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author53hornet <53hornet@gmail.com>2019-02-02 23:33:15 -0500
committer53hornet <53hornet@gmail.com>2019-02-02 23:33:15 -0500
commitdb072ad4dc181eca5a1458656b130beb43f475bf (patch)
treea3c03c7f5497cb70503e2486662fa85cfb53415a /hw6/src/bvh_intersector.cpp
downloadcsci427-db072ad4dc181eca5a1458656b130beb43f475bf.tar.xz
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+/******************************************************************/
+/* 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);
+}
+
+
+