This example is running in WebGL2 and should work in most browsers. You can check the WebGPU examples here.

//! A shader and a material that uses it.

use bevy::{
    reflect::{TypePath, TypeUuid},
    render::render_resource::{AsBindGroup, ShaderRef},

fn main() {
        .add_plugins((DefaultPlugins, MaterialPlugin::<CustomMaterial>::default()))
        .add_systems(Startup, setup)

/// set up a simple 3D scene
fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<CustomMaterial>>,
    asset_server: Res<AssetServer>,
) {
    // cube
    commands.spawn(MaterialMeshBundle {
        mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })),
        transform: Transform::from_xyz(0.0, 0.5, 0.0),
        material: materials.add(CustomMaterial {
            color: Color::BLUE,
            color_texture: Some(asset_server.load("branding/icon.png")),
            alpha_mode: AlphaMode::Blend,

    // camera
    commands.spawn(Camera3dBundle {
        transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),

/// The Material trait is very configurable, but comes with sensible defaults for all methods.
/// You only need to implement functions for features that need non-default behavior. See the Material api docs for details!
impl Material for CustomMaterial {
    fn fragment_shader() -> ShaderRef {

    fn alpha_mode(&self) -> AlphaMode {

// This is the struct that will be passed to your shader
#[derive(AsBindGroup, TypeUuid, TypePath, Debug, Clone)]
#[uuid = "f690fdae-d598-45ab-8225-97e2a3f056e0"]
pub struct CustomMaterial {
    color: Color,
    color_texture: Option<Handle<Image>>,
    alpha_mode: AlphaMode,