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kvark merged 2 commits into from
Apr 15, 2021
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Explainer: initialization #1636

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Explainer: initialization
kainino0x Apr 15, 2021
bbaa202
clarify similarity to WebGLRenderingContext
kainino0x Apr 15, 2021
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clarify similarity to WebGLRenderingContext
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@kainino0x
kainino0x committed Apr 15, 2021
commit bbaa20249c5c5933ca18213c5512478796f3f3e5
6 changes: 4 additions & 2 deletions explainer/index.bs
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Expand Up @@ -79,8 +79,10 @@ if (!adapter) return goToFallback();

A WebGPU "device" (`GPUDevice`) represents a connection to a WebGPU implementation, as well as
an arena for all WebGPU objects created from it (textures, command buffers, etc.)
All WebGPU usage is done through a WebGPU "device" (`GPUDevice`).
A device is similar to a `WebGLRenderingContext`, but is **not** associated with a canvas object.
All WebGPU usage is done through a WebGPU "device" (`GPUDevice`) or objects created from it.
In this sense, it serves a subset of the purpose of `WebGLRenderingContext`; however, unlike
`WebGLRenderingContext`, it is not associated with a canvas object, and most commands are
issued through "child" objects.

To get a device, an application calls `adapter.requestDevice()`, optionally passing a descriptor
which enables additional optional capabilities (features and limits).
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