From db072ad4dc181eca5a1458656b130beb43f475bf Mon Sep 17 00:00:00 2001
From: 53hornet <53hornet@gmail.com>
Date: Sat, 2 Feb 2019 23:33:15 -0500
Subject: Init.

---
 hw4/src/bvh_intersector.cpp | 53 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 hw4/src/bvh_intersector.cpp

(limited to 'hw4/src/bvh_intersector.cpp')

diff --git a/hw4/src/bvh_intersector.cpp b/hw4/src/bvh_intersector.cpp
new file mode 100644
index 0000000..6f9129f
--- /dev/null
+++ b/hw4/src/bvh_intersector.cpp
@@ -0,0 +1,53 @@
+/******************************************************************/
+/* This file is part of the homework assignments for CSCI-427/527 */
+/* at The College of William & Mary and authored by Pieter Peers. */
+/* No part of this file, whether altered or in original form, can */
+/* be distributed or used outside the context of CSCI-427/527     */
+/* without consent of either the College of William & Mary or     */
+/* Pieter Peers.                                                  */
+/******************************************************************/
+#include "bvh_intersector.h"
+#include "boundedVolumeNode.h"
+
+//////////////////
+// Constructors //
+//////////////////
+bvh_intersector::bvh_intersector(void)
+  : intersector_base()
+{
+  // Do nothing
+}
+
+bvh_intersector::bvh_intersector(const std::vector<std::shared_ptr<const boundedPrimitive>>& compounds)
+  : intersector_base()
+{
+  // quick bail out if no compounds provided
+  if(compounds.empty()) return; 
+
+  // make a copy
+  std::vector<std::shared_ptr<const boundedPrimitive>> compoundCopy = compounds;
+
+  // create node
+  //   trivial case: only a single node
+  if(compounds.size() == 1)
+    _root = compounds[0];
+  //   compound case: create a bvh
+  else
+    _root = std::shared_ptr<const boundedPrimitive>(new boundedVolumeNode(compoundCopy.begin(), compoundCopy.end()));
+}
+
+  
+/////////////
+// Methods //
+/////////////
+intersectionPoint bvh_intersector::intersect(const ray& r) const
+{
+  // check if BVH exists => empty intersection point if not.
+  if(!_root) return intersectionPoint();
+
+  // intersect
+  return _root->intersect(r);
+}
+
+
+
-- 
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