Retain skins from frame to frame.

crates/bevy_mesh/src/skinning.rs

@@ -1,4 +1,4 @@
-use bevy_asset::{Asset, Handle};
+use bevy_asset::{AsAssetId, Asset, AssetId, Handle};
 use bevy_ecs::{component::Component, entity::Entity, prelude::ReflectComponent};
 use bevy_math::Mat4;
 use bevy_reflect::prelude::*;
@@ -12,6 +12,16 @@ pub struct SkinnedMesh {
     pub joints: Vec<Entity>,
 }
 
+impl AsAssetId for SkinnedMesh {
+    type Asset = SkinnedMeshInverseBindposes;
+
+    // We implement this so that `AssetChanged` will work to pick up any changes
+    // to `SkinnedMeshInverseBindposes`.
+    fn as_asset_id(&self) -> AssetId<Self::Asset> {
+        self.inverse_bindposes.id()
+    }
+}
+
 #[derive(Asset, TypePath, Debug)]
 pub struct SkinnedMeshInverseBindposes(Box<[Mat4]>);
 

crates/bevy_pbr/Cargo.toml

@@ -73,6 +73,7 @@ smallvec = "1.6"
 nonmax = "0.5"
 static_assertions = "1"
 tracing = { version = "0.1", default-features = false, features = ["std"] }
+offset-allocator = "0.2"
 
 [lints]
 workspace = true

crates/bevy_pbr/src/meshlet/instance_manager.rs

@@ -125,7 +125,6 @@ impl InstanceManager {
             None,
             None,
             None,
-            None,
         );
 
         // Append instance data