Add a RayQuery::confirm_intersection function (#822)

crates/spirv-std/src/ray_tracing.rs

@@ -288,16 +288,30 @@ impl RayQuery {
     }
 
     /// Terminates further execution of a ray query; further calls to
-    /// [`Self::proceed`] will return `false`.The value returned by any prior
+    /// [`Self::proceed`] will return `false`. The value returned by any prior
     /// execution of [`Self::proceed`] with the same ray query object must have
-    /// been true. Refer to the client API specification for more details.
+    /// been true.
     #[spirv_std_macros::gpu_only]
     #[doc(alias = "OpRayQueryTerminateKHR")]
     #[inline]
     pub unsafe fn terminate(&self) {
         asm!("OpRayQueryTerminateKHR {}", in(reg) self)
     }
 
+    /// Confirms a triangle intersection to be included in the determination
+    /// of the closest hit for a ray query.
+    ///
+    /// [`Self::proceed()`] must have been called on this object, and it must
+    /// have returned true. The current intersection candidate must have a
+    /// [`Self::get_candidate_intersection_type()`] of
+    /// [`CandidateIntersection::Triangle`].
+    #[spirv_std_macros::gpu_only]
+    #[doc(alias = "OpRayQueryConfirmIntersectionKHR")]
+    #[inline]
+    pub unsafe fn confirm_intersection(&self) {
+        asm!("OpRayQueryConfirmIntersectionKHR {}", in(reg) self)
+    }
+
     /// Returns the type of the current candidate intersection.
     ///
     /// [`Self::proceed()`] must have been called on this object, and it must have returned true.

tests/ui/arch/ray_query_proceed_khr.rs → tests/ui/arch/ray_query_confirm_intersection_khr.rs

@@ -10,5 +10,6 @@ pub fn main(#[spirv(descriptor_set = 0, binding = 0)] accel: &AccelerationStruct
         spirv_std::ray_query!(let mut handle);
         handle.initialize(accel, RayFlags::NONE, 0, Vec3::ZERO, 0.0, Vec3::ZERO, 0.0);
         assert!(handle.proceed());
+        handle.confirm_intersection();
     }
 }

tests/ui/arch/ray_query_terminate_khr.rs

@@ -9,6 +9,7 @@ pub fn main(#[spirv(descriptor_set = 0, binding = 0)] accel: &AccelerationStruct
     unsafe {
         spirv_std::ray_query!(let mut handle);
         handle.initialize(accel, RayFlags::NONE, 0, Vec3::ZERO, 0.0, Vec3::ZERO, 0.0);
+        assert!(handle.proceed());
         handle.terminate();
     }
 }