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Chinedu Francis Nwafili 309cc1cedd Add screenshots of examples

When looking into wgpu-rs as a replacement for WebGL I went to the
examples directory on GitHub to browse for a bit.

I wanted to see some of the examples at a glance without needing to
clone the repository.

This commit enables that by adding a README to each example with a
description of the example and screenshots / example output.

In a few cases the description is a bit redundant - but my hope is that
in the future we can improve all the READMEs.

Being a web API and thus very accessible, WebGPU could end up being many
people's first introduction to graphics programming so the lower we make
the barrier the better.

2020-04-26 18:59:48 -02:30

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capture

This example shows how to capture an image by rendering it to a texture, copying the texture to a buffer, and retrieving it from the buffer.

This could be used for "taking a screenshot," with the added benefit that this method doesn't require a window to be created.

To Run

cargo run --example capture
open examples/capture/red.png

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capture

To Run

Screenshots

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