7 @@ render_pass<span class="token punctuation">.</span><span class="token function">
<span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>camera_bind_group<span class="token punctuation">,</span>
<span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">.</span>light_bind_group<span class="token punctuation">,</span>
<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><p>That gives us something like this.</p> <p><img src="/learn-wgpu/assets/img/debug_material.b374492b.png" alt=""></p> <p>You can find the textures I use in the Github Repository.</p> <div id="wasm-example"><!----> <button>Try Tutorial11_normals!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial11-normals/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>That gives us something like this.</p> <p><img src="/learn-wgpu/assets/img/debug_material.b374492b.png" alt=""></p> <p>You can find the textures I use in the Github Repository.</p> <div id="wasm-example"><!----> <button>Try Tutorial11_normals!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial11-normals/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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Working with Lights
@ -492,6 +492,6 @@ render_pass<span class="token punctuation">.</span><span class="token function">
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@ -381,7 +381,7 @@
<span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>With that, we should be able to move our camera wherever we want.</p> <p><img src="/learn-wgpu/assets/img/screenshot.4f5740bc.png" alt="./screenshot.png"></p> <div id="wasm-example"><!----> <button>Try Tutorial12_camera!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial12-camera/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:00:24 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
</code></pre></div><p>With that, we should be able to move our camera wherever we want.</p> <p><img src="/learn-wgpu/assets/img/screenshot.4f5740bc.png" alt="./screenshot.png"></p> <div id="wasm-example"><!----> <button>Try Tutorial12_camera!</button></div> <div class="auto-github-link"><a href="https://github.com/sotrh/learn-wgpu/tree/master/code/intermediate/tutorial12-camera/" target="_blank" rel="noopener noreferrer">Check out the code!</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">1/14/2023, 10:10:21 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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@ -390,6 +390,6 @@
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