diff --git a/src/acceleration_structure.rs b/src/acceleration_structure.rs
index 1aa534b..2580fe2 100644
--- a/src/acceleration_structure.rs
+++ b/src/acceleration_structure.rs
@@ -7,6 +7,16 @@
 
 use super::*;
 
+bitflags::bitflags! {
+    #[derive(Copy, Clone, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
+    pub struct MTLAccelerationStructureUsage: usize {
+        const None = 0;
+        const Refit = (1 << 0);
+        const PreferFastBuild = (1 << 1);
+        const ExtendedLimits = (1 << 2);
+    }
+}
+
 bitflags::bitflags! {
     #[derive(Copy, Clone, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
     pub struct MTLAccelerationStructureInstanceOptions: u32 {
@@ -69,6 +79,12 @@ foreign_obj_type! {
     type ParentType = NsObject;
 }
 
+impl AccelerationStructureDescriptorRef {
+    pub fn set_usage(&self, usage: MTLAccelerationStructureUsage) {
+        unsafe { msg_send![self, setUsage: usage] }
+    }
+}
+
 pub enum MTLPrimitiveAccelerationStructureDescriptor {}
 
 foreign_obj_type! {
@@ -123,6 +139,11 @@ impl AccelerationStructureGeometryDescriptorRef {
     pub fn set_opaque(&self, opaque: bool) {
         unsafe { msg_send![self, setOpaque: opaque] }
     }
+
+    pub fn set_allow_duplicate_intersection_function_invocation(&self, allow: bool) {
+        unsafe { msg_send![self, setAllowDuplicateIntersectionFunctionInvocation: allow] }
+    }
+
     pub fn set_primitive_data_buffer(&self, buffer: Option<&BufferRef>) {
         unsafe { msg_send![self, setPrimitiveDataBuffer: buffer] }
     }
diff --git a/src/device.rs b/src/device.rs
index 9b97e32..e44a8e6 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -1609,6 +1609,11 @@ impl DeviceRef {
         unsafe { msg_send_bool![self, supportsRaytracing] }
     }
 
+    /// Only available on (macos(12.0), ios(15.0))
+    pub fn supports_raytracing_from_render(&self) -> bool {
+        unsafe { msg_send_bool![self, supportsRaytracingFromRender] }
+    }
+
     pub fn has_unified_memory(&self) -> bool {
         unsafe { msg_send![self, hasUnifiedMemory] }
     }