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Try this for starters:
// Bill Walker "Bald Eagle" November 2019
// for user Drawliphant
// in thread
http://news.povray.org/povray.general/thread/%3Cweb.5dcb6921c35fe2b54eec112d0%40news.povray.org%3E/
#version 3.8;
global_settings {assumed_gamma 1.0 }
#include "colors.inc"
#include "functions.inc"
#include "math.inc"
#declare Zoom = 50;
camera {
orthographic
right x*image_width/Zoom
up y*image_height/Zoom
location <0, 0, -10>
look_at <0, 0, 0>
}
sky_sphere {pigment {rgb 1}}
light_source {<2, 5, -10> rgb 1 shadowless}
//light_source {<-10, 8, -1> rgb 0.8} // fill light
#declare Tan = texture {pigment {rgb <0.92, 0.60, 0.20>} finish {specular 0.2}}
#declare Tan2 = texture {pigment {rgb <0.92, 0.60, 0.20>} finish {diffuse 0.7
specular 0.2 reflection 0.02}}
#declare Gray = texture {pigment {rgb 0.5}}
#declare Gray2 = texture {pigment {rgb 0.5}finish {diffuse 0.7 specular 0.2
reflection 0.02}}
#declare Shade = 1;
#declare _Red = texture {pigment {rgb <1, 0, 0>*Shade} finish {diffuse 0.7}}
#declare _Green = texture {pigment {rgb <0, 1, 0>*Shade} finish {diffuse 0.7}}
#declare _Blue = texture {pigment {rgb <0, 0, 1>*Shade} finish {diffuse 0.7}}
#declare Checker = texture {pigment {checker rgb 0 rgb 1} scale 2 finish
{diffuse 1}}
//##########POV-RAY###############Bald
Eagle##############2019###################
#declare Square = union {
triangle {<-5, 0, -5>, <-5, 0, 5>, <5, 0, -5>}
triangle {<5, 0, -5>, <-5, 0, 5>, <5, 0, 5> }
texture {Checker}
}
#declare Axes =
union {
#declare Line = 0.1;
#declare Base = Line*3;
#declare Length = 3.5;
#declare Ext = 0.5;
cylinder {<0, 0, 0>, <Length, 0, 0>, Line texture {_Red}}
cone {<Length, 0, 0>, Base, <Length+Ext, 0, 0>, 0 texture {_Red}}
text {ttf "timrom.ttf", "Blur No Blur", 0.02, 0.0 texture {_Red}
translate <-2, -1.125, 0>
}
cylinder {<0, 0, 0>, <0, Length, 0>, Line texture {_Green}}
cone {<0, Length, 0>, Base, <0, Length+Ext, 0>, 0 texture {_Green}}
cylinder {<0, 0, 0>, <0, 0, Length>, Line texture {_Blue}}
cone {<0, 0, Length>, Base, <0, 0, Length+Ext>, 0 texture {_Blue}}
//no_shadow
}
//##########POV-RAY###############Bald
Eagle##############2019###################
object {Square rotate -x*90 translate z*6}
object {Axes}
#declare T_Glass=texture{
pigment{
color rgbt 1
}
finish {
diffuse 0.04
//reflection{ 0.5 fresnel on }
//conserve_energy
}
}
#declare I_Glass=interior{
ior 1.005 // <--- change the IOR
fade_power 2 //1.5
fade_distance 1
fade_color <0.70, 0.7, 0.9>
//dispersion 1.01
//dispersion_samples 100
}
#declare Thickness = 0.01;
#declare BlurPlane = function {z + f_noise3d(x, y, z)}
#declare Range = 1;
#declare Whole = yes;
#declare Label = no;
#declare Gradient = 50;
#declare Min_factor= 0.6;
// for scaling the noise function
#declare XS = 0.001;
#declare YS = 0.001;
#declare ZS = 0.01;
isosurface {
function {abs (BlurPlane (x/XS, y/YS, z/ZS)) - Thickness}
//open
threshold 0.5
//max_gradient 10
accuracy 0.01
evaluate Gradient*Min_factor, sqrt(Gradient/(Gradient*Min_factor)), min
(0.7, 1.0)
contained_by {box {<-3, -2, -1>*Range, <Whole*3, 2.3, 1>*Range}}
hollow
texture {T_Glass}
interior {I_Glass}
//texture {Tex1}
scale 1
rotate x*1 // Seems absolutely essential! :O
translate <-1.5, -0.5, -7>
}
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