Hot reloading PNG files

[visualcode-t]

I have a very simple program that does not reload textures, when I expect that it would:

fn main() {
    App::new()
    .add_plugins(DefaultPlugins.set(AssetPlugin{
        watch_for_changes:true,
        ..Default::default()
    }))
    .add_startup_system(test)
    .run();
}

fn test(mut commands: Commands, assets: Res<AssetServer>) {
    commands.spawn(Camera2dBundle::default());
    commands.spawn(new_image(0.0 ,0.0,3.0,&assets,"img.png"));
}

fn new_image(x: f32, y:f32,z:f32, asset_server: &Res<AssetServer>,img: &str) -> SpriteBundle {
    SpriteBundle {
        texture: asset_server.load(img),
        transform: Transform {
            translation: Vec3::new(x,y,z),
            ..default()
        },
        ..default()
    }
}

I added to my Cargo.toml file as well, just in case:

bevy = {version = "0.9.1", features= ["filesystem_watcher"] }

What am I doing wrong?

[frammiie]

Perhaps try asset_server.reload_asset ?
https://docs.rs/bevy/0.9.1/bevy/asset/struct.AssetServer.html#method.reload_asset

[rparrett]

Could you give some more details about your environment, and how you're testing this?

The code you provided works fine for me as-is in a new project with

bevy = "0.9"

(Testing on macOS, just editing the asset in Preview)

[visualcode-t]

Sure, I am using Windows 11 22H2x64. I am running the program in debug and attempting to change the graphic in the folder. But, when I do this, it does not update. I do have the following:

[profile.dev.package."*"]
opt-level = 3

But, I tried without and it failed to change the graphic, too.

[rparrett]

Thanks. It looks like you're experiencing this issue: #3359

[visualcode-t]

It is possible that these are related, but I would say that this is different. I do not receive the error that the file cannot be found. I don't get any indication that it's working at all. However, if I FORCE the reload with reload_asset it does change, and it does show an error message if it cannot find the file.

[rparrett]

You see the same behavior when modifying the file in-place instead of removing and recreating it?

[visualcode-t]

Yes.

[visualcode-t]

I tried the Bevy hot_asset_reloader and it does work when the gltf file changes. So, either I am doing something wrong with the png or it isn't working properly for png.

[visualcode-t]

Adding a system, does work:

fn reload (assets: Res<AssetServer>) {
    assets.reload_asset("Water.png");
}

But this runs every cycle.