first commit

2025-06-07 01:59:34 -04:00
commit 388ac241f0
3558 changed files with 9116289 additions and 0 deletions
--- a/CS4451/proj1/Backup/proj1.sln
+++ b/CS4451/proj1/Backup/proj1.sln
@@ -0,0 +1,21 @@
+Microsoft Visual Studio Solution File, Format Version 8.00
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "proj1", "proj1.vcproj", "{C957954C-FC60-409E-A34D-16C23164ACF5}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfiguration) = preSolution
+		Debug = Debug
+		Release = Release
+	EndGlobalSection
+	GlobalSection(ProjectConfiguration) = postSolution
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Debug.ActiveCfg = Debug|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Debug.Build.0 = Debug|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Release.ActiveCfg = Release|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Release.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+	EndGlobalSection
+	GlobalSection(ExtensibilityAddIns) = postSolution
+	EndGlobalSection
+EndGlobal
--- a/CS4451/proj1/Backup1/proj1.sln
+++ b/CS4451/proj1/Backup1/proj1.sln
@@ -0,0 +1,21 @@
+Microsoft Visual Studio Solution File, Format Version 8.00
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "proj1", "proj1.vcproj", "{C957954C-FC60-409E-A34D-16C23164ACF5}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfiguration) = preSolution
+		Debug = Debug
+		Release = Release
+	EndGlobalSection
+	GlobalSection(ProjectConfiguration) = postSolution
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Debug.ActiveCfg = Debug|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Debug.Build.0 = Debug|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Release.ActiveCfg = Release|Win32
+		{C957954C-FC60-409E-A34D-16C23164ACF5}.Release.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+	EndGlobalSection
+	GlobalSection(ExtensibilityAddIns) = postSolution
+	EndGlobalSection
+EndGlobal
--- a/CS4451/proj1/Examples/index.htm
+++ b/CS4451/proj1/Examples/index.htm
@@ -0,0 +1,83 @@
+
+<H3> Example inputs for Project 1<br>
+If your code stays within the running time indicated below on the machines
+downstairs, you will get full efficiency credit.<br>
+Also, note that the pictures posted below are jpeg-compressed. The artifacts
+of compression are easily visible. They shouldn't be visible on the ppm files
+though - they will look much cleaner and sharper. </H3>
+
+<a href=input1.txt>input1</a> (showing effect of different specular exponents): 11sec<br>
+<img src="output1.jpg"><br><br><hr size=10><br>
+
+
+<a href=input2.txt>input2</a> (this is a bunch of spheres forming a doughnut): 34sec<br>
+<img src="output2.jpg"><br><br><hr size=10><br>
+
+
+<a href=input3.txt>input3</a>: 31sec<br>
+<img src="output3.jpg"><br><br><hr size=10><br>
+
+
+<a href=input4.txt>input4</a>: 13sec<br>
+<img src="output4.jpg"><br><br><hr size=10><br>
+
+
+<a href=input5.txt>input5</a> (400 random spheres): 150sec<br>
+<img src="output5.jpg"><br><br><hr size=10><br>
+
+
+<a href=input6.txt>input6</a>: 11sec<br>
+<img src="output6.jpg"><br><br><hr size=10><br>
+
+
+<a href=input7.txt>input7</a>: 30sec<br>
+<img src="output7.jpg"><br><br><hr size=10><br>
+
+
+<a href=input8.txt>input8</a>: 27sec<br>
+<img src="output8.jpg"><br><br><hr size=10><br>
+
+
+<a href=input9.txt>input9</a>: 18sec<br>
+<img src="output9.jpg"><br><br><hr size=10><br>
+
+
+<a href=input10.txt>input10</a>: 22sec<br>
+<img src="output10.jpg"><br><br><hr size=10><br>
+
+
+<a href=input11.txt>input11</a>: 12sec<br>
+<img src="output11.jpg"><br><br><hr size=10><br>
+
+
+<a href=input12.txt>input12</a>: 18sec<br>
+<img src="output12.jpg"><br><br><hr size=10><br>
+
+
+<a href=input13.txt>input13</a>: 13sec<br>
+<img src="output13.jpg"><br><br><hr size=10><br>
+
+
+<a href=input14.txt>input14</a>: 19sec<br>
+<img src="output14.jpg"><br><br><hr size=10><br>
+
+
+<a href=input15.txt>input15</a>: 20sec<br>
+<img src="output15.jpg"><br><br><hr size=10><br>
+
+
+<a href=input16.txt>input16</a>: 27sec<br>
+<img src="output16.jpg"><br><br><hr size=10><br>
+
+
+<a href=input17.txt>input17</a>: 21sec<br>
+<img src="output17.jpg"><br><br><hr size=10><br>
+
+
+<a href=input18.txt>input18</a>: 33sec<br>
+<img src="output18.jpg"><br><br><hr size=10><br>
+
+
+<a href=input19.txt>input19</a>: 17sec<br>
+<img src="output19.jpg"><br><br><hr size=10><br>
+
--- a/CS4451/proj1/Examples/input1.txt
+++ b/CS4451/proj1/Examples/input1.txt
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--- a/CS4451/proj1/Examples/input10.txt
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--- a/CS4451/proj1/Examples/input11.txt
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--- a/CS4451/proj1/Examples/input12.txt
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--- a/CS4451/proj1/Examples/input13.txt
+++ b/CS4451/proj1/Examples/input13.txt
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--- a/CS4451/proj1/Examples/input14.txt
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--- a/CS4451/proj1/Examples/input15.txt
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--- a/CS4451/proj1/Examples/input4.txt
+++ b/CS4451/proj1/Examples/input4.txt
@@ -0,0 +1,16 @@
+512 512
+0 0 -40
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+2 0 0
+0 2 0
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+3 3 -1 
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--- a/CS4451/proj1/Examples/input5.txt
+++ b/CS4451/proj1/Examples/input5.txt
--- a/CS4451/proj1/Examples/input6.txt
+++ b/CS4451/proj1/Examples/input6.txt
@@ -0,0 +1,14 @@
+512 512
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+2
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+2.5 .5 -3 1
+.5 .5 .5 .2 .2 .2 .3 4
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+0 0 3 4
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--- a/CS4451/proj1/Examples/input7.txt
+++ b/CS4451/proj1/Examples/input7.txt
@@ -0,0 +1,132 @@
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--- a/CS4451/proj1/Examples/input8.txt
+++ b/CS4451/proj1/Examples/input8.txt
@@ -0,0 +1,51 @@
+512 512
+0 0 20
+-1 -1 1
+2 0 0
+0 2 0
+3 10 10 0.8
+0.2
+9
+T
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+-1 1 1
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+0.12321 -0.12321 -1
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+-1 1 1
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+-0.12321 0.12321 -1
+1 1 0 1 1 0 0 1
+S
+0 0 0 0.5
+1 0 1 1 0 1 0 1
--- a/CS4451/proj1/Examples/input9.txt
+++ b/CS4451/proj1/Examples/input9.txt
@@ -0,0 +1,21 @@
+512 512
+0 0 20
+-1 -1 1
+2 0 0
+0 2 0
+3 2 5 0.8
+0.2
+3
+T
+0 0.2 1
+1 1 0.5
+-1 1 0.5
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+T
+0 -0.2 1
+1 -1 0.5
+-1 -1 0.5
+0 0 1 0 0 1 0 1
+S
+0 0 0 0.7
+0 1 0 0 1 0 0 1
--- a/CS4451/proj1/Examples/output1.jpg
+++ b/CS4451/proj1/Examples/output1.jpg
--- a/CS4451/proj1/Examples/output10.jpg
+++ b/CS4451/proj1/Examples/output10.jpg
--- a/CS4451/proj1/Examples/output11.jpg
+++ b/CS4451/proj1/Examples/output11.jpg
--- a/CS4451/proj1/Examples/output12.jpg
+++ b/CS4451/proj1/Examples/output12.jpg
--- a/CS4451/proj1/Examples/output13.jpg
+++ b/CS4451/proj1/Examples/output13.jpg
--- a/CS4451/proj1/Examples/output14.jpg
+++ b/CS4451/proj1/Examples/output14.jpg
--- a/CS4451/proj1/Examples/output15.jpg
+++ b/CS4451/proj1/Examples/output15.jpg
--- a/CS4451/proj1/Examples/output16.jpg
+++ b/CS4451/proj1/Examples/output16.jpg
--- a/CS4451/proj1/Examples/output17.jpg
+++ b/CS4451/proj1/Examples/output17.jpg
--- a/CS4451/proj1/Examples/output18.jpg
+++ b/CS4451/proj1/Examples/output18.jpg
--- a/CS4451/proj1/Examples/output19.jpg
+++ b/CS4451/proj1/Examples/output19.jpg
--- a/CS4451/proj1/Examples/output2.jpg
+++ b/CS4451/proj1/Examples/output2.jpg
--- a/CS4451/proj1/Examples/output3.jpg
+++ b/CS4451/proj1/Examples/output3.jpg
--- a/CS4451/proj1/Examples/output4.jpg
+++ b/CS4451/proj1/Examples/output4.jpg
--- a/CS4451/proj1/Examples/output5.jpg
+++ b/CS4451/proj1/Examples/output5.jpg
--- a/CS4451/proj1/Examples/output6.jpg
+++ b/CS4451/proj1/Examples/output6.jpg
--- a/CS4451/proj1/Examples/output7.jpg
+++ b/CS4451/proj1/Examples/output7.jpg
--- a/CS4451/proj1/Examples/output8.jpg
+++ b/CS4451/proj1/Examples/output8.jpg
--- a/CS4451/proj1/Examples/output9.jpg
+++ b/CS4451/proj1/Examples/output9.jpg
--- a/CS4451/proj1/Makefile
+++ b/CS4451/proj1/Makefile
@@ -0,0 +1,40 @@
+
+CC = g++
+OPT = -Wno-deprecated -O3
+LIBS = -lm
+SRC = proj1.cpp functions.cpp image.cpp ray.cpp raytracer.cpp
+OBJ = proj1.o functions.o image.o ray.o raytracer.o
+INC = defs.h functions.h
+TARGET = proj1
+MISC = Makefile
+
+all: $(TARGET)
+
+$(TARGET) : $(OBJ) $(MISC)
+	$(CC) $(OPT) -o $(TARGET) $(OBJ) $(LIBS)
+
+%.o : %.cpp $(MISC) $(INC)
+	$(CC) $(OPT) -c -o $@ $<
+
+clean:
+	rm -f $(OBJ) $(TARGET)
+
+
+
+#all : proj1
+
+#proj1 : proj1.o functions.o image.o ray.o
+#	$(CC) $(OPT) -o proj1 proj1.o functions.o $(LIBS)
+
+#proj1.o : proj1.c defs.h
+#	$(CC) $(OPT) -c proj1.c
+
+#functions.o: functions.cpp defs.h functions.h
+#	$(CC) $(OPT) -c functions.cpp
+
+#image.o: image.cpp defs.h
+#	$(CC) $(OPT) -c image.cpp
+
+#clean: 
+#	rm *.o proj1
+
--- a/CS4451/proj1/Output/output1.ppm
+++ b/CS4451/proj1/Output/output1.ppm
--- a/CS4451/proj1/Output/output10.ppm
+++ b/CS4451/proj1/Output/output10.ppm
--- a/CS4451/proj1/Output/output11.ppm
+++ b/CS4451/proj1/Output/output11.ppm
--- a/CS4451/proj1/Output/output12.ppm
+++ b/CS4451/proj1/Output/output12.ppm
--- a/CS4451/proj1/Output/output13.ppm
+++ b/CS4451/proj1/Output/output13.ppm
--- a/CS4451/proj1/Output/output14.ppm
+++ b/CS4451/proj1/Output/output14.ppm
--- a/CS4451/proj1/Output/output15.ppm
+++ b/CS4451/proj1/Output/output15.ppm
--- a/CS4451/proj1/Output/output16.ppm
+++ b/CS4451/proj1/Output/output16.ppm
--- a/CS4451/proj1/Output/output17.ppm
+++ b/CS4451/proj1/Output/output17.ppm
--- a/CS4451/proj1/Output/output18.ppm
+++ b/CS4451/proj1/Output/output18.ppm
--- a/CS4451/proj1/Output/output19.ppm
+++ b/CS4451/proj1/Output/output19.ppm
--- a/CS4451/proj1/Output/output2.ppm
+++ b/CS4451/proj1/Output/output2.ppm
--- a/CS4451/proj1/Output/output3.ppm
+++ b/CS4451/proj1/Output/output3.ppm
--- a/CS4451/proj1/Output/output4.ppm
+++ b/CS4451/proj1/Output/output4.ppm
--- a/CS4451/proj1/Output/output5.ppm
+++ b/CS4451/proj1/Output/output5.ppm
--- a/CS4451/proj1/Output/output6.ppm
+++ b/CS4451/proj1/Output/output6.ppm
--- a/CS4451/proj1/Output/output7.ppm
+++ b/CS4451/proj1/Output/output7.ppm
--- a/CS4451/proj1/Output/output8.ppm
+++ b/CS4451/proj1/Output/output8.ppm
--- a/CS4451/proj1/Output/output9.ppm
+++ b/CS4451/proj1/Output/output9.ppm
--- a/CS4451/proj1/Submission/proj1.tar.gz
+++ b/CS4451/proj1/Submission/proj1.tar.gz
--- a/CS4451/proj1/defs.h
+++ b/CS4451/proj1/defs.h
@@ -0,0 +1,144 @@
+#ifndef _DEFS_H_
+#define _DEFS_H_
+
+//#define bDebug
+
+#include <ostream>
+#include "functions.h"
+
+using namespace std;
+
+typedef struct {
+    double r,g,b;
+} RGB;
+
+typedef struct Vector{
+    
+public:
+    double x = NAN, y = NAN, z = NAN;
+    struct Vector operator+(Vector &other);
+    struct Vector operator-(Vector &other);
+    struct Vector operator*(Vector &other);
+    struct Vector operator/(Vector &other);
+    struct Vector operator*(int &other);
+    struct Vector operator*(double &other);
+} Vector;
+
+typedef Vector Point;
+
+typedef struct {
+    Point center;
+    double intensity;
+} Light;  
+
+typedef struct MaterialAttributes{
+    double k_dr, k_dg, k_db; //diffuse properties, rgb
+    double k_ar, k_ag, k_ab; //ambient properties, rgb
+    double k_s;              //specular properties, rgb same
+    double n_spec;           //specular exponent
+
+    
+
+} MaterialAttributes;
+
+std::ostream &operator<< ( std::ostream &ofs, struct MaterialAttributes m );
+
+class Ray {
+    public:
+        Point origin = Point();
+        Vector direction = Vector();
+        
+        Ray() {}
+        Ray (Point start, Point end);
+
+        double length = NAN;
+
+        Ray operator+(Ray &other);
+        Ray operator-(Ray &other);
+};
+
+class Primitive {
+    public:
+        MaterialAttributes attrib;
+
+        virtual double intersectsWith(Ray)=0;
+        virtual bool intersectsWithSelf(Point p, Light l, Point v)=0;
+        virtual Vector normal(Point p, Light l)=0;
+        virtual void printName() { printf("I am a primitive. Wheeee"); }
+};
+
+class Sphere : public Primitive {
+    public:
+        Point center;
+        double radius;
+
+        double intersectsWith(Ray ray);
+        bool intersectsWithSelf(Point p, Light l, Point v);
+        void printName();
+        Vector normal(Point p);
+        Vector normal(Point p, Light l);
+
+        friend std::ostream &operator<< ( std::ostream &ofs,  Sphere s );
+};
+
+class Triangle : public Primitive {
+    public:
+        Point a1, a2, a3;
+
+        double intersectsWith(Ray ray); 
+        bool intersectsWithSelf(Point p, Light l, Point v);
+        void printName();
+        Vector normal(Point p, Light l);
+        Vector normal(Point p);
+
+        friend std::ostream &operator<< ( std::ostream &ofs,  Triangle t );
+};
+
+
+
+/* ------------ image class ------------ */
+class image {
+    int xsize,ysize; // resolution
+    RGB *rgb;        // pixel intensities
+    public:
+        image ( int m, int n );       // allocates image of specified size
+        RGB &pixel ( int i, int j );  // access to a specific pixel
+
+        friend std::ostream &operator<< ( std::ostream &ofs, image i );
+    // dumps image as a ppm file
+};
+
+/* ------------- RayTracer ------------ */
+class RayTracer {
+    public:
+        int m, n;           // specify the output image size, assuming m x n
+        Point e, l;         // viewpoint e, lower left corner l
+        Vector h, v;        // vectors vertical and horizontal edges
+        Light light;        // Light source
+        double ambience;     // Ambient light intensity
+        int numPrimitives;  // Number of Primitives
+        std::vector<Primitive*> primitives;
+        
+        void getPixelAt(int x, int y, RGB& pixel);
+    private:
+        //double length(Point a, Point b);
+
+};
+
+/*void printObject(Point p);*/
+void printObject(Vector v);
+void printObject(int i);
+void printObject(double f);
+void printObject(Light l);
+void printObject(MaterialAttributes attrib);
+void scanInput(Point &point, char* input);
+void scanInput(MaterialAttributes &attrib, char* input);
+void scanInput(vector<Primitive*> &primitives, int numPrimitives, char* input);
+void scanInput(Vector &v, char* input);
+void scanInput(Light &light, char* input);
+
+double length(Point p, Point p2);
+double length(Vector p);
+double dot(Vector,Vector);
+
+#endif
--- a/CS4451/proj1/functions.cpp
+++ b/CS4451/proj1/functions.cpp
@@ -0,0 +1,442 @@
+#include <math.h>
+#include <iostream>
+#include <stdlib.h>
+
+#include <vector>
+
+#include "defs.h"
+#include "functions.h"
+
+using namespace std;
+
+void printObject(Vector v) {
+    cerr << v.x << " " << v.y << " " << v.z << endl;
+}
+
+void printObject(int i) {
+    cerr << i << endl;
+}
+
+void printObject(double f) {
+    cerr << f << endl;
+}
+
+void printObject(Light l) {
+    cerr << l.center.x << " " << l.center.y << " " << l.center.z << " I: " << l.intensity << endl;
+}
+
+
+void printObject(MaterialAttributes attrib) {
+    cerr << " k_dr, k_dg, k_db " << attrib.k_dr << " " << attrib.k_dg << " " << attrib.k_db << " "
+        << attrib.k_ar << " " << attrib.k_ag << " " << attrib.k_ab << " "
+        << attrib.k_s << " " << attrib.n_spec << endl;
+}
+
+
+void scanInput(MaterialAttributes &attrib, char* input) {
+    char *pEnd;
+
+    cin.getline(input,81);
+
+    attrib.k_dr = strtod(input,&pEnd);
+    attrib.k_dg = strtod(pEnd,&pEnd);
+    attrib.k_db = strtod(pEnd,&pEnd);
+    attrib.k_ar = strtod(pEnd,&pEnd);
+    attrib.k_ag = strtod(pEnd,&pEnd);
+    attrib.k_ab = strtod(pEnd,&pEnd);
+    attrib.k_s = strtod(pEnd,&pEnd);
+    attrib.n_spec = strtod(pEnd,NULL);
+}
+
+void scanInput(vector<Primitive*> &primitives, int numPrimitives, char* input) {
+    int i;
+    char *pEnd;
+
+    for (i = 0; i < numPrimitives; i++) {
+        cin.getline(input,81);
+
+        switch (input[0]) {
+            case 'S': {
+                Sphere* sphere = new Sphere();
+
+                cin.getline(input,81);
+                sphere->center.x = strtod(input, &pEnd);
+                sphere->center.y = strtod(pEnd, &pEnd);
+                sphere->center.z = strtod(pEnd, &pEnd);
+                sphere->radius = strtod(pEnd,NULL);
+                
+                scanInput(sphere->attrib, input);
+
+                primitives.push_back(sphere);
+
+                //printObject(sphere->attrib);
+
+                #ifdef bDebug
+                    cout << "Got Sphere.." << endl;
+                    printObject(sphere->center);
+                    printObject(sphere->radius);
+                    printObject(sphere->attrib);
+                #endif
+                break;
+                      }
+
+            case 'T': {
+                Triangle* triangle = new Triangle();
+
+                scanInput(triangle->a1,input);
+                scanInput(triangle->a2,input);
+                scanInput(triangle->a3,input);
+            
+                scanInput(triangle->attrib, input);
+
+                primitives.push_back(triangle);
+
+                #ifdef bDebug
+                    cout << "Got Triangle.." << endl;
+                    printObject(triangle->a1);
+                    printObject(triangle->a2);
+                    printObject(triangle->a3);
+                    printObject(triangle->attrib);
+
+                #endif
+                    break;
+                      }
+
+            default:
+                cout << "Error bad\n";
+                break;
+
+        };
+    }
+
+}
+
+
+
+
+void scanInput(Vector &v, char* input) {
+    char* pEnd;
+    
+    cin.getline(input, 81);
+    v.x = strtod(input,&pEnd);
+    v.y = strtod(pEnd,&pEnd);
+    v.z = strtod(pEnd,NULL);
+}
+void scanInput(Light &light, char* input) {
+    char* pEnd;
+    
+    cin.getline(input,81);
+    light.center.x = strtod(input, &pEnd);
+    light.center.y = strtod(pEnd, &pEnd);
+    light.center.z = strtod(pEnd, &pEnd);
+    light.intensity = strtod(pEnd, NULL);
+}
+
+
+
+/* Useful operator overloads */
+
+/* ------------- <Vector> -------------*/
+
+Vector Vector::operator+(Vector &other) {
+    Vector v;
+
+    v.x = x + other.x;
+    v.y = y + other.y;
+    v.z = z + other.z;
+
+    return v;
+}
+
+Vector Vector::operator-(Vector &other) {
+    Vector v;
+
+    v.x = x - other.x;
+    v.y = y - other.y;
+    v.z = z - other.z;
+
+    return v;
+}
+
+Vector Vector::operator*(Vector &other) {
+    Vector v;
+
+    v.x = x * other.x;
+    v.y = y * other.y;
+    v.z = z * other.z;
+
+    return v;
+}
+
+Vector Vector::operator/(Vector &other) {
+    Vector v;
+
+    v.x = x / other.x;
+    v.y = y / other.y;
+    v.z = z / other.z;
+
+    return v;
+}
+
+Vector Vector::operator*(int &other) {
+    Vector v;
+
+    v.x = x * other;
+    v.y = y * other;
+    v.z = z * other;
+
+    return v;
+}
+
+Vector Vector::operator*(double &other) {
+    Vector v;
+
+    v.x = x * other;
+    v.y = y * other;
+    v.z = z * other;
+
+    return v;
+}
+
+
+/* ------------ </Vector> ----------- */
+
+/* ------------ <ostream> ----------- */
+
+ostream &operator<< ( ostream &ofs, struct MaterialAttributes m ) {
+    ofs << " Material Attributes: " << endl;
+    ofs << "  k_dr: " << m.k_dr << " k_dg: " << m.k_dg << " k_db: " << m.k_db << endl;
+    ofs << "  k_ar: " << m.k_ar << " k_ag: " << m.k_ag << " k_ab: " << m.k_ab << endl;
+    ofs << "  k_s: " << m.k_s << " n_spec: " << m.n_spec << endl;
+    return ofs;
+}
+
+ostream &operator<< ( ostream &ofs,  Sphere s ) {
+    ofs << "Sphere: " << endl;
+    ofs << " Center: " << "(" << s.center.x << "," 
+        << s.center.y << "," << s.center.z << endl;
+
+    return ofs;
+}
+
+
+ostream &operator<< ( ostream &ofs,  Triangle t ) {
+    ofs << "Triangle: " << endl;
+    return ofs;
+}
+
+
+/* ------------ </ostream> ------------- */
+
+
+/* ----------- Primitive stuff ----------- */
+
+double length(Vector p) {
+    double toRet;
+
+    toRet = pow(p.x,2)+pow(p.y,2)+pow(p.z,2);
+    toRet = sqrt(toRet);
+
+    return toRet;
+}
+
+double dot(Vector v1, Vector v2) {
+    double toRet;
+
+    toRet = (v1.x*v2.x) + (v1.y*v2.y) + (v1.z*v2.z);
+
+    return toRet;
+}
+
+inline double discriminant(double A, double B, double C) {
+    return ((B*B) - (4*A*C));
+}
+
+void Sphere::printName() {
+    cout << "This is of type Sphere" << endl;
+}
+
+bool Sphere::intersectsWithSelf(Point p, Light l, Point v) {
+    Vector cp, pl;
+
+    cp = p - this->center;
+    pl = l.center - p;
+
+    if (dot(cp,pl) < 0) {
+        return true;
+    } else return false;
+    
+}
+
+
+double Sphere::intersectsWith(Ray ray) {
+
+    double C = pow(length(ray.origin - this->center),2) - pow(this->radius,2);
+    double B;
+    double A;
+    double discrim;
+
+    A = pow(length(ray.direction),2);
+    B = 2*dot(ray.direction,ray.origin - this->center);
+
+    discrim = discriminant(A,B,C);
+    
+    if (discrim < 0) {
+        return -1;
+    } else if (discrim > 0) {
+        double a, b;
+        a = ((-1*B)+sqrt(discrim))/(2*A);
+        b = ((-1*B)-sqrt(discrim))/(2*A);
+        if (b>=0) return b;
+        else return a;
+    } else { //discrim==0
+        return ((-1*B) / (2*A));    
+    }
+}
+
+void Triangle::printName() {
+    cout << "This is of type Triangle" << endl;
+}
+
+inline Vector cross(Vector a, Vector b) {
+    Vector toRet;
+
+    toRet.x = ( (a.y*b.z) - (a.z*b.y) ); //i
+    toRet.y = ( (a.z*b.x) - (a.x*b.z) ); //j
+    toRet.z = ( (a.x*b.y) - (a.y*b.x) ); //k
+
+    return toRet;
+}
+
+inline char bestCoord(Vector v1) {
+    //Lazy fast method
+    if (abs((int)v1.x) > abs((int)v1.y)) {
+        if (abs((int)v1.x) > abs((int)v1.z)) {
+            return 'x';
+        } else {
+            return 'z';
+        }
+    } else {
+        if (abs((int)v1.y) > abs((int)v1.z)) {
+            return 'y';
+        } else {
+            return 'z';
+        }
+    }
+}
+
+Vector Sphere::normal(Point p, Light l) {
+    Vector normal;
+
+    normal = p-this->center;
+
+    return normal;
+}
+
+Vector Triangle::normal(Point p, Light l) {
+    Vector normal, a1a2, a1a3, pl;
+
+    a1a2 = this->a2 - this->a1;
+    a1a3 = this->a3 - this->a1;
+
+    normal = cross(a1a2,a1a3);
+
+    pl = l.center - p;
+
+    if (dot(normal,pl) < 0) {
+        //normal = normal * ((double)-1.0);
+        //STUPID OPERATOR OVERLOADING DOESNT WORK
+        normal.x = normal.x * -1;
+        normal.y = normal.y * -1;
+        normal.z = normal.z * -1;
+    }
+    
+    return normal;
+}
+
+Vector Triangle::normal(Point p) {
+    Vector normal, a1a2, a1a3, pl;
+
+    a1a2 = this->a2 - this->a1;
+    a1a3 = this->a3 - this->a1;
+
+    normal = cross(a1a2,a1a3);
+
+    return normal;
+}
+
+bool Triangle::intersectsWithSelf(Point p, Light l, Point v) {
+    Vector normal = this->normal(p,l), pv;
+
+    pv = v - p;
+
+    if (dot(normal,pv) < 0) {
+        return true;
+    } else return false;
+}
+
+double Triangle::intersectsWith(Ray ray) {
+    Vector normal = this->normal(this->a1);
+
+    //calculate t
+    double top = dot(ray.origin - a1,normal);
+    double bottom = dot(ray.direction, normal);
+    double t = -1.0 * (top/bottom);
+
+    if (t < 0) {
+        return -1;
+    } else {
+        Point p = (ray.direction * t) + ray.origin;
+        
+        Vector pa1 = this->a1 - p;
+        Vector pa2 = this->a2 - p;
+        Vector pa3 = this->a3 - p;
+        
+        Vector pa1pa2 = cross(pa1,pa2);
+        Vector pa2pa3 = cross(pa2,pa3);
+        Vector pa3pa1 = cross(pa3,pa1);
+        
+        char best = bestCoord(pa1pa2);
+
+        switch (best) {
+            case 'x':
+                if ((pa1pa2.x > 0 && pa2pa3.x > 0 && pa3pa1.x > 0)
+                    || (pa1pa2.x < 0 && pa2pa3.x < 0 && pa3pa1.x < 0))
+                {
+                    return t;
+                } else {
+                    return -1;
+                }
+            case 'y':
+                if ((pa1pa2.y > 0 && pa2pa3.y > 0 && pa3pa1.y > 0)
+                    || (pa1pa2.y < 0 && pa2pa3.y < 0 && pa3pa1.y < 0))
+                {
+                    return t;
+                } else {
+                    return -1;
+                }
+            case 'z':
+                if ((pa1pa2.z > 0 && pa2pa3.z > 0 && pa3pa1.z > 0)
+                    || (pa1pa2.z < 0 && pa2pa3.z < 0 && pa3pa1.z < 0))
+                {
+                    return t;
+                } else {
+                    return -1;
+                }
+            default:
+                cerr << "How?";
+        };
+        
+    }   
+
+    return -1;
+}
+
+
+
+
+
+
+
+
+
--- a/CS4451/proj1/functions.h
+++ b/CS4451/proj1/functions.h
@@ -0,0 +1,18 @@
+#ifndef _FUNCTIONS_H_
+#define _FUNCTIONS_H_
+
+/*void printObject(Point p);
+void printObject(Vector v);
+void printObject(int i);
+void printObject(double f);
+void printObject(Light l);
+void printObject(MaterialAttributes attrib);
+void scanInput(Point &point, char* input);
+void scanInput(MaterialAttributes &attrib, char* input);
+void scanInput(vector<Primitive*> &primitives, int numPrimitives, char* input);
+void scanInput(Vector &v, char* input);
+void scanInput(Light &light, char* input);
+
+double length(Point p, Point p2);*/
+
+#endif
--- a/CS4451/proj1/image.cpp
+++ b/CS4451/proj1/image.cpp
@@ -0,0 +1,61 @@
+#include <math.h>
+#include <iostream>
+#include <stdlib.h>
+
+
+#include <vector>
+
+
+#include "defs.h"
+#include "functions.h"
+
+
+/* ----------- functionality of image class ---------- */
+
+image::image ( int m, int n ) : xsize(m), ysize(n)
+{
+    rgb = new RGB[m*n];
+}
+
+/* ----------------------- */
+
+RGB &image::pixel ( int i, int j )
+{
+    return rgb[i+xsize*j];
+}
+
+/* ----------------------- */
+
+int clampnround ( double x )
+{
+    if (x>255)
+        x = 255;
+    if (x<0) 
+        x = 0;
+    return (int)floor(x+.5);
+}
+
+ostream &operator<< ( ostream &ofs, RGB c )
+{
+    int rgb[3];
+    rgb[0] = clampnround(255*c.r);
+    rgb[1] = clampnround(255*c.g);
+    rgb[2] = clampnround(255*c.b);
+    ofs << rgb[0] << " " << rgb[1] << " " << rgb[2] << endl;
+    return ofs;
+}
+
+ostream &operator<< ( ostream &ofs, image i )
+{
+    int x,y;
+
+    ofs << "P3" << endl;
+    ofs << i.xsize << " " << i.ysize << endl;
+    ofs << "255" << endl;
+    for ( y=i.ysize-1; y>=0; y-- )
+        for ( x=0; x<i.xsize; x++ )
+            ofs << i.pixel(x,y);
+    return ofs;
+}
+
+/* -------- </image class> --------*/
--- a/CS4451/proj1/proj1.c
+++ b/CS4451/proj1/proj1.c
@@ -0,0 +1,123 @@
+
+/*
+put your name here, just in case ****
+Project 1: Ray Tracing
+CS4451A, Spring 2005
+*/
+
+#include <math.h>
+#include <fstream.h>
+#include <iostream.h>
+#include <stdlib.h>
+#include <vector.h>
+#include "defs.h"
+#include "functions.h"
+
+/* ------------- Main ------------ */
+
+int main ( )
+{
+    
+    /* First, get the necessary data */
+    int m, n;           // specify the output image size, assuming m x n
+    Point e, l;         // viewpoint e, lower left corner l
+    Vector h, v;        // vectors vertical and horizontal edges
+    Light light;        // Light source
+    float ambience;     // Ambient light intensity
+    int numPrimitives;  // Number of Primitives
+    vector<Primitive> primitives;
+    
+
+    /* ------------ Scan Input ---------------- */
+
+    /* Begin scanning the input assuming 80 column lines */
+    char* input = (char*)malloc(sizeof(char) * 81);
+    char* pEnd;
+    
+    //Get m and n
+    cin.getline(input, 81);
+    m = strtol(input, &pEnd, 10);
+    n = strtol(pEnd,NULL,10);
+    #ifdef bDebug
+        printObject(m);
+        printObject(n);
+    #endif
+
+    //Get e
+    scanInput(e,input);
+    #ifdef bDebug
+        printObject(e);
+    #endif
+
+    //Get l
+    scanInput(l,input);
+    #ifdef bDebug
+        printObject(l);
+    #endif
+
+    //Get h
+    scanInput(h,input);
+    #ifdef bDebug
+        printObject(h);
+    #endif
+
+    //Get v
+    scanInput(v,input);
+    #ifdef bDebug
+        printObject(v);
+    #endif
+
+    //Get Light
+    scanInput(light,input);
+    #ifdef bDebug
+        printObject(light);
+    #endif
+
+    //Get ambient light level
+    cin.getline(input,81);
+    ambience = strtof(input, NULL);
+    #ifdef bDebug
+        printObject(ambience);
+    #endif
+
+    //Get Primitive count
+    cin.getline(input,81);
+    numPrimitives = strtol(input,NULL,10);
+    primitives.resize(numPrimitives);
+    #ifdef bDebug
+        printObject(numPrimitives);
+    #endif
+
+    scanInput(primitives,numPrimitives, input);
+
+    /* ------------ Do the actual raytracing ---------------- */
+
+
+    #if 0
+    int x,y;
+
+    /* create a little example.... */
+
+    image img(256,256);
+    for ( x=0; x<256; x++ ) {
+        for ( y=0; y<256; y++ )
+        {
+            RGB &pix = img.pixel(x,y);
+
+            /* call your raytracer here, then assign the rgb values
+             it returns to the pixel */
+
+            pix.r = x/255.0;
+            pix.g = y/255.0;
+            pix.b = (2-(x/255.0+y/255.0))/2;
+        }
+    }
+
+    /* dump the image to standard output */
+    cout << img;
+    #endif
+
+
+
+    return 0;
+}
--- a/CS4451/proj1/proj1.cpp
+++ b/CS4451/proj1/proj1.cpp
@@ -0,0 +1,136 @@
+
+/*
+put your name here, just in case ****
+Project 1: Ray Tracing
+CS4451A, Spring 2005
+*/
+
+#include <math.h>
+#include <iostream>
+#include <stdlib.h>
+
+#include <vector>
+
+#include "defs.h"
+#include "functions.h"
+
+#include <thread>
+#include <mutex>
+#include <chrono>
+
+/* ------------- Main ------------ */
+
+static void DoRayTraceST(RayTracer &tracer, image &img)
+{
+    //RayTracer tracer;
+    for (int x = 0; x < tracer.m; x++) {
+        for (int y = 0; y < tracer.n; y++)
+        {
+            RGB& pix = img.pixel(x, y);
+
+            tracer.getPixelAt(x, y, pix);
+        }
+    }
+}
+
+static void DoRayTraceMT(RayTracer& tracer, image& img)
+{
+    static mutex lock;
+    static int currentColumn;
+
+    currentColumn = 0;
+
+    auto threadFunc = [&]() {
+        int x = 0;
+
+        while (true)
+        {
+            lock.lock();
+            x = currentColumn;
+            currentColumn++;
+            lock.unlock();
+
+            if (!(x < tracer.m)) break;
+
+            for (int y = 0; y < tracer.n; y++)
+            {
+                RGB& pix = img.pixel(x, y);
+                tracer.getPixelAt(x, y, pix);
+            }
+        } ;
+    };
+
+    const auto threadCount = std::thread::hardware_concurrency();
+    std::vector<std::thread> threads;
+    threads.reserve(threadCount);
+
+    for (unsigned int i = 0; i < threadCount; i++)
+    {
+        threads.push_back(std::thread(threadFunc));
+    }
+
+    for (auto& t : threads) 
+    {
+        t.join();
+    }
+}
+
+int main (int argc, char **argv )
+{    
+    using namespace std;
+
+    /* First, get the necessary data */
+    RayTracer tracer;
+    
+    /* Begin scanning the input assuming 80 column lines */
+    char* input = (char*)malloc(sizeof(char) * 81);
+    char* pEnd;
+    
+    //Get m and n
+    cin.getline(input, 81);
+    tracer.m = strtol(input, &pEnd, 10);
+    tracer.n = strtol(pEnd,NULL,10);
+    //Get e
+    scanInput(tracer.e,input);
+    //Get l
+    scanInput(tracer.l,input);
+    //Get h
+    scanInput(tracer.h,input);
+    //Get v
+    scanInput(tracer.v,input);
+    //Get Light
+    scanInput(tracer.light,input);
+    //Get ambient light level
+    cin.getline(input,81);
+    tracer.ambience = strtod(input, NULL);
+    //Get Primitives
+    cin.getline(input,81);
+    tracer.numPrimitives = strtol(input,NULL,10);
+    scanInput(tracer.primitives,tracer.numPrimitives, input);
+
+    /* ------------ Do the actual raytracing ---------------- */
+    image img(tracer.m,tracer.n);
+    
+    auto start = std::chrono::high_resolution_clock::now();
+    
+    if (true || argc > 1)
+    {
+        cerr << "Starting MT ray trace." << std::endl;
+        DoRayTraceMT(tracer, img);
+    }
+    else
+    {
+        cerr << "Starting ST ray trace." << std::endl;
+        DoRayTraceST(tracer, img);
+    }
+
+    auto end = std::chrono::high_resolution_clock::now();
+
+    std::chrono::duration<double> diff = end - start;
+    cerr << "Time to generate image: " << diff.count() * 1000 << " ms." << std::endl;
+
+    /* dump the image to standard output */
+    cout << img;
+    return 0;
+
+}
--- a/CS4451/proj1/proj1.pdf
+++ b/CS4451/proj1/proj1.pdf
--- a/CS4451/proj1/proj1.tar.tar
+++ b/CS4451/proj1/proj1.tar.tar
--- a/CS4451/proj1/proj1_vs/proj1_vs.sln
+++ b/CS4451/proj1/proj1_vs/proj1_vs.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
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+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
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+		{79ED86D3-8C58-44BE-9E85-BD80B3D562E1}.Debug|x86.Build.0 = Debug|Win32
+		{79ED86D3-8C58-44BE-9E85-BD80B3D562E1}.Release|x64.ActiveCfg = Release|x64
+		{79ED86D3-8C58-44BE-9E85-BD80B3D562E1}.Release|x64.Build.0 = Release|x64
+		{79ED86D3-8C58-44BE-9E85-BD80B3D562E1}.Release|x86.ActiveCfg = Release|Win32
+		{79ED86D3-8C58-44BE-9E85-BD80B3D562E1}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {FCC5BD28-9AD4-4CF3-914C-1EAC0BB1D994}
+	EndGlobalSection
+EndGlobal
--- a/CS4451/proj1/proj1_vs/proj1_vs.vcxproj
+++ b/CS4451/proj1/proj1_vs/proj1_vs.vcxproj
@@ -0,0 +1,146 @@
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+    <CharacterSet>Unicode</CharacterSet>
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+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
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+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
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+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
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+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <Optimization>Full</Optimization>
+      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\functions.cpp" />
+    <ClCompile Include="..\image.cpp" />
+    <ClCompile Include="..\proj1.cpp" />
+    <ClCompile Include="..\ray.cpp" />
+    <ClCompile Include="..\raytracer.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\defs.h" />
+    <ClInclude Include="..\functions.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/CS4451/proj1/proj1_vs/proj1_vs.vcxproj.filters
+++ b/CS4451/proj1/proj1_vs/proj1_vs.vcxproj.filters
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\functions.cpp">
+      <Filter>Source Files</Filter>
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+    <ClCompile Include="..\image.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\proj1.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\ray.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\raytracer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\defs.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\functions.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
--- a/CS4451/proj1/ray.cpp
+++ b/CS4451/proj1/ray.cpp
@@ -0,0 +1,38 @@
+#include <math.h>
+#include <ostream>
+#include <stdlib.h>
+
+
+#include <vector>
+
+
+#include "defs.h"
+#include "functions.h"
+
+
+Ray::Ray (Point start, Point end) {
+    this->direction = (end-start);
+    this->origin = end;
+}
+
+Ray Ray::operator+(Ray &other) {
+    Ray r;
+
+    r.direction = direction + other.direction;
+    r.origin = origin + other.origin;
+
+    return r;
+
+}
+
+Ray Ray::operator-(Ray &other) {
+    Ray r;
+
+    r.direction = direction - other.direction;
+    r.origin = origin - other.origin;
+
+    return r;
+
+}
+
+
--- a/CS4451/proj1/raytracer.cpp
+++ b/CS4451/proj1/raytracer.cpp
@@ -0,0 +1,163 @@
+#include <math.h>
+#include <iostream>
+#include <stdlib.h>
+
+
+#include <vector>
+
+
+#include "defs.h"
+#include "functions.h"
+
+void RayTracer::getPixelAt(int x, int y, RGB& pixel) {
+    Point p = l;
+
+    double xscale = ((double) x) / this->m;
+    double yscale = ((double) y) / this->n;
+    
+    p.x = p.x + h.x *(xscale);
+    p.y = p.y + h.y *(xscale);
+    p.z = p.z + h.z *(xscale);
+
+    p.x = p.x + v.x *(yscale);
+    p.y = p.y + v.y *(yscale);
+    p.z = p.z + v.z *(yscale);
+
+    //Now that we have p, we need to get the Ray that goes from
+    //the viewpoint to the point
+
+    Ray ray;
+
+    ray.direction = p-e;
+    ray.origin = p;
+
+    //Now that we have the ray, let's see if it intersects anything
+
+    vector<Primitive*>::iterator theIterator, index;
+    double t=-1, temp;
+    
+    for( theIterator = primitives.begin(); theIterator != primitives.end(); 
+         theIterator++ ) 
+    {
+        temp = (*theIterator)->intersectsWith(ray);
+
+        if (temp >= 0 && (temp < t || t < 0)) {
+            index = theIterator;
+            t = temp;
+        }
+    }
+
+    /* Add intensity code */
+    if (t >= 0) {
+
+        Point p = (ray.direction*t) + ray.origin;
+        Ray L;
+        L.direction = light.center-p;
+        L.origin = p;
+        double shadowT;
+
+
+        //Check if it is in shadow
+        for (theIterator = primitives.begin(); theIterator != primitives.end();
+            theIterator++)
+        {
+            if (theIterator == index) {
+                continue;
+            }
+            shadowT = (*theIterator)->intersectsWith(L);
+            if (shadowT > 0 && shadowT  < 1) {
+                //object intersected, don't bother continuing
+                pixel.r = (*index)->attrib.k_ar * ambience;
+                pixel.g = (*index)->attrib.k_ag * ambience;
+                pixel.b = (*index)->attrib.k_ab * ambience;
+                return;
+            }
+        }
+        //nothing found, check for self intersection
+        if ((*index)->intersectsWithSelf(p, this->light, this->e)) {
+            pixel.r = (*index)->attrib.k_ar * ambience;
+            pixel.g = (*index)->attrib.k_ag * ambience;
+            pixel.b = (*index)->attrib.k_ab * ambience;
+        } else {
+            double temp;
+            Vector V, N, R;
+
+            /*pixel.r = (*index)->attrib.k_ar * ambience 
+                + (*index)->attrib.k_dr * this->light.intensity;
+            pixel.g = (*index)->attrib.k_ag * ambience 
+                + (*index)->attrib.k_dg * this->light.intensity;
+            pixel.b = (*index)->attrib.k_ab * ambience 
+               + (*index)->attrib.k_db * this->light.intensity;
+            */
+
+            //Calculate the R, V, and L vectors
+            //We have L, but it needs to be converted to a unit vector
+            //L.direction = L.direction / length(L.direction);
+            temp = length(L.direction);
+            L.direction.x /= temp;
+            L.direction.y /= temp;
+            L.direction.z /= temp;
+
+            V = e-p;
+            temp = length(V);
+            V.x /= temp;
+            V.y /= temp;
+            V.z /= temp;
+            /*V.x /= -1*temp;
+            V.y /= -1*temp;
+            V.z /= -1*temp;*/
+
+            
+            N = (*index)->normal(p,light);
+            temp = length(N);
+            N.x /= temp;
+            N.y /= temp;
+            N.z /= temp;
+
+            //diffuse
+            pixel.r = (*index)->attrib.k_dr * this->light.intensity 
+                * dot(N,L.direction);
+            pixel.g = (*index)->attrib.k_dg * this->light.intensity 
+                * dot(N,L.direction);
+            pixel.b = (*index)->attrib.k_db * this->light.intensity 
+                * dot(N,L.direction);
+            
+            //specular
+            R.x = (-1*L.direction.x)+(2.*((dot(N,L.direction)) * N.x));
+            R.y = (-1*L.direction.y)+(2.*((dot(N,L.direction)) * N.y));
+            R.z = (-1*L.direction.z)+(2.*((dot(N,L.direction)) * N.z));
+
+            pixel.r += 
+                (*index)->attrib.k_s * pow(max((double)0,dot(R,V)),(*index)->attrib.n_spec) * this->light.intensity;
+                
+            pixel.g += 
+                (*index)->attrib.k_s * pow(max((double)0,dot(R,V)),(*index)->attrib.n_spec) * this->light.intensity;
+                
+            pixel.b += 
+                (*index)->attrib.k_s * pow(max((double)0,dot(R,V)),(*index)->attrib.n_spec) * this->light.intensity;
+             
+            //calculate distance from light for attenuation
+            /*double r = length(this->light.center - p);
+
+            pixel.r *= (1./(pow(r,((double)2)) + r));
+            pixel.g *= (1./(pow(r,((double)2)) + r));
+            pixel.b *= (1./(pow(r,((double)2)) + r));*/
+
+            //add ambient
+            pixel.r += (*index)->attrib.k_ar * ambience ;
+            pixel.g += (*index)->attrib.k_ag * ambience ;
+            pixel.b += (*index)->attrib.k_ab * ambience ;
+            return;
+        }
+    } else {
+        
+        pixel.r = 0;
+        pixel.g = 0;
+        pixel.b = 0;
+    }
+
+}
+
+
+
+