add dummy material_asteroid.wgsl and shading::AsteroidSurface

assets/shaders/material_asteroid.wgsl

@@ -0,0 +1,9 @@
+#import bevy_pbr::{
+    mesh_view_bindings::globals,
+    forward_io::VertexOutput,
+}
+
+@fragment
+fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
+    return vec4<f32>(0.0, 0.4, 0.0, 1.0);
+}

src/main.rs

@@ -61,6 +61,7 @@ impl Plugin for OutFlyPlugin {
             commands::CommandsPlugin,
             effects::EffectsPlugin,
             hud::HudPlugin,
+            shading::ShadingPlugin,
             world::WorldPlugin,
         ));
     }
@@ -101,7 +102,7 @@ fn debug(
     settings: Res<var::Settings>,
     keyboard_input: Res<ButtonInput<KeyCode>>,
     mut commands: Commands,
-    mut materials_custom: ResMut<Assets<shading::JupitersRing>>,
+    mut materials_custom: ResMut<Assets<shading::AsteroidSurface>>,
     materials: Query<(Entity, &Name, &Handle<StandardMaterial>)>,
 ) {
     if settings.dev_mode && keyboard_input.pressed(KeyCode::KeyP) {
@@ -110,12 +111,7 @@ fn debug(
             dbg!(mat);
             let mut entity = commands.entity(entity);
             entity.remove::<Handle<StandardMaterial>>();
-            let ring_radius = 229_000_000.0;
-            let jupiter_radius = 71_492_000.0;
-            let material = materials_custom.add(shading::JupitersRing {
-                alpha_mode: AlphaMode::Blend,
-                ring_radius: ring_radius,
-                jupiter_radius: jupiter_radius,
+            let material = materials_custom.add(shading::AsteroidSurface {
             });
             entity.insert(material);
         }

src/shading.rs

@@ -1,6 +1,14 @@
 use bevy::prelude::*;
 use bevy::render::render_resource::{AsBindGroup, ShaderRef};
 
+pub struct ShadingPlugin;
+impl Plugin for ShadingPlugin {
+    fn build(&self, app: &mut App) {
+        app.add_plugins(MaterialPlugin::<JupitersRing>::default());
+        app.add_plugins(MaterialPlugin::<AsteroidSurface>::default());
+    }
+}
+
 #[derive(Asset, TypePath, AsBindGroup, Debug, Clone)]
 pub struct JupitersRing {
     pub alpha_mode: AlphaMode,

src/world.rs

@@ -51,7 +51,6 @@ impl Plugin for WorldPlugin {
         app.add_systems(PostUpdate, handle_despawn);
         app.add_systems(Update, spawn_despawn_asteroids);
         app.add_plugins(PhysicsPlugins::default());
-        app.add_plugins(MaterialPlugin::<shading::JupitersRing>::default());
         //app.add_plugins(PhysicsDebugPlugin::default());
         app.insert_resource(Gravity(DVec3::splat(0.0)));
         app.insert_resource(AsteroidUpdateTimer(