Compute Operations code does not compile about vulkano-www HOT 8 CLOSED

eisterman@e940dbe this will help you

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I got another error along with the previous one this time:

error[E0560]: struct `vulkano::device::extensions::DeviceExtensions` has no field named `khr_storage_buffer_storage_class`
   --> src/main.rs:187:31
    |
187 |             &DeviceExtensions{khr_storage_buffer_storage_class:true, ..DeviceExtensions::none()},
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `vulkano::device::extensions::DeviceExtensions` does not have this field
    |
    = note: available fields are: `khr_swapchain`, `khr_display_swapchain`, `khr_sampler_mirror_clamp_to_edge`, `khr_maintenance1`, `khr_get_memory_requirements2` ... and 4 others

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did you add 'vulkano-shaders = "0.16.0"' dependency in cargo.toml ?

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Yes it's there in the cargo.toml

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What version of vulkano are you using?
Now at the v0.17 there isn't the device::extensions submodule, but DeviceExtension are directly in the vulkano::device module, so i'm thinking you're using an old version of the crate.

#74 is a pull request i've maded some time ago for fix the website, but nobody have confirmed or commented the fix

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@eisterman Yes, I was using v0.13 as mentioned in the tutorial. Upgrading to v0.17 gives two different errors:

error[E0061]: this function takes 4 parameters but 3 parameters were supplied
   --> src/main.rs:195:23
    |
195 |       let data_buffer = CpuAccessibleBuffer::from_iter(device.clone(), BufferUsage::all(),
    |  _______________________^
196 | |                                                     data_iter).expect("failed to create buffer");
    | |______________________________________________________________^ expected 4 parameters

error[E0061]: this function takes 1 parameter but 2 parameters were supplied
   --> src/main.rs:221:24
    |
221 |     let set = Arc::new(PersistentDescriptorSet::start(compute_pipeline.clone(), 0)
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 1 parameter

I found that CpuAccessibleBuffer now accepts host_cached parameter, so I just passed a true value (though I am not sure what would be better). PersistentDescriptorSet accepts only Arc as parameter, which I am not sure how to create from compute_pipeline.

Also, do you recommend to follow the tutorial using the latest version of vulkano? Or have there been major changes in the crate since the tutorial was written?

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There have been breaking changes in almost every version change.
Actually at the moment my advice is to use 0.16 and to follow the code of this pull request, which I had verified to work: https://github.com/eisterman/vulkano-www/tree/patch-1/examples

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Okay. Thanx!

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