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Well, the file is not too long, I'll just post it here:
#version 3.6;
#include "colors.inc"
#declare IsoOk = on;
#declare MediaOk = on;
#declare RadiosityOk = on;
#declare Photons = on;
global_settings {
assumed_gamma 1.0
#if (RadiosityOk = on)
radiosity {
count 50
error_bound 1
recursion_limit 1
brightness .8
normal on
}
#end
#if (Photons) // global photon block
photons {
spacing 0.03 // specify the density of photons
}
#end
}
//****************************************************************************************************
//*********************************** LIGHTING
************************************************
//****************************************************************************************************
camera {
location <0.0, -0.5, -5.0>
direction 1.5*z
right x*image_width/image_height
look_at <0.0, -2.0, 0.0>
}
sky_sphere {
pigment {
gradient y
color_map {
[0.0 rgb <0.6,0.7,1.0>]
[1.0 rgb <0.2,0.3,0.8>]
}
warp {repeat y flip y}
}
}
light_source {
<0, 0, 0> // light's position (translated below)
color rgb <1.5, 1.2, .6>*4 // light's color
translate <0, 20, 10>*1000
photons { // photon block for a light source
refraction on
reflection on
}
}
#if (MediaOk = on)
sphere {0,500
hollow
pigment {rgbt 1}
interior {
media { // atmospheric media sample
intervals 4
scattering { 1, rgb 0.01 }
samples 1, 10
confidence 0.9999
variance 1/1000
ratio 0.9
density {
planar
//poly_wave 1/4
scale 10
translate -5*y
turbulence .2
}
}
}
photons {collect off pass_through}
}
#end
//****************************************************************************************************
//*********************************** TEXTURES
************************************************
//****************************************************************************************************
#default {
texture { pigment {color rgb 1} finish{ambient 0.0} }
}
#declare GrassColor =
pigment {
cells
turbulence 2 lambda 5
scale .3
pigment_map {
[0.0 rgb <0.1, 0.2, 0.0>]
[0.3 rgb <0.2, 0.2, 0.0>]
[0.9 rgb <0.2, 0.3, 0.0>]
[1.0 rgbt <0.1, 0.3, 0.0, 1.0>]
}
}
#declare GrassPig =
pigment {
slope y
pigment_map {
[ 0.0 rgbt 1]
[ 0.4 rgbt 1]
[ 0.8 GrassColor]
[ 1.0 GrassColor]
}
}
#declare LRockPig =
pigment{
wrinkles
turbulence .5
scale 5
scale 2*y
color_map {
[0 rgb <.7,.5,.4>]
[1 rgb <.5,.4,.3>]
}
}
#declare MountPig =
pigment {
cells
turbulence <1,.1,1>
scale .24
pigment_map{
[0.0 rgb <.6,.3,.2>]
[1.0 rgb <.5,.2,.1>]
}
scale <100,1,100>*3
}
#declare MountainTex =
texture {
pigment {MountPig}
normal {crackle turbulence .5 scale <.2,.05,.2>*2 }
}
//****************************************************************************************************
//*********************************** SCENE
************************************************
//****************************************************************************************************
#declare Cany =
function {
pigment {
gradient x
turbulence <.5,.0,.5>
//lambda 0
color_map {
[0.0 rgb .59 ]
[0.29 rgb .59 ]
[0.3 rgb .51 ]
[0.4 rgb .1 ]
[0.5 rgb .05 ]
[0.6 rgb .1 ]
[0.7 rgb .55 ]
[0.71 rgb .59 ]
[1.0 rgb .59 ]
}
}
}
#declare G =
function {
pigment {
wrinkles
//turbulence 1
scale .25*y
scale 2
}
}
#declare GG =
function {
pigment {
granite
//turbulence 1
scale .5*y
scale .1
}
}
#if (IsoOk = off)
height_field {
function
1000, 1000 {
Cany(x,y,z*1).red*.5
}
//scale 3*z
translate <-.5,-1,-.5>
//rotate 180*y
scale 4
pigment {rgbt <1,0,0,.5>}
}
#else
#declare Terrain =
isosurface {
function { y - Cany(x,y*2,z).red*2 }//- G(x,y,z).red*GG(x,y,z).red*.5}
// function (can also contain declared functions
//function { fn_X(x, y, z) } // alternative declared function
contained_by { box { 0, <1.3,1,6> } } // container shape
//threshold 0.0 // optional threshold value for isosurface
[0.0]
accuracy 0.0001 // accuracy of calculation [0.001]
max_gradient 30 // maximum gradient the function can have
[1.1]
//evaluate 5, 1.2, 0.95 // evaluate the maximum gradient
//max_trace 1 // maybe increase for use in CSG [1]
//all_intersections // alternative to 'max_trace'
//open // remove visible container surface
translate <-.5,-1,-.5>
scale 4
texture {MountainTex scale .1}
}
#end
Terrain
#declare Obj = Terrain;
#declare Norm = <0, 0, 0>;
//#declare Start = < -880.5, 1000.5, -800>;
#declare Start = < -0.3, 1000.5, -1.8>;
#declare CPos = trace (
Obj, // object to test
Start, // starting point
-y, // direction
Norm ); // normal
#declare Start2 = <1, 1000.5, 3>;
#declare CPos2 = trace (
Obj, // object to test
Start2, // starting point
-y, // direction
Norm ); // normal
camera {
location CPos + <0,.3,0>
direction 1.25*z
look_at CPos2 + <0,-.5,0>
right x*image_width/image_height
}
box { <-1,-3,-2>,<1.5,-2.2,3>
pigment {rgbt 1}
normal {bumps .1 turbulence .2 scale .03 }
finish {reflection {.3,.9}}
interior {
ior 1.3
fade_power 1001
fade_distance 0.7
fade_color <0.5,0.8,0.6>
}
photons { // photon block for an object
target 1.0
refraction on
reflection on
}
}
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com> wrote: