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# Objective
- It's pretty common for users to want to read data back from the gpu
and into the main world
## Solution
- Add a simple example that shows how to read data back from the gpu and
send it to the main world using a channel.
- The example is largely based on this wgpu example but adapted to bevy
-
fb305b85f6/examples/src/repeated_compute/mod.rs
---------
Co-authored-by: stormy <120167078+stowmyy@users.noreply.github.com>
Co-authored-by: Torstein Grindvik <52322338+torsteingrindvik@users.noreply.github.com>
12 lines
469 B
WebGPU Shading Language
12 lines
469 B
WebGPU Shading Language
// This shader is used for the gpu_readback example
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// The actual work it does is not important for the example
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// This is the data that lives in the gpu only buffer
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@group(0) @binding(0) var<storage, read_write> data: array<u32>;
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@compute @workgroup_size(1)
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fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
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// We use the global_id to index the array to make sure we don't
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// access data used in another workgroup
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data[global_id.x] += 1u;
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}
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