diff --git a/chain.png b/chain.png
deleted file mode 100644
index c145cce..0000000
Binary files a/chain.png and /dev/null differ
diff --git a/chain.pov b/chain.pov
index e251fcb..4277f93 100644
--- a/chain.pov
+++ b/chain.pov
@@ -2,7 +2,7 @@
   #include "colors.inc"
 
   global_settings {
-    assumed_gamma 1
+    assumed_gamma 1.8
   }
 
   camera {
diff --git a/csgdemo.png b/csgdemo.png
deleted file mode 100644
index 22ccd77..0000000
Binary files a/csgdemo.png and /dev/null differ
diff --git a/csgdemo.pov b/csgdemo.pov
index 7993510..e898021 100644
--- a/csgdemo.pov
+++ b/csgdemo.pov
@@ -2,7 +2,7 @@
   #include "colors.inc"
 
   global_settings {
-    assumed_gamma 1
+    assumed_gamma 1.8
   }
 
   camera {
diff --git a/demo.png b/demo.png
deleted file mode 100644
index 3d1f0b5..0000000
Binary files a/demo.png and /dev/null differ
diff --git a/demo.pov b/demo.pov
index 8329b6e..99b04b4 100644
--- a/demo.pov
+++ b/demo.pov
@@ -3,9 +3,14 @@
 #include "colors.inc"
 #include "stones.inc"
 
+  global_settings {
+    assumed_gamma 1.8
+  }
+
 background { rgb < 0.5, 0.5, 0.5 > }
 
 camera {
+  right 1.78*x
   location <0, 2, -4>
   look_at  <0, 1,  2>
 }
diff --git a/first.png b/first.png
deleted file mode 100644
index 511c5dd..0000000
Binary files a/first.png and /dev/null differ
diff --git a/first.pov b/first.pov
index 8f0c915..26522c4 100644
--- a/first.pov
+++ b/first.pov
@@ -14,7 +14,7 @@
 
 #version  3.7;
 global_settings { 
-  assumed_gamma 1.0
+  assumed_gamma 1.8
 }
 
 #include "shapes.inc"
diff --git a/focal_demo.pov b/focal_demo.pov
new file mode 100644
index 0000000..9ef190c
--- /dev/null
+++ b/focal_demo.pov
@@ -0,0 +1,12 @@
+  #version 3.7;
+
+  global_settings {
+    assumed_gamma 1.8
+  }
+
+  camera {
+    right x*1280/720
+    location <-25, -75.1, -60>
+    look_at 0.1
+    angle 30
+  }
diff --git a/images/chain.png b/images/chain.png
new file mode 100644
index 0000000..d0e0599
Binary files /dev/null and b/images/chain.png differ
diff --git a/images/csgdemo.png b/images/csgdemo.png
new file mode 100644
index 0000000..404b18a
Binary files /dev/null and b/images/csgdemo.png differ
diff --git a/images/demo.png b/images/demo.png
new file mode 100644
index 0000000..e4f02a5
Binary files /dev/null and b/images/demo.png differ
diff --git a/images/first.png b/images/first.png
new file mode 100644
index 0000000..91196d3
Binary files /dev/null and b/images/first.png differ
diff --git a/images/lite_demo.png b/images/lite_demo.png
new file mode 100644
index 0000000..5885a65
Binary files /dev/null and b/images/lite_demo.png differ
diff --git a/images/noodle.png b/images/noodle.png
new file mode 100644
index 0000000..5755679
Binary files /dev/null and b/images/noodle.png differ
diff --git a/images/texture_demo.png b/images/texture_demo.png
new file mode 100644
index 0000000..6a350b1
Binary files /dev/null and b/images/texture_demo.png differ
diff --git a/images/tordemo.png b/images/tordemo.png
new file mode 100644
index 0000000..8f0df6a
Binary files /dev/null and b/images/tordemo.png differ
diff --git a/lite_demo.pov b/lite_demo.pov
new file mode 100644
index 0000000..c95ef8f
--- /dev/null
+++ b/lite_demo.pov
@@ -0,0 +1,167 @@
+  #version 3.7;
+  #include "colors.inc"
+  #include "textures.inc"
+
+  global_settings {
+    assumed_gamma 1.8
+    // ambient_light White
+  }
+
+  camera {
+    // right x*1280/720
+    right 1.78*x
+    location <-4, 3, -12>
+    look_at 0
+    angle 48
+  }
+
+
+  #declare spots = union {
+    light_source { <0, 10, -3>
+      color White
+      spotlight
+      radius 15
+      falloff 18
+      tightness 10
+      point_at 0
+    }
+
+    light_source { <10, 10, -1>
+      color Red
+      spotlight
+      radius 12
+      falloff 14
+      tightness 10
+      point_at <2, 0, 0>
+    }
+
+    light_source { <-12, 10, -1>
+      color Blue
+      spotlight
+      radius 12
+      falloff 14
+      tightness 10
+      point_at <-2, 0, 0>
+    }
+  }
+
+
+  #declare spot_area = union {
+    light_source { <2, 10, -3>
+      color White
+      spotlight
+      radius 15
+      falloff 18
+      tightness 10
+      area_light <1, 0, 0>, <0, 0, 1>, 2, 2
+      adaptive 1
+      jitter
+      point_at 0
+    }
+    light_source { <10,10,-1>
+      color Red
+      spotlight
+      radius 12
+      falloff 14
+      tightness 10
+      area_light <1,0,0>, <0,0,1>, 2,2
+      adaptive 1
+      jitter
+      point_at <2,0,0>
+    }
+    light_source { <-12,10,-1>
+      color Blue
+      spotlight
+      radius 12
+      falloff 14
+      tightness 10
+      area_light <1,0,0>, <0,0,1>, 2,2
+      adaptive 1
+      jitter
+      point_at <-2,0,0>
+    }
+  }
+
+//  spots
+//  spot_area
+
+  #declare light_bulb = union {
+    merge {
+      sphere { <0,0,0>,1 }
+      cylinder {
+        <0,0,1>, <0,0,0>, 1
+        scale <0.35, 0.35, 1.0>
+        translate  0.5*z
+      }
+      texture {
+        pigment {color rgb <1, 1, 1>}
+        finish {ambient .8 diffuse .6}
+      }
+    }
+    cylinder {
+      <0,0,1>, <0,0,0>, 1
+      scale <0.4, 0.4, 0.5>
+      texture { Brass_Texture }
+      translate  1.5*z
+    }
+    rotate -90*x
+    scale .5
+  }
+
+  light_source { <0, 2.2, 0>
+    color White
+    area_light <1, 0, 0>, <0, 1, 0>, 2, 2
+    adaptive 1
+    jitter
+    looks_like { light_bulb }
+  }
+
+  light_source { <0, 20, 0>
+    color Gray75
+    fade_distance 10
+    fade_power 2
+    shadowless
+  }
+
+////////////////
+// objects
+  plane {
+    y, -1
+    texture {
+      pigment {
+        checker
+        color rgb<0.5, 0, 0>
+        color rgb<0, 0.5, 0.5>
+      }
+      finish {
+        diffuse 0.4
+        ambient 0.2
+        phong 1
+        phong_size 100
+        reflection 0.25
+      }
+    }
+  }
+  torus {
+    1.5, 0.5
+    texture { Brown_Agate }
+    rotate <90, 160, 0>
+    translate <-1, 1, 3>
+  }
+  box {
+    <-1, -1, -1>, <1, 1, 1>
+    texture { DMFLightOak }
+    translate <2, 0, 2.3>
+  }
+  cone {
+    <0,1,0>, 0, <0,0,0>, 1
+    texture { PinkAlabaster }
+    scale <1, 3, 1>
+    translate <-2, -1, -1>
+  }
+  sphere {
+    <0,0,0>,1
+    texture { Sapphire_Agate }
+    translate <1.5, 0, -2>
+  }
+
diff --git a/noodle.pov b/noodle.pov
new file mode 100644
index 0000000..9cbf255
--- /dev/null
+++ b/noodle.pov
@@ -0,0 +1,49 @@
+  #version 3.7;
+  #include "colors.inc"
+
+  global_settings {
+    assumed_gamma 1.8
+  }
+
+  camera {
+    right x*1280/720
+    location <0, 0, -15>
+    look_at 0
+    angle 0
+  }
+
+  background { color Gray30 }
+  light_source { <300, 300, -1000> White }
+
+
+  // #declare crosshair = merge {
+  // }
+  // object { crosshair }
+
+
+  #declare half_tor = difference {
+    torus {
+      4, 1
+      rotate x*-90
+      translate < 4, 0, 0 >
+    }
+    box { <-10, -10, -2>, <10, 0, 2> }
+    pigment { Green }
+  }
+  #declare tor_trans = 8;  // twice the major radius
+
+  #declare flip_it = 180*x;
+
+  #declare noodle = union {
+    object { half_tor }
+    object { half_tor
+      rotate flip_it
+      translate x*tor_trans
+    }
+  }
+
+  object { 
+      noodle 
+      scale .6
+    }
+  
diff --git a/povray.ini b/povray.ini
index b4447cb..d4ffaf6 100644
--- a/povray.ini
+++ b/povray.ini
@@ -57,6 +57,7 @@ Verbose=On
 Library_Path="/usr/local/Cellar/povray/3.7.0.0/share/povray-3.7"
 Library_Path="/usr/local/Cellar/povray/3.7.0.0/share/povray-3.7/ini"
 Library_Path="/usr/local/Cellar/povray/3.7.0.0/share/povray-3.7/include"
+Library_Path="./inc"
 
 ;; File output type control.
 ;;     T    Uncompressed Targa-24
@@ -67,7 +68,12 @@ Library_Path="/usr/local/Cellar/povray/3.7.0.0/share/povray-3.7/include"
 
 Output_to_File=true
 Output_File_Type=N16            ;; (+/-Ftype)
+Output_File_Name=./images/
 
-+A
+Dither=true
+Dither_Method=B4
+
+Antialias=true
+Sampling_Method=2
 
 
diff --git a/texture_demo.pov b/texture_demo.pov
new file mode 100644
index 0000000..f9b186a
--- /dev/null
+++ b/texture_demo.pov
@@ -0,0 +1,59 @@
+  #version 3.7;
+  #include "colors.inc"
+
+  global_settings {
+    assumed_gamma 1.8
+  }
+
+  camera {
+    right 1.78*x
+    location <0, 0, -6>
+    look_at <0, 1, 0>
+    angle 0
+  }
+
+
+  #declare area_lamp = light_source { <0, 15, 0>
+    color White
+    area_light <6,0,0>, <0,0,6>, 3, 3
+    adaptive 1
+    jitter
+  }
+  area_lamp
+
+
+//  sphere {
+//    <-3, 1, 2>, 2
+//    texture {
+//      pigment { 
+//        wood
+//        color_map {
+//          [0.1 color DarkTan]
+//          [0.9 color DarkBrown]
+//          [1.0 color VeryDarkBrown]        
+//        }
+//        turbulence 0.05
+//        scale <0.2, 0.3, 1>
+//      }
+//      normal { bumps 0.1 scale 0.2 }
+//      finish { phong 0.65 }
+//    }
+//  }
+
+
+  sphere {
+    <0, 1, 2>, 2
+    texture {
+      pigment {
+        wood
+        color_map {
+          [0.0 color Red]
+          [0.5 color Green]
+          [1.0 color Blue]
+        }
+        turbulence 0.08
+        scale 3
+      }
+      finish { phong 1 }
+    }
+  }  
diff --git a/tordemo.png b/tordemo.png
deleted file mode 100644
index fd1a66a..0000000
Binary files a/tordemo.png and /dev/null differ
diff --git a/tordemo.pov b/tordemo.pov
index 686fb9e..baec0ce 100644
--- a/tordemo.pov
+++ b/tordemo.pov
@@ -1,5 +1,8 @@
 #include "colors.inc"
 
+  global_settings {
+    assumed_gamma 1.8
+  }
   camera {
     location <0, .1, -75>
     look_at 0.1