Category : Printer + Display Graphics
Archive   : PLYDAT.ZIP
Filename : NOISE3.PI

# Generic Polyray input File
# Polyray input file: Alexander Enzmann
# Time on 20Mhz 286/ 10Mhz 287: xx setup, xxx tracing

# Set up the camera
viewpoint {
from <0, 0, -8>
at <0,0,0>
up <0,1,0>
angle 45
resolution 160, 160
}

background <0, 0, 0>
light <-10, 3, -20>

define turb_value (fmod(frame, 8) +1) * 0.5
define octv_value (frame / 8) + 1

# Definitions of noise texture components
define position_plain 0
define position_objectx 1
define position_worldx 2
define position_cylindrical 3
define position_fmodx 4
define position_fmodxy 5
define position_fmodxyz 6

define lookup_plain 0
define lookup_sawtooth 1
define lookup_cos 2
define lookup_sin 3


# Simple color map texture
define noise_texture0
texture {
noise surface {
color white
position_fn position_plain
lookup_fn lookup_plain
octaves 6
turbulence 1
ambient 0.2
diffuse 0.8
specular 0.5
microfacet Reitz 10
color_map(
[0, 0.2, red, orange]
[0.1, 0.3, orange, blue]
[0.3, 0.5, blue, skyblue]
[0.5, 0.7, skyblue, orange]
[0.7, 0.9, orange, magenta]
[0.9, 1.0, magenta, red],
<1, 1, 1>)
}
scale <0.3, 0.3, 0.3>
}

define white_marble_texture
texture {
noise surface {
color white
position_fn position_objectx
lookup_fn lookup_sawtooth
octaves octv_value
turbulence turb_value
ambient 0.2
diffuse 0.8
specular 0.3
microfacet Reitz 5
color_map(
[0.0, 0.8, <1, 1, 1>, <0.6, 0.6, 0.6>]
[0.8, 1.0, <0.6, 0.6, 0.6>, <0.1, 0.1, 0.1>])
}
}

object { sphere <0, 0, 0>, 2 noise_texture0 }