bevy: Window transparency broken on Windows

Bevy version

main

The transparent_window example appears to have broken.

2023-02-07T09:15:10.694725Z  INFO bevy_render::renderer: AdapterInfo { name: "NVIDIA GeForce RTX 3050 Ti Laptop GPU", vendor: 4318, device: 9632, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "527.56", backend: Vulkan }
2023-02-07T09:15:10.985257Z  INFO bevy_diagnostic::system_information_diagnostics_plugin::internal: SystemInfo { os: "Windows 11 Home", kernel: "22621", cpu: "11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz", core_count: "8", memory: "63.7 GiB" }

About this issue

Original URL
State: open
Created a year ago
Comments: 18 (9 by maintainers)

Commits related to this issue

Remove mention of Windows 11 from Window::transparent's docs (#7832) # Objective Fix #7544. Update docs for `Window::transparent` regarding Windows 11 platform support. Following the update to winit... — committed to bevyengine/bevy by james7132 a year ago
Remove mention of Windows 11 from Window::transparent's docs (#7832) # Objective Fix #7544. Update docs for `Window::transparent` regarding Windows 11 platform support. Following the update to winit... — committed to shfty-rust/bevy by james7132 a year ago

Most upvoted comments

Using the following code:

    let window = WindowBuilder::new()
        .with_title("A simple window")
        .with_transparent(true)
        .build(&event_loop)
        .expect("Builing window failed");

    let instance = wgpu::Instance::default();

    let surface = unsafe { instance.create_surface(&window) }.expect("Could not create surface");

    for ad in instance.enumerate_adapters(wgpu::Backends::all()) {
        info!(
            "Adapter : {:?}\n Supported Alpha : {:?}",
            ad.get_info(),
            surface.get_capabilities(&ad).alpha_modes
        );
    }

I enumerate to see all supported alpha_modes for all adapters on my laptop. The results are as follows:

2023-08-30T08:05:50.081235Z  INFO gapoo:
 Adapter : AdapterInfo { name: "NVIDIA GeForce GTX 1660 Ti", vendor: 4318, device: 8593, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "532.09", backend: Vulkan }
 Supported Alpha : [Opaque]
    at src\main.rs:29

2023-08-30T08:05:50.081668Z  INFO gapoo:
 Adapter : AdapterInfo { name: "Intel(R) UHD Graphics 630", vendor: 32902, device: 16027, device_type: IntegratedGpu, driver: "Intel Corporation", driver_info: "Intel driver", backend: Vulkan }
 Supported Alpha : [Opaque, Inherit]
    at src\main.rs:29

2023-08-30T08:05:50.081924Z  INFO gapoo:
 Adapter : AdapterInfo { name: "NVIDIA GeForce GTX 1660 Ti", vendor: 4318, device: 8593, device_type: DiscreteGpu, driver: "", driver_info: "", backend: Dx12 }
 Supported Alpha : [Opaque]
    at src\main.rs:29

2023-08-30T08:05:50.114292Z  INFO gapoo:
 Adapter : AdapterInfo { name: "Intel(R) UHD Graphics 630", vendor: 32902, device: 16027, device_type: IntegratedGpu, driver: "", driver_info: "", backend: Dx12 }
 Supported Alpha : [Opaque]
    at src\main.rs:29

2023-08-30T08:05:50.123944Z  INFO gapoo:
 Adapter : AdapterInfo { name: "Microsoft Basic Render Driver", vendor: 5140, device: 140, device_type: Cpu, driver: "", driver_info: "", backend: Dx12 }
 Supported Alpha : [Opaque]
    at src\main.rs:29

Only Opaque and Inherit are available. This might be the problem.

morfert on Aug 30, 2023

Can’t seem to repro this myself, going to try updating my drivers. Maybe should try a cargo clean/cargo run --example transparent_window

Aceeri on Feb 8, 2023