diff --git a/luisa_compute/src/lang/soa.rs b/luisa_compute/src/lang/soa.rs
index cee5ed1..be9910f 100644
--- a/luisa_compute/src/lang/soa.rs
+++ b/luisa_compute/src/lang/soa.rs
@@ -5,6 +5,36 @@ use crate::prelude::*;
 /** A buffer with SOA layout.
  */
 pub struct SoaBuffer<T: Value> {
-    inner: ByteBuffer,
+    storage: ByteBuffer,
+    view: SoaBufferView<'static, T>,
     _marker: std::marker::PhantomData<T>,
 }
+
+pub struct SoaBufferView<'a, T: Value> {
+    inner: ByteBufferView<'a>,
+    _marker: std::marker::PhantomData<T>,
+}
+
+fn compute_number_of_32bits_buffers(ty: &Type) -> usize {
+    match ty {
+        Type::Void => unreachable!(),
+        Type::UserData => unreachable!(),
+        Type::Primitive(_) => todo!(),
+        Type::Vector(_) => todo!(),
+        Type::Matrix(_) => todo!(),
+        Type::Struct(_) => todo!(),
+        Type::Array(_) => todo!(),
+        Type::Opaque(_) => todo!(),
+    }
+}
+
+// impl<T> IndexRead for SoaBuffer<T>
+// where
+//     T: Value,
+// {
+//     type Element = T;
+//     fn read<I: super::index::IntoIndex>(&self, i: I) -> Expr<Self::Element> {
+//         let i = i.to_u64();
+//         todo!()
+//     }
+// }
diff --git a/luisa_compute/src/runtime.rs b/luisa_compute/src/runtime.rs
index 1006b52..c8f1491 100644
--- a/luisa_compute/src/runtime.rs
+++ b/luisa_compute/src/runtime.rs
@@ -677,10 +677,10 @@ impl Drop for StreamHandle {
 /// To prevent a scope from synchronizing on drop, use [`Scope::detach`].Note this is only
 /// available for `Scope<'static>` as certain commands such as `copy_to_async<'a>` requires
 /// synchronization.
-/// 
+///
 /// **WARNING**: attempting to circumvent `drop` on `Scope<'a>, 'a != 'static` can result in
 /// undefined behavior.
-/// 
+///
 pub struct Scope<'a> {
     handle: Arc<StreamHandle>,
     marker: PhantomData<&'a ()>,
@@ -1310,6 +1310,13 @@ pub struct RawKernelDef {
     pub(crate) resource_tracker: ResourceTracker,
 }
 
+impl RawKernelDef {
+    #[doc(hidden)]
+    pub fn kernel_module(&self) -> &KernelModule {
+        self.module.as_ref()
+    }
+}
+
 /// A kernel definition
 /// See [`Kernel<T>`] for more information
 pub struct KernelDef<T: KernelSignature> {
@@ -1317,6 +1324,13 @@ pub struct KernelDef<T: KernelSignature> {
     pub(crate) _marker: PhantomData<T>,
 }
 
+impl<T: KernelSignature> KernelDef<T> {
+    #[doc(hidden)]
+    pub fn raw_def(&self) -> &RawKernelDef {
+        &self.inner
+    }
+}
+
 /// An executable kernel
 /// Kernel creation can be done in multiple ways:
 /// - Seperate recording and compilation: