From 464aa50da8460f3e20b8601750cde04386e23374 Mon Sep 17 00:00:00 2001
From: Roland Hieber <rohieb@rohieb.name>
Date: Mon, 18 Jan 2010 04:43:52 +0100
Subject: [PATCH] solution for assignment 2.1

---
 Scene.cxx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Scene.cxx b/Scene.cxx
index 184b7e1..69ea9ed 100644
--- a/Scene.cxx
+++ b/Scene.cxx
@@ -32,13 +32,19 @@ Scene::operator=(const Scene& s)
 void 
 Scene::Add(Primitive* p)
 {
+  m_primitives.push_back(p);
 }
 
 
 bool
 Scene::Intersect(Ray& ray)
 {
-  return false;
+  bool hit = false;
+  for( std::vector<Primitive*>::iterator i = m_primitives.begin();
+    i != m_primitives.end(); i++ ) {
+    hit |= (*i)->Intersect(ray);
+  }
+  return hit;
 }
 
 bool
@@ -50,7 +56,7 @@ Scene::Occluded(Ray& ray)
 Vec3f
 Scene::RayTrace(Ray& ray)
 {
-  return Vec3f();
+  return (Intersect(ray)) ? Vec3f(255,255,255) : Vec3f(0,0,0);
 }
 
 const Camera* 
-- 
2.20.1