243 lines
5.5 KiB
POVRay
243 lines
5.5 KiB
POVRay
// This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
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// To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/ or send a
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// letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA.
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// Persistence Of Vision raytracer sample file.
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// Updated: Feb-2013 for 3.7
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//
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// -w320 -h240
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// -w800 -h600 +a0.3
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#version 3.7;
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global_settings { assumed_gamma 1.3 }
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#include "stdinc.inc"
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#include "arrays.inc"
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sky_sphere {
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pigment {gradient y
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color_map {
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[0 color Blue*0.6]
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[1 color White]
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}
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}
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}
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#default {finish {ambient 0}}
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#declare RS = seed(464786);
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//----------------------------------------
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#declare CamLoc = < 5, 10,-10>;
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camera {
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location CamLoc
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right x*image_width/image_height // keep proportions with any aspect ratio
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angle 45
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look_at <0, 0, 0>
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}
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light_source {<-20, 30, -30>*3 color White*1.5}
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light_source {CamLoc color rgb 0.3}
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//----------------------------------------
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#declare Ground =
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isosurface {
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function {y - f_snoise3d(x/7, 0, z/2)*0.5}
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threshold 0
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max_gradient 1.1
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contained_by {box {<-100,-3,-100>, < 100, 1, 100>}}
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/* texture {
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pigment {color rgb < 1, 0.9, 0.65>}
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normal {granite bump_size 0.1 scale 0.01}
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}*/
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texture{
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pigment{
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color rgb <.518, .339, .138>
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}
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normal{
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bumps 5
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scale 0.05
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}
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finish{
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specular .3
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roughness .8
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}
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}
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texture{
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pigment{
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wrinkles
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scale 0.05
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color_map{
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[0.0 color rgbt <1, .847, .644, 0>]
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[0.2 color rgbt <.658, .456, .270, 1>]
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[0.4 color rgbt <.270, .191, .067, .25>]
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[0.6 color rgbt <.947, .723, .468, 0>]
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[0.8 color rgbt <.356, .250, .047, 1>]
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[1.0 color rgbt <.171, .136, .1, 1>]
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}
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}
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}
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}
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object {Ground}
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#declare RockColors = array[5]
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{
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color rgb < 0.5, 0.4, 0.35>,
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color rgb < 0.4, 0.5, 0.4>,
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color rgb < 0.8, 0.75, 0.65>,
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color rgb 0.8,
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color rgb 0.5
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}
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#declare CtrlPtrn = function {pattern {bozo scale < 7, 1, 2>}}
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#declare L = 0;
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#while(L < 750)
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#declare Pt = trace(Ground, < rand(RS)*25 - 15, 10, rand(RS)*25 - 10>, -y);
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#if(rand(RS) > CtrlPtrn(Pt.x, Pt.y, Pt.z))
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// sphere {o, 0.03 + pow(rand(RS), 2)*0.15
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isosurface {
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function {f_r(x, y, z) - 1 + f_noise3d(x, y, z)*0.5}
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threshold 0
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contained_by {sphere {o, 1}}
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#if(rand(RS) < 0.5) scale VRand_In_Box(< 1, 0.9, 1>, < 2, 1, 3>, RS) #end
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rotate y*rand(RS)*360
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translate -y*0.35
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scale 0.03 + pow(rand(RS),2)*0.35
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texture {
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pigment {Rand_Array_Item(RockColors, RS)*RRand(0.1, 1, RS)}
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normal {granite bump_size 0.5 scale 0.01}
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}
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translate Pt
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}
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#declare L = L + 1;
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#end
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#end
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#macro MakeSpineBunch(Pt, Dir, Jitter, Len, BaseRad, Num)
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#local L = 0;
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#while(L < Num)
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#local NewDir = vnormalize(Dir + Jitter*(< rand(RS), rand(RS), rand(RS)>*2 - 1));
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cone {Pt, BaseRad, Pt + NewDir*Len, 0}
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#local L = L + 1;
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#end
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#end
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#macro MakeSpineRows(Body, Stretch, AltJitter, Ridges, Bunches, Spines, SpineJitter, SpineLen, SpineRad)
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#declare J = 0;
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#local AltDelta = 180/Bunches;
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union {
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#while(J < Ridges)
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#declare K = 0;
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#while(K < Bunches)
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#declare Orig = vrotate(-y*50, x*(K + rand(RS)*AltJitter)*AltDelta);
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#declare Orig = vrotate(Orig, y*(360*J/Ridges + 360/(Ridges*4)))*Stretch;
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#declare PtNorm = y;
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#declare Pt = trace(Body, Orig,-Orig, PtNorm);
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MakeSpineBunch(Pt, PtNorm, SpineJitter, SpineLen, SpineRad, Spines)
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#declare K = K + 1;
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#end
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#declare J = J + 1;
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#end
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}
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#end
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#declare sinw = function (x) {(sin(x) + 1)/2}
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#declare Ridges = 40;
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#declare RidgeDepth = 0.075;
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#declare cactus1Body =
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isosurface {
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function {sqrt(x*x + pow(y - sqrt((x*x/4) + (z*z/4))*1.5, 2) + z*z) - 1 -
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(sin(atan2(x, z)*Ridges)*0.5*RidgeDepth)
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}
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threshold 0
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max_gradient 5
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contained_by {sphere {< 0, 0, 0>, 3.1}}
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texture {
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pigment {radial
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color_map {
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[0.00 color rgb < 0.3, 0.65, 0.4>*0.8]
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[0.65 color rgb < 0.3, 0.65, 0.4>*0.8]
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[1.00 color rgb < 0.3, 0.65, 0.4>*0.2]
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}
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frequency Ridges sine_wave
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}
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normal {dents 0.1 poly_wave 2 scale < 1, 0.15, 1>}
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}
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}
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#declare Cactus1 =
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union {
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object {cactus1Body}
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object {MakeSpineRows(cactus1Body, 1, 0.2, Ridges, 24, 3, 0.5, 1, 0.01)
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texture {pigment {color rgb < 0.98, 0.98, 0.5>}}
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}
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scale < 1, 0.75, 1>
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translate y*0.35
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}
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#declare Ridges = 32;
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#declare RidgeDepth = 0.1;
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#declare cactus2Body =
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isosurface {
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function {
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f_r(x, y*0.35, z) - 1 - sqrt(x*x + z*z)*0.2
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- (sinw(atan2(x, z)*Ridges)*RidgeDepth)
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}
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threshold 0
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max_gradient 5
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contained_by {sphere {< 0, 0, 0>, 3.1}}
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texture {
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pigment {color rgb < 0.3, 0.65, 0.4>}
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normal {bozo 0.1 scale < 1, 0.15, 1>}
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}
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}
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#declare Cactus2 =
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union {
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object {cactus2Body}
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object {MakeSpineRows(cactus2Body, < 1, 3, 1>, 1, Ridges, 64, 3, 1, 0.5, 0.01)
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texture {pigment {color rgb < 0.98, 0.98, 0.5>}}
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}
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translate y*2
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}
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#declare Ridges = 75;
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#declare RidgeDepth = 0.05;
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#declare cactus3Body =
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isosurface {
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function {
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sqrt(x*x + pow((y/1.5),2) + z*z) - 1 - sqrt(x*x + z*z)*0.2
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- (sinw(atan2(x, z)*Ridges)*RidgeDepth)
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}
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threshold 0
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max_gradient 5
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contained_by {sphere {< 0, 0, 0>, 3.1}}
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texture {
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pigment {color rgb < 0.1, 0.5, 0.25>}
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normal {bozo 0.1 scale 0.15}
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}
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}
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#declare Cactus3 =
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union {
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object {cactus3Body}
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object {MakeSpineRows(cactus3Body, < 1, 1.5, 1>, 1, Ridges, 24, 5, 1, 0.35, 0.01)
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texture {pigment {color rgb < 0.98, 0.98, 0.85>}}
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}
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translate y*1.25
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}
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object {Cactus1 translate < 3, 0,-3>}
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object {Cactus2}
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object {Cactus3 translate <-2, 0,-3.5>}
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//----------------------------------------
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