shell laurel
I have three emissive spheres that have a child point light at their locations of different colors. The problem that I am having is that the point light shines a bright light on the other spheres creating a strange lighting effect as shown in the image. I want each sphere to just look like a glowing ball that is not effected by point lights. I have so far tried changing their standard material to be unlit and the spheres no longer are emissive. Does anyone know how to get the effect I am looking for?
/// Function to spawn a background element in the game
pub(super) fn spawn_bg(
mut cmds: Commands,
bg_assets: Res<BackgroundAssets>,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// Create a semi-transparent material with a random space background texture
let material_handle = materials.add(StandardMaterial {
base_color_texture: Some(bg_assets.get_random_space_bg()),
unlit: true,
alpha_mode: AlphaMode::Blend,
base_color: Color::default().with_alpha(0.1),
..default()
});
// Spawn a rectangle mesh with material and transform
cmds.spawn((
Mesh3d(meshes.add(Rectangle::default())),
MeshMaterial3d(material_handle),
Transform::default()
.with_scale(Vec3::splat(250.0))
.with_translation(Vec3::new(0.0, 0.0, -100.0)),
));
// spawn a random planet model at a random position
let mut rng = rand::thread_rng();
let planet_x = rng.gen_range(-12.0..=12.0);
let planet_y = rng.gen_range(-8.0..=8.0);
cmds.spawn((
SceneRoot(bg_assets.get_random_planet()),
Transform::default().with_translation(Vec3::new(
planet_x,
planet_y,
rng.gen_range(-30.0..=-20.0),
)),
));
// Spawn a star with a random color
let star_x = if planet_x > 0.0 {
rng.gen_range(-18.0..=-5.0)
} else {
rng.gen_range(5.0..=18.0)
};
let star_y = if planet_y > 0.0 {
rng.gen_range(-8.0..=0.0)
} else {
rng.gen_range(0.0..=8.0)
};
cmds.spawn(Transform::from_xyz(
star_x,
star_y,
rng.gen_range(-40.0..=-25.0),
))
.with_children(|parent| {
spawn_star(
parent,
Vec3::new(0., 0., 0.),
&mut materials,
&mut meshes,
&mut rng,
);
if rng.gen_bool(0.5) {
spawn_star(
parent,
Vec3::new(
rng.gen_range(6.0..=10.0),
rng.gen_range(6.0..=10.0),
rng.gen_range(-10.0..=10.0),
),
&mut materials,
&mut meshes,
&mut rng,
);
}
if rng.gen_bool(0.5) {
spawn_star(
parent,
Vec3::new(
rng.gen_range(-10.0..=-6.0),
rng.gen_range(-10.0..=-6.0),
rng.gen_range(-10.0..=10.0),
),
&mut materials,
&mut meshes,
&mut rng,
);
}
});
}
fn spawn_star(
cb: &mut ChildBuilder,
pos: Vec3,
materials: &mut Assets<StandardMaterial>,
meshes: &mut Assets<Mesh>,
rng: &mut ThreadRng,
) {
let star_color = Color::srgb(
1.5 + rng.gen_range(0.0..=1.0),
1.5 + rng.gen_range(0.0..=1.0),
1.5 + rng.gen_range(0.0..=1.0),
);
cb.spawn((
Mesh3d(meshes.add(Sphere::new(rng.gen_range(0.5..=2.0)).mesh().uv(32, 18))),
Transform::from_translation(pos),
MeshMaterial3d(materials.add(StandardMaterial {
emissive: star_color.into(),
..default()
})),
))
.with_child(PointLight {
color: star_color,
intensity: 30000000.0,
range: 100.0,
..default()
});
}
jovial sky