added a way to opt out of auto aabb calculation

crates/enoki2d/src/lib.rs

@@ -32,7 +32,9 @@ pub mod prelude {
     pub use super::sprite::SpriteParticle2dMaterial;
     pub use super::update::{OneShot, ParticleEffectInstance, ParticleSpawnerState, ParticleStore};
     pub use super::values::{Random, Rval};
-    pub use super::{EmissionShape, Particle2dEffect, ParticleEffectHandle, ParticleSpawner};
+    pub use super::{
+        EmissionShape, NoAutoAabb, Particle2dEffect, ParticleEffectHandle, ParticleSpawner,
+    };
 }
 
 pub(crate) const PARTICLE_VERTEX_OUT: Handle<Shader> =
@@ -127,6 +129,11 @@ impl Plugin for EnokiPlugin {
 
 pub type WithParticles = With<ParticleSpawnerState>;
 
+/// adding this component will disabled auto
+/// aabb caluclation. Aabb resolves to it's default size.
+#[derive(Component)]
+pub struct NoAutoAabb;
+
 /// The main particle spawner components
 /// has required components
 #[derive(Component, DerefMut, Deref, Clone)]

crates/enoki2d/src/update.rs

@@ -1,4 +1,4 @@
-use super::{prelude::EmissionShape, ParticleEffectHandle, Particle2dEffect};
+use super::{prelude::EmissionShape, Particle2dEffect, ParticleEffectHandle};
 use crate::values::Random;
 use bevy::{prelude::*, render::primitives::Aabb};
 use std::time::Duration;
@@ -259,7 +259,7 @@ fn update_particle(particle: &mut Particle, effect: &Particle2dEffect, delta: f3
 
 pub(crate) fn calculcate_particle_bounds(
     mut cmd: Commands,
-    spawners: Query<(Entity, &ParticleStore)>,
+    spawners: Query<(Entity, &ParticleStore), Without<crate::NoAutoAabb>>,
 ) {
     spawners.iter().for_each(|(entity, store)| {
         let particle_count = store.len();