more tuts

bicubic_demo.pov

@@ -0,0 +1,65 @@
+  #version 3.7;
+  global_settings { assumed_gamma 2.2 }
+  #include "colors.inc"
+
+  background {rgb <1,0.9,0.9>}
+  camera {right 1.78*x location <1.6,5,-6> look_at <1.5,0,1.5> angle 40}
+  light_source {<500,500,-500> rgb 1 }
+
+  #declare B11=<0,0,3>; #declare B12=<1,0,3>; //
+  #declare B13=<2,0,3>; #declare B14=<3,0,3>; // row 1
+
+  #declare B21=<0,0,2>; #declare B22=<1,0,2>; //
+  #declare B23=<2,0,2>; #declare B24=<3,0,2>; // row 2
+
+  #declare B31=<0,0,1>; #declare B32=<1,0,1>; //
+  #declare B33=<2,0,1>; #declare B34=<3,0,1>; // row 3
+
+  #declare B41=<0,0,0>; #declare B42=<1,0,0>; //
+  #declare B43=<2,0,0>; #declare B44=<3,0,0>; // row 4
+
+  bicubic_patch {
+     type 1 flatness 0.001
+     u_steps 4 v_steps 4
+     uv_vectors
+     <0,0> <1,0> <1,1> <0,1>
+     B11, B12, B13, B14
+     B21, B22, B23, B24
+     B31, B32, B33, B34
+     B41, B42, B43, B44
+     uv_mapping
+     texture {
+        pigment {
+           checker 
+           color rgbf <1,1,1,0.5> 
+           color rgbf <0,0,1,0.7> 
+           scale 1/3
+        }
+        finish {phong 0.6 phong_size 20}
+     }
+     no_shadow
+  }
+
+
+
+  #declare Points=array[16]{
+   B11, B12, B13, B14
+   B21, B22, B23, B24
+   B31, B32, B33, B34
+   B41, B42, B43, B44
+  }
+  #declare I=0;
+  #while (I<16)
+     sphere {
+        Points[I],0.1 
+        no_shadow 
+        pigment{
+           #if (I=0|I=3|I=12|I=15)
+              color rgb <1,0,0>
+           #else
+              color rgb <0,1,1>
+           #end
+        }
+     }
+     #declare I=I+1;
+  #end

focal_demo.pov

@@ -1,12 +1,61 @@
   #version 3.7;
 
+  #include "colors.inc"
+  #include "shapes.inc"
+  #include "textures.inc"
+
   global_settings {
-    assumed_gamma 1.8
+    assumed_gamma 2.2
   }
 
   camera {
-    right x*1280/720
-    location <-25, -75.1, -60>
-    look_at 0.1
-    angle 30
+    right 1.78*x
+    location <0.0, 0.2, -10.0>
+
+    look_at  <0.0, 1.0,  0.0>
+  //  focal_point <-6, 1, 30>    // blue cylinder in focus
+    focal_point < 0, 1,  0>    // green box in focus
+  //  focal_point < 1, 1, -6>    // pink sphere in focus
+
+  //  aperture 0.4     // a nice compromise
+  //  aperture 0.05    // almost everything is in focus
+    aperture 1.5     // much blurring
+
+  //  blur_samples 4       // fewer samples, faster to render
+    blur_samples 20      // more samples, higher quality image
   }
+
+  
+  sphere {
+    <1, 0, -6>, 0.5
+    finish {
+      ambient 0.1
+      diffuse 0.6
+    }
+    pigment { NeonPink }
+  }
+  box {
+    <-1, -1, -1>, < 1,  1,  1>
+    rotate <0, -20, 0>
+    finish {
+      ambient 0.1
+      diffuse 0.6
+    }
+    pigment { Green }
+  }
+  cylinder {
+    <-6, 6, 30>, <-6, -1, 30>, 3
+    finish {
+      ambient 0.1
+      diffuse 0.6
+    }
+    pigment {NeonBlue}
+  }
+  plane {
+    y, -1.0
+    pigment {
+      checker color Gray65 color Gray30
+    }
+  }
+  light_source { <5, 30, -30> color White }
+  light_source { <-5, 30, -30> color White }  

lathe_demo.pov

@@ -0,0 +1,31 @@
+  #version 3.7;
+
+  #include "colors.inc"
+
+  global_settings {
+    assumed_gamma 2.2
+  }
+
+  camera {
+    right 1.78*x
+    angle 10
+    location <1, 3, -50>
+    look_at <0, 2.2, 0>
+  }
+
+  background{White}
+
+  light_source {
+    <20, 20, -20> color White
+  }
+
+  lathe {
+    linear_spline
+    6,
+    <0,0>, <1,1>, <3,2>, <2,3>, <2,4>, <0,4>
+    pigment { Blue }
+    finish {
+      ambient .3
+      phong .75
+    }
+  }

povray.ini

@@ -18,11 +18,13 @@
 ;  general documentation for full instructions on how to use INI options.
 ;
 ; Width of image in pixels.  Accepts integer values.
+;Width = 800
 Width = 1280
-;
+ 
 ; Height of image in pixels.  Accepts integer values.
+;Height = 600
 Height = 720
-;
+ 
 ; Sets minimum number of objects before auto bounding kicks in.
 Bounding_Threshold = 3
 ;

prisim_demo.pov

@@ -0,0 +1,75 @@
+  #version 3.7;
+  global_settings { assumed_gamma 2.2 }
+  #include "colors.inc"
+
+  background{White}
+  camera {
+    right 1.78*x
+    angle 20
+    location <2, 10, -80>
+    look_at <0, 1, 0>
+  }
+
+  light_source { <20, 20, -20> color White }
+
+//  prism {
+//    linear_sweep
+//    linear_spline
+//    0, // sweep the following shape from here ...
+//    1, // ... up through here
+//    7, // the number of points making up the shape ...
+//    <3,5>, <-3,5>, <-5,0>, <-3,-5>, <3, -5>, <5,0>, <3,5>
+//    pigment { Green }
+//  }
+
+//  prism {
+//    cubic_spline
+//    0, // sweep the following shape from here ...
+//    1, // ... up through here
+//    6, // the number of points making up the shape ...
+//    < 3, -5>, // point#1 (control point... not on curve)
+//    < 3,  5>, // point#2  ... THIS POINT ...
+//    <-5,  0>, // point#3
+//    < 3, -5>, // point#4
+//    < 3,  5>, // point#5 ... MUST MATCH THIS POINT
+//    <-5,  0>  // point#6 (control point... not on curve)
+//    pigment { Green }
+//  }
+
+//  prism {
+//    linear_sweep
+//    cubic_spline
+//    0,  // sweep the following shape from here ...
+//    1,  // ... up through here
+//    18, // the number of points making up the shape ...
+//    <3,-5>, <3,5>, <-5,0>, <3, -5>, <3,5>, <-5,0>,//sub-shape #1
+//    <2,-4>, <2,4>, <-4,0>, <2,-4>, <2,4>, <-4,0>, //sub-shape #2
+//    <1,-3>, <1,3>, <-3,0>, <1, -3>, <1,3>, <-3,0> //sub-shape #3
+//    pigment { Green }
+//  }
+
+//  prism {
+//    conic_sweep
+//    linear_spline
+//    0, // height 1
+//    1, // height 2
+//    5, // the number of points making up the shape...
+//    <4,4>,<-4,4>,<-4,-4>,<4,-4>,<4,4>
+//    rotate <180, 0, 0>
+//    translate <0, 1, 0>
+//    scale <1, 4, 1>
+//    pigment { gradient y scale .2 }
+//  }
+
+  sphere_sweep {
+    cubic_spline
+    6,
+    <-4, -5, 0>, 1
+    <-5, -5, 0>, 1
+    <-5,  5, 0>, 0.5
+    < 5, -5, 0>, 0.5
+    < 5,  5, 0>, 1
+    < 4,  5, 0>, 1
+    tolerance 0.1
+    pigment { Green }
+  }

sor_demo.pov

@@ -0,0 +1,31 @@
+  #version 3.7;
+  #include "colors.inc"
+  #include "golds.inc"
+  
+  global_settings { assumed_gamma 2.2 }
+
+  camera {
+    right 1.78*x
+    location <10, 15, -20>
+    look_at <0, 5, 0>
+    angle 45
+  }
+  background { color rgb<0.2, 0.4, 0.8>  }
+  light_source { <100, 100, -100> color rgb 1 }
+  plane {
+    y, 0
+    pigment { checker color Red, color Green scale 10 }
+  }
+  sor {
+    8,
+    <0.0,  -0.5>,
+    <3.0,   0.0>,
+    <1.0,   0.2>,
+    <0.5,   0.4>,
+    <0.5,   4.0>,
+    <1.0,   5.0>,
+    <3.0,  10.0>,
+    <4.0,  11.0>
+    open
+    texture { T_Gold_1B }
+  }

spline_demo.pov

@@ -0,0 +1,53 @@
+  #version 3.7;
+  #include "colors.inc"
+
+  global_settings { assumed_gamma 2.2 }
+
+  camera {
+    orthographic
+    right 1.78*x
+    up <0, 7, 0>
+    right <7, 0, 0>
+    location <3.5, 4, -100>
+    look_at <3.5, 4, 0>
+  }
+  /* set the control points to be used */
+  #declare Red_Point    = <2.00, 1.00>;
+  #declare Orange_Point = <1.00, 1.50>;
+  #declare Green_Point  = <3.00, 3.50>;
+  #declare Blue_Point   = <2.00, 4.00>;
+  #declare Green_Point2 = <1.00, 4.50>;
+  #declare Orange_Point2= <1.00, 6.50>;
+  #declare Red_Point2   = <2.00, 7.00>;
+  /* make the control points visible */
+
+  cylinder { Red_Point, Red_Point - <0,0,20>, .1
+    pigment { Red } finish { ambient 1 }
+  }
+  cylinder { Orange_Point, Orange_Point - <0,0,20>, .1
+    pigment { Orange } finish { ambient 1 }
+  }
+  cylinder { Green_Point, Green_Point - <0,0,20>, .1
+    pigment { Green } finish { ambient 1 }
+  }
+  cylinder { Blue_Point, Blue_Point- <0,0,20>, .1
+    pigment { Blue } finish { ambient 1 }
+  }
+  cylinder { Green_Point2, Green_Point2 - <0,0,20>, .1
+    pigment { Green } finish { ambient 1 }
+  }
+  cylinder { Orange_Point2, Orange_Point2 - <0,0,20>, .1
+    pigment { Orange } finish { ambient 1 }
+  }
+  cylinder { Red_Point2, Red_Point2 - <0,0,20>, .1
+    pigment { Red } finish { ambient 1 }
+  }  
+  /* something to make the curve show up */
+  lathe {
+    bezier_spline
+    8,
+    Red_Point, Orange_Point, Green_Point, Blue_Point
+    Blue_Point, Green_Point2, Orange_Point2, Red_Point2
+    pigment { White }
+    finish { ambient 1 }
+  }