fixed bug in QuadraticSolver, cheap lighting working

git-svn-id: svn://anubis/fart/trunk@45 7f9b0f55-74a9-4bce-be96-3c2cd072584d

test/tests.cc

@@ -2,14 +2,20 @@
 #include <iostream>
 #include <cassert>
 #include "util/Transform.h"
+#include "shapes/Sphere.h"
 using namespace std;
 
 int main()
 {
-    Transform t;
-    t.scale(3, 2, 1);
-    t.translate(-1, 2, 3);
-    cout << "t:" << endl << t.getMatrix();
+    Sphere s(1.0);
+    Ray ray(Vector(0, -2.5, 0), Vector(0, 1, 0));
+
+    Solver::Result res = s.intersect(ray);
+
+    for (int i = 0; i < res.numResults; i++)
+    {
+        cout << "t: " << res.results[i] << endl;
+    }
 
     return 0;
 }