https://danglingpointers.com/tags/gpu/ Recent content in GPU on Dangling Pointers Hugo -- gohugo.io en-us Mon, 21 Apr 2025 17:14:00 +0200 https://danglingpointers.com/post/d3d12-resource-states/ Mon, 21 Apr 2025 17:14:00 +0200 https://danglingpointers.com/post/d3d12-resource-states/ <p>The D3D12 Transition barriers may look simple at first glance, but once you consider <strong>state promotion</strong> and interactions with <strong>copy queues</strong>, there are quite a lot of subtle rules.</p> <p>The documentation is pretty complete, but also a bit scattered and confusing.</p> <p>I wished several times I had a <strong>cheat sheet</strong>, and had instead to rely on my <strong>old comments</strong> and testing things with the <strong>debug layer</strong> enabled. This article is an attempt at helping future me :)</p> <p><img src="images/DirectX_12_Ultimate.png" alt="DirectX 12 logo" /></p> <p></p> https://danglingpointers.com/post/copy-queues/ Mon, 01 Apr 2024 17:02:00 +0200 https://danglingpointers.com/post/copy-queues/ <p>Consider this case: you&rsquo;re launching several <strong>Async Compute</strong> jobs. They need some input buffers to be uploaded, and some output buffers to be read back.</p> <p><img src="images/CopyQueues_base.svg" alt="Base scenario" /></p> <p>How do you minimize the time it takes to get all the outputs back to the CPU? I&rsquo;m focusing on D3D12 and Windows for this article.</p> <p></p>