initial commit, 4.5 stable

thirdparty/embree/kernels/bvh/bvh_intersector1.h

@@ -0,0 +1,34 @@
+// Copyright 2009-2021 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include "bvh.h"
+#include "../common/ray.h"
+#include "../common/point_query.h"
+
+namespace embree
+{
+  namespace isa
+  {
+    /*! BVH single ray intersector. */
+    template<int N, int types, bool robust, typename PrimitiveIntersector1>
+    class BVHNIntersector1
+    {
+      /* shortcuts for frequently used types */
+      typedef typename PrimitiveIntersector1::Precalculations Precalculations;
+      typedef typename PrimitiveIntersector1::Primitive Primitive;
+      typedef BVHN<N> BVH;
+      typedef typename BVH::NodeRef NodeRef;
+      typedef typename BVH::AABBNode AABBNode;
+      typedef typename BVH::AABBNodeMB4D AABBNodeMB4D;
+
+      static const size_t stackSize = 1+(N-1)*BVH::maxDepth+3; // +3 due to 16-wide store
+
+    public:
+      static void intersect (const Accel::Intersectors* This, RayHit& ray, RayQueryContext* context);
+      static void occluded  (const Accel::Intersectors* This, Ray& ray, RayQueryContext* context);
+      static bool pointQuery(const Accel::Intersectors* This, PointQuery* query, PointQueryContext* context);
+    };
+  }
+}