From 24da3bb44661121a465303cb7b4467d9482134a0 Mon Sep 17 00:00:00 2001
From: Graham Wihlidal <graham@wihlidal.ca>
Date: Sun, 10 Feb 2019 03:03:25 +0100
Subject: [PATCH] Implemented get_acceleration_structure_memory_requirements

---
 ash/src/extensions/nv/ray_tracing.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/ash/src/extensions/nv/ray_tracing.rs b/ash/src/extensions/nv/ray_tracing.rs
index 76c400e..4e99b78 100644
--- a/ash/src/extensions/nv/ray_tracing.rs
+++ b/ash/src/extensions/nv/ray_tracing.rs
@@ -47,6 +47,16 @@ impl RayTracing {
         self.ray_tracing_fn.destroy_acceleration_structure_nv(device, accel_struct, allocation_callbacks.as_raw_ptr());
     }
 
+    pub unsafe fn get_acceleration_structure_memory_requirements(
+        &self,
+        device: vk::Device,
+        info: &vk::AccelerationStructureMemoryRequirementsInfoNV,
+    ) -> vk::MemoryRequirements2KHR {
+        let mut requirements = mem::uninitialized();
+        self.ray_tracing_fn.get_acceleration_structure_memory_requirements_nv(device, info, &mut requirements);
+        requirements
+    }
+
     pub fn name() -> &'static CStr {
         CStr::from_bytes_with_nul(b"VK_NV_ray_tracing\0").expect("Wrong extension string")
     }