From 07587532729544157bbe9b581f5d9a46315f5ffc Mon Sep 17 00:00:00 2001
From: Jonni Liljamo <jonni@liljamo.com>
Date: Sun, 1 Jun 2025 16:25:54 +0300
Subject: [PATCH] feat(demo): simplify lighting

---
 crates/bevy_dice_demo/Cargo.toml  |  2 ++
 crates/bevy_dice_demo/src/main.rs | 35 +++++++++++--------------------
 2 files changed, 14 insertions(+), 23 deletions(-)

diff --git a/crates/bevy_dice_demo/Cargo.toml b/crates/bevy_dice_demo/Cargo.toml
index 4d4ace0..8127670 100644
--- a/crates/bevy_dice_demo/Cargo.toml
+++ b/crates/bevy_dice_demo/Cargo.toml
@@ -15,6 +15,8 @@ bevy_dice = { path = "../bevy_dice" }
 avian3d = { version = "0.3", default-features = false }
 bevy = { version = "0.16", default-features = false, features = [
   "async_executor",
+  "bevy_core_pipeline",
+  "bevy_pbr",
   "bevy_render",
   "bevy_state",
   "bevy_window",
diff --git a/crates/bevy_dice_demo/src/main.rs b/crates/bevy_dice_demo/src/main.rs
index a7fa0df..a252cba 100644
--- a/crates/bevy_dice_demo/src/main.rs
+++ b/crates/bevy_dice_demo/src/main.rs
@@ -4,16 +4,10 @@
  * This file is licensed under MIT, see LICENSE for more information.
  */
 
-use std::{collections::HashMap, f32::consts::PI};
+use std::collections::HashMap;
 
 use avian3d::prelude::*;
-use bevy::{
-    asset::LoadState,
-    core_pipeline::bloom::Bloom,
-    pbr::{Atmosphere, light_consts::lux::RAW_SUNLIGHT},
-    prelude::*,
-    render::camera::Exposure,
-};
+use bevy::{asset::LoadState, prelude::*};
 use bevy_dice::{DicePlugin, DicePluginConfig, Die, DieVariant, ThrowDie};
 use bevy_egui::{EguiContextPass, EguiContexts, EguiPlugin, egui};
 use bevy_embedded_assets::EmbeddedAssetPlugin;
@@ -65,7 +59,7 @@ fn main() {
     app.init_resource::<UIState>()
         .add_systems(EguiContextPass, ui);
 
-    app.add_systems(Update, rotate_sun);
+    app.add_systems(Update, rotate_light);
 
     app.add_observer(despawn_dice);
 
@@ -109,24 +103,16 @@ fn setup(
     ));
 
     commands.spawn((
-        DirectionalLight {
+        PointLight {
             shadows_enabled: true,
-            illuminance: RAW_SUNLIGHT,
             ..default()
         },
-        Transform::from_xyz(1.0, 3.0, 0.0).looking_at(Vec3::ZERO, Vec3::Y),
+        Transform::from_xyz(4.0, 8.0, 0.0),
     ));
 
     commands.spawn((
         Camera3d::default(),
-        Camera {
-            hdr: true,
-            ..Default::default()
-        },
         Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Dir3::Y),
-        Atmosphere::EARTH,
-        Exposure::SUNLIGHT,
-        Bloom::NATURAL,
     ));
 
     commands.insert_resource(DicePluginConfig {
@@ -218,8 +204,11 @@ fn despawn_dice(
     }
 }
 
-fn rotate_sun(mut q_suns: Query<&mut Transform, With<DirectionalLight>>, r_time: Res<Time>) {
-    q_suns
-        .iter_mut()
-        .for_each(|mut transform| transform.rotate_y(-r_time.delta_secs() * PI / 10.0));
+fn rotate_light(mut q_lights: Query<&mut Transform, With<PointLight>>, r_time: Res<Time>) {
+    q_lights.iter_mut().for_each(|mut transform| {
+        transform.rotate_around(
+            Vec3::new(0.0, 0.0, 0.0),
+            Quat::from_euler(EulerRot::XYZ, 0.0, 0.5 * r_time.delta_secs(), 0.0),
+        )
+    });
 }
-- 
2.44.1