diff --git a/assignment-1c/examples/Hw1bSample1.txt b/assignment-1c/examples/Hw1bSample1.txt
deleted file mode 100755
index 75ea085..000000000
--- a/assignment-1c/examples/Hw1bSample1.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-imsize 512 512
-eye 0 0 0
-viewdir 0 0.1 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.1 0.1 0.1
-
-light -1 -1 -1 0 0.9 0.5 0.05
-
-mtlcolor 0 1 0 1 1 1 0.6 0.2 0.2 10
-sphere 0 1.5 -4 1
-
-mtlcolor 0 1 0 1 1 1 0.1 0.8 0.2 10
-sphere -1.275 -0.75 -4 1
-
-mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 10
-sphere 1.275 -0.75 -4 1
-
diff --git a/assignment-1c/examples/attenuation-demo.txt b/assignment-1c/examples/attenuation-demo.txt
deleted file mode 100644
index f90d239..000000000
--- a/assignment-1c/examples/attenuation-demo.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-imsize 600 200
-eye 0 0 15
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-attlight -15 10 5 1 1 1 1 0 0.25 0.03
-
-mtlcolor 0.6 1 0.8 1 1 1 0.4 1 0.5 15
-sphere -10 0 0 2
-sphere -5 0 0 2
-sphere 0 0 0 2
-sphere 5 0 0 2
-sphere 10 0 0 2
diff --git a/assignment-1c/examples/cylinder.txt b/assignment-1c/examples/cylinder.txt
deleted file mode 100644
index d4392e0..000000000
--- a/assignment-1c/examples/cylinder.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-imsize 640 480
-eye 0 0 15
-viewdir 0 0 -1
-hfov 60
-updir 0 1 0
-bkgcolor 0.1 0.1 0.1
-
-light -10 10 -3 0 0 0.4 0.4
-light 10 10 -3 1 0.4 0 0.4
-
-mtlcolor 0.5 1 0.5 0.2 0.4 0.8 0.2 0.4 0 10
-cylinder -2 4 -3 0 0 5 1 4
diff --git a/assignment-1c/examples/depth-cueing-demo.txt b/assignment-1c/examples/depth-cueing-demo.txt
deleted file mode 100644
index 2b368c0..000000000
--- a/assignment-1c/examples/depth-cueing-demo.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-imsize 640 480
-eye -2.5 2 -5
-viewdir -0.2 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-depthcueing 0.4 0.4 0.4 1 0.1 60 0
-light 0 5 -7.5 1 1 1 1
-
-mtlcolor 1 0.8 0.7 1 1 1 0.6 0.6 0 10
-sphere -5 2 -10 2
-sphere -3 2 -20 2
-sphere 1.5 2 -30 2
-sphere 13 2 -60 2
diff --git a/assignment-1c/examples/ka-demo.txt b/assignment-1c/examples/ka-demo.txt
deleted file mode 100644
index 395d198..000000000
--- a/assignment-1c/examples/ka-demo.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-imsize 600 200
-eye 0 0 15
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-light 0 5 5 1 0.7 0.7 0.8
-
-mtlcolor 0.6 1 0.4 1 1 1 0 0.4 0 1 
-sphere -10 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.4 0 1 
-sphere -5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.4 0.4 0 1 
-sphere 0 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.6 0.4 0 1 
-sphere 5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.8 0.4 0 1 
-sphere 10 0 0 2
diff --git a/assignment-1c/examples/kd-demo.txt b/assignment-1c/examples/kd-demo.txt
deleted file mode 100644
index 10097f6..000000000
--- a/assignment-1c/examples/kd-demo.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-imsize 600 200
-eye 0 0 15
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-light 0 5 5 1 0.7 0.7 0.8
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0 0 1
-sphere -10 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0 1
-sphere -5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.4 0 1
-sphere 0 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.6 0 1
-sphere 5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.8 0 1
-sphere 10 0 0 2
diff --git a/assignment-1c/examples/ks-demo.txt b/assignment-1c/examples/ks-demo.txt
deleted file mode 100644
index df401ff..000000000
--- a/assignment-1c/examples/ks-demo.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-imsize 600 200
-eye 0 0 15
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-light 0 5 5 1 0.7 0.7 0.8
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0 15
-sphere -10 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.2 15
-sphere -5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 15
-sphere 0 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.6 15
-sphere 5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.8 15
-sphere 10 0 0 2
diff --git a/assignment-1c/examples/multiple-lights-demo.txt b/assignment-1c/examples/multiple-lights-demo.txt
deleted file mode 100644
index cf2e84c..000000000
--- a/assignment-1c/examples/multiple-lights-demo.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-imsize 640 480
-eye 0 0 -2
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-light -5 5 -7.5 1 1 1 1
-light 5 5 -7.5 1 1 1 1
-
-mtlcolor 0.4 0.6 1 1 1 1 0.2 0.6 0 10
-sphere 0 -2 -10 2
-
-mtlcolor 0.8 0.4 0.4 1 1 1 0.2 0.6 0 10
-sphere -2.5 2.5 -10 1
-sphere 2.5 2.5 -10 1
diff --git a/assignment-1c/examples/n-demo.txt b/assignment-1c/examples/n-demo.txt
deleted file mode 100644
index 38acb11..000000000
--- a/assignment-1c/examples/n-demo.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-imsize 600 200
-eye 0 0 15
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-light 0 5 5 1 0.7 0.7 0.8
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 2
-sphere -10 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 6
-sphere -5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 10
-sphere 0 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 50
-sphere 5 0 0 2
-
-mtlcolor 0.6 1 0.4 1 1 1 0.2 0.2 0.4 100
-sphere 10 0 0 2
diff --git a/assignment-1c/examples/objects.txt b/assignment-1c/examples/objects.txt
deleted file mode 100644
index 10f9e3a..000000000
--- a/assignment-1c/examples/objects.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-imsize 1920 1080
-eye 0 0 15
-viewdir 0 0 -1
-hfov 60
-updir 0 1 0
-bkgcolor 0.4 0.4 0.4
-
-depthcueing 0.4 0.4 0.4 1 0.1 60 0
-
-light -10 10 -3 0 0.8 0.8 0.8
-light -10 10 -3 1 0.8 0.8 0.8
-
-mtlcolor 0 0.5 0.5 1 1 1 0.2 0.7 0.2 10
-sphere -1 -2 -5 2
-sphere 10 -10 -40 1
-
-mtlcolor 0.5 0.5 1 0.4 0.4 0.4 0.2 0.7 0.4 10
-sphere 1 2 -3 3
-sphere -6 3 -4 1
-
-mtlcolor 1.0 0 0.5 0.6 0.4 0.2 0.2 0.6 0.8 10
-sphere 20 20 -50 6
-
-mtlcolor 0.5 0 0.5 0.6 0.4 0.2 0.2 0.5 0 10
-sphere -6 -4 -8 7
-
-mtlcolor 0.8 0 0.3 0.6 0.4 0.2 0.2 0.4 0.2 10
-cylinder -2 2 -3 0 0 5 1 4
-
-mtlcolor 0.8 0.8 0.3 0.6 0.4 0.2 0.2 0.8 0.2 10
-sphere -40 35 -80 7
-sphere -25 20 -60 5
-sphere -12.5 15 -40 3
-sphere -7 14 -30 2
-
-mtlcolor 0.5 1 0.5 0.2 0.4 0.8 0.2 0.4 0 10
-cylinder 5 1 -2 1 -2 1 1 2
diff --git a/assignment-1c/examples/sample-1.txt b/assignment-1c/examples/sample-1.txt
deleted file mode 100644
index 5ed539a..000000000
--- a/assignment-1c/examples/sample-1.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-imsize 256 256
-eye 0 0 0
-viewdir 0 0 -1
-hfov 90
-updir 0 1 0
-bkgcolor 0.1 0.1 0.1
-
-light -2 3 -3 0 1 0.5 0.6
-light 2 3 -3 1 0.5 0.5 1
-
-mtlcolor 0 1 0 1 1 1 0.2 0.4 0 10
-sphere 0 0 -5 2
diff --git a/assignment-1c/examples/soft-shadow-demo.txt b/assignment-1c/examples/soft-shadow-demo.txt
deleted file mode 100644
index 279e3f1..000000000
--- a/assignment-1c/examples/soft-shadow-demo.txt
+++ /dev/null
@@ -1,45 +0,0 @@
-imsize 640 480
-eye 0 0 15
-viewdir 0 0 -1
-hfov 60
-updir 0 1 0
-bkgcolor 0.5 0.5 0.5
-
-depthcueing 0.5 0.5 0.5 1 0.4 60 0
-
-light 10 10 -10 1 1 1 1
-
-mtlcolor 0.5 1 0.5 1 1 1 0.2 1 0.1 5
-sphere 4.5 4.5 -20 4.5
-sphere -4.5 -4.5 -20 4.5
-
-mtlcolor 1 0.5 0.5 1 1 1 0.2 0.8 0 5
-sphere -10 0 -30 4
-sphere -20 0 -30 4
-sphere -30 0 -30 4
-sphere -40 0 -30 4
-sphere 0 0 -30 4
-sphere 10 0 -30 4
-sphere 20 0 -30 4
-sphere 30 0 -30 4
-sphere 40 0 -30 4
-
-sphere -10 -10 -30 4
-sphere -20 -10 -30 4
-sphere -30 -10 -30 4
-sphere -40 -10 -30 4
-sphere 0 -10 -30 4
-sphere 10 -10 -30 4
-sphere 20 -10 -30 4
-sphere 30 -10 -30 4
-sphere 40 -10 -30 4
-
-sphere -10 10 -30 4
-sphere -20 10 -30 4
-sphere -30 10 -30 4
-sphere -40 10 -30 4
-sphere 0 10 -30 4
-sphere 10 10 -30 4
-sphere 20 10 -30 4
-sphere 30 10 -30 4
-sphere 40 10 -30 4