A film grain post process shader implementation for the Bevy game engine. It can be used with a single camera or multiple. It's tested to work on desktop and the web with WebGL 2. WebGPU on the web should work but I haven't tested it yet.

Expect changes in the future as there are missing features such as changing the size of the noise and animating the noise over time.

use bevy::prelude::*;
use bevy_mod_film_grain::{FilmGrainPlugin, FilmGrainSettings};
fn main() {
    App::new()
        .add_plugins((DefaultPlugins, FilmGrainPlugin))
        .add_systems(Startup, setup)
        .run();
}

fn setup(mut commands: Commands) {
    commands.spawn((
        Camera3dBundle::default(),
        // Adding this component enables the effect for this camera only.
        FilmGrainSettings::from_strength(0.2),
    ));
}

If your camera has hdr enabled, you will need to enable the hdr feature on this crate. Eventually I'll figure out specialization so this isn't needed.

Licensed under either of

• Apache License, Version 2.0
• MIT license

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.