1 files changed, 112 insertions, 0 deletions
diff --git a/hw3/bin/HW2.cpp b/hw3/bin/HW2.cpp
new file mode 100644
index 0000000..70be45b
--- /dev/null
+++ b/hw3/bin/HW2.cpp
@@ -0,0 +1,112 @@
+#include <iostream>
+
+#include "image.h"
+#include "camera.h"
+#include "imageIO.h"
+#include "triangle.h"
+
+image generateImage(const camera& cam, const triangle& tri)
+{
+  float t;
+  vec3d barycentricCoord;
+  image result(cam.width(), cam.height());
+  
+  // for each pixel
+  for(image::size_type y=0; y < result.height(); y++)
+    for(image::size_type x=0; x < result.width(); x++)
+    {
+      // generate view ray
+      ray r = cam(x,y);
+
+      // intersect triangle
+      bool hit = tri.intersect(r, barycentricCoord, t);
+
+      // draw pixel
+      if(hit)
+	result(x,y) = color(barycentricCoord.x, barycentricCoord.y, barycentricCoord.z);
+      else 
+	result(x,y) = color(0.0f, 0.0f, 0.0f);
+    }
+
+  // Done.
+  return result;
+}
+
+int main(int argc, char** argv)
+{
+  // setup camera
+  camera cam( vec3d(0.0f, 0.0f, 0.0f),
+	      vec3d(0.0f, 0.0f, -1.0f),
+	      vec3d(0.0f, 1.0f, 0.0f),
+	      60.0f,
+	      512, 512 );
+  
+  // Image 1
+  std::cout << "Generating image 1." << std::endl;
+  
+  triangle t1( vec3d(1.0f, -1.0f, -2.0f),
+	       vec3d(0.0f, 1.0f, -2.0f),
+	       vec3d(-1.0f, -1.0f, -2.0f) );
+
+  image result1 = generateImage(cam, t1);
+  exportImage("hw2-result1.ppm", result1);
+
+
+  // Image 2
+  std::cout << "Generating image 2." << std::endl;
+
+  triangle t2( vec3d(1.0f, -1.0f, 2.0f),
+	       vec3d(0.0f, 1.0f, 2.0f),
+	       vec3d(-1.0f, -1.0f, 2.0f) );  
+
+  image result2 = generateImage(cam, t2);
+  exportImage("hw2-result2.ppm", result2);
+
+
+  // Image 3
+  std::cout << "Generating image 3." << std::endl;
+
+  triangle t3( vec3d(-1.0f, -1.0f, -2.0f),
+	       vec3d(1.0f, -1.0f, -2.0f),
+	       vec3d(0.0f, 1.0f, -2.0f) );  
+
+  image result3 = generateImage(cam, t3);
+  exportImage("hw2-result3.ppm", result3);
+
+
+  // Image 4
+  std::cout << "Generating image 4." << std::endl;
+
+  triangle t4( vec3d(-1.0f, -1.0f, 2.0f),
+	       vec3d(0.0f, 1.0f, 2.0f),
+	       vec3d(1.0f, -1.0f, 2.0f) );  
+
+  image result4 = generateImage(cam, t4);
+  exportImage("hw2-result4.ppm", result4);
+
+
+  // Image 5
+  std::cout << "Generating image 5." << std::endl;
+
+  triangle t5( vec3d(-1.0f, -1.0f, -1.0f),
+	       vec3d(1.0f, -1.0f, -1.0f),
+	       vec3d(1.0f, 1.0f, -1.0f) );  
+
+  image result5 = generateImage(cam, t5);
+  exportImage("hw2-result5.ppm", result5);
+
+
+  // Image 6
+  std::cout << "Generating image 6." << std::endl;
+
+  triangle t6( vec3d(-1.0f, 2.0f, -1.0f),
+	       vec3d(0.0f, 2.0f, 1.0f),
+	       vec3d(1.0f, 2.0f, -1.0f) );  
+
+  image result6 = generateImage(cam, t6);
+  exportImage("hw2-result6.ppm", result6);
+
+
+  // Done.
+  return 0;
+}