Make effect more distinct

examples/instancing.rs

@@ -209,6 +209,7 @@ fn setup(
     mut meshes: ResMut<Assets<Mesh>>,
     mut materials: ResMut<Assets<StandardMaterial>>,
     mut my_effect: ResMut<InstanceManager>,
+    loader: Res<AssetServer>,
 ) {
     info!("Usage: Press the SPACE key to spawn more instances, and the DELETE key to remove an existing instance.");
 
@@ -272,10 +273,11 @@ fn setup(
     gradient.add_key(0.0, Vec4::new(1., 0., 0., 0.));
     gradient.add_key(0.1, Vec4::new(1., 0., 0., 1.));
     gradient.add_key(1.0, Vec4::new(1., 0., 0., 0.));
+    let texture = loader.load("circle.png");
 
     let writer = ExprWriter::new();
 
-    let lifetime = writer.lit(2.).expr();
+    let lifetime = writer.lit(5.).expr();
     let init_lifetime = SetAttributeModifier::new(Attribute::LIFETIME, lifetime);
 
     let init_pos = SetPositionSphereModifier {
@@ -290,12 +292,21 @@ fn setup(
         speed: writer.lit(4.).expr(),
     };
 
+    let radial_accel =
+        RadialAccelModifier::new(writer.lit(Vec3::ZERO).expr(), writer.lit(-3).expr());
+
     let alt_effect = effects.add(
-        EffectAsset::new(vec![512], Spawner::rate(256.0.into()), writer.finish())
+        EffectAsset::new(vec![512], Spawner::rate(102.0.into()), writer.finish())
+            .with_simulation_space(SimulationSpace::Local)
             .with_name("alternate instancing")
             .init(init_pos)
             .init(init_vel)
             .init(init_lifetime)
+            .update(radial_accel)
+            .render(ParticleTextureModifier {
+                texture,
+                ..default()
+            })
             .render(ColorOverLifetimeModifier { gradient }),
     );