Benutzer:Smial/povray1
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Zoom Prinzip 
Eigentlich sollte hier der Sourcecode für das Bild rechts stehen, aber durch einen HD-Crash ist der verloren. Aber ich habe eine ältere Version wiedergefunden - muß mal schauen, ob ich das bei Gelegenheit wieder zurechtbasteln kann.
The following code does NOT belong to the image at the right. It's an older version, and erroneous. Due to an HD crash the original source is lost. I'll try to rebuild it, but in the meantime the code below may be useful for someone.
// Persistence of Vision Ray Tracer Scene Description File
// File: Zoom.pov
// Vers: 3.5
// Desc: Strahlengang in einem Zoomobjektiv
// Date: 31.12.2005
// Auth: Rainer Knaepper
// Quellen: http://www.arachnoid.com/raytracing/index.html
// http://www.arachnoid.com/raytracing/telescope_galilean_dissected_oblique.pov
// http://www.foto-net.de/net/objektive/kostruktion.html
// LINOS Photonics WinLens 4.3
#declare MINZOOM = 6.5;
#declare MAXZOOM = 10;
#declare STRAHLEN = .08;
#declare NBK7 = 1.518;
#declare SILICA = 1.458;
difference {
//*PMName Aperture Plate
box {
//*PMName Plate
<-0.01, -10, -10>, <0.01, 10, 10>
scale 1
rotate <0, 0, 0>
translate <0, 0, 0>
hollow false
}
union {
//*PMName Holes
cylinder {
<-0.1, 0, 0>, <0.1, 0, 0>, STRAHLEN
translate y*1.8
hollow false
}
cylinder {
<-0.1, 0, 0>, <0.1, 0, 0>, STRAHLEN
translate y*.9
hollow false
}
cylinder {
<-0.1, 0, 0>, <0.1, 0, 0>, STRAHLEN
translate y*0
hollow false
}
cylinder {
<-0.1, 0, 0>, <0.1, 0, 0>, STRAHLEN
translate y*(-.9)
hollow false
}
cylinder {
<-0.1, 0, 0>, <0.1, 0, 0>, STRAHLEN
translate y*(-1.8)
hollow false
}
hollow false
}
translate x*300
pigment {
color rgb <.5, 1, 0.0156863>
}
hollow false
photons { collect off }
}
global_settings {
adc_bailout 0.0039216
max_trace_level 12
max_intersections 12
noise_generator 2
photons {
count 40000
media 40000, 0.0005
autostop 1
}
}
union {
//*PMName Variogon
difference {
//*PMName Dissectable
union {
//*PMName Component Collection
difference {
//*PMName Scope Tube
cylinder {
//*PMName Main Tube
<0, 0, 0>, <12, 0, 0>, 2.2
}
cylinder {
//*PMName Main Tube Interior
<-0.001, 0, 0>, <12.001, 0, 0>, 2
}
pigment {
color rgb <0.1, 0.1, 0.1>
}
}
pigment {
color rgb <0.6, 0.01, 0.2>
}
scale 1
finish {
specular 0.1
reflection {
rgb <0.1, 0.1, 0.1>
}
}
}
box {
//*PMName Cross-section Box
<-.10, -3, 0>, <12.1, 3, -3>
pigment {
color rgb <0.01, 0.01, 0.2>
}
}
photons { collect off }
}
union {
//*PMName Non-dissectable
intersection {
//*PMName Photon Volume dissector
box {
//*PMName Thin slice Dissection Box
<-4.5, -2, 0.1>, <18, 2, -0.1>
scale 1
rotate <0, 0, 0>
translate <0, 0, 0>
hollow
}
pigment {
color rgbf <1, 1, 1, .999>
}
interior {
media {
scattering {
1, rgb <1, 1, 1>
extinction 0
}
}
}
photons {
target
collect off
}
hollow
}
intersection {
//*PMName Objective Lens Front
cylinder {
<-2, 0, 0>, <2, 0, 0>, 2
scale 1
}
intersection {
sphere {
<9.6, 0, 0>, 10
}
sphere {
<-9.6, 0, 0>, 10
}
}
pigment {
color rgbt <0.27451, 0.37255, 0.37255, 0.95>
}
finish {
specular 0.1
reflection {
rgb <0.05, 0.00, 0.00>
}
}
interior {
ior 1.5
}
hollow
translate x*11.8
}
difference {
//*PMName konvex
cylinder {
<-2, 0, 0>, <2, 0, 0>, 1.6
scale 1
}
union {
sphere {
<-3.05, 0, 0>, 3
}
sphere {
<+5.05, 0, 0>, 5
}
}
pigment {
color rgbt <0.34902, 0.50588, 0.53725, 0.95>
}
finish {
specular 0.1
reflection {
rgb <0.05, 0.01, 0.01>
}
}
hollow
interior {
ior 1.55
}
translate <MINZOOM + clock * (MAXZOOM-MINZOOM),0,0>
}
}
intersection {
//*PMName Objective Lens 3
cylinder {
<-2, 0, 0>, <2, 0, 0>, 1.9
scale 1
}
intersection {
sphere {
<9.6, 0, 0>, 10
}
sphere {
<-9.6, 0, 0>, 10
}
}
pigment {
color rgbt <0.27451, 0.37255, 0.37255, 0.95>
}
finish {
specular 0.1
reflection {
rgb <0.05, 0.00, 0.00>
}
}
interior {
ior 1.5
}
hollow
translate x*4.5
}
intersection {
//*PMName Objective Lens Rear
cylinder {
<-2, 0, 0>, <2, 0, 0>, 1.9
scale 1
}
intersection {
sphere {
<4.4, 0, 0>, 5
}
sphere {
<-4.4, 0, 0>, 5
}
}
pigment {
color rgbt <0.27451, 0.37255, 0.37255, 0.95>
}
finish {
specular 0.1
reflection {
rgb <0.05, 0.00, 0.00>
}
}
interior {
ior 1.5
}
hollow
translate x*.5
}
}
box {
//*PMName Mattscheibe
<-.050, -5, -5>, <0, 5, 5>
scale 1
rotate <0, 0, 0>
translate <0, 0, 0>
//*hollow
pigment {
color rgbf <1, 1, 1, 0.9>
}
interior {
media {
scattering {
1, rgb <1, 1, 1>
extinction 0
}
}
}
//*photons {
//* target off
//* collect off
//*}
translate -x*4.5
}
light_source {
//*PMName Area Light
<25, 5, -61.525>, rgb <4, 4, 4>
spotlight
radius 45
falloff 45
point_at <0, 0, 1>
media_interaction off
media_attenuation off
photons {
}
}
sky_sphere {
pigment {
color rgb <0.101961, 0.160784, 0.2>
}
}
plane {
<0, 1, 0>, 0
pigment {
agate
agate_turb 0.5
color_map {
[ 0 color rgb <0.25098, 0.25098, 0.25098>
]
[ 0.1 color rgb <0.458824, 0.458824, 0.458824>
]
}
}
scale 1
rotate <0, 0, 0>
translate y*(-10000)
photons { collect off }
}
light_source {
//*PMName Scope Photon Source
<100000, 0, 0>, rgb <0, 20, 20>
spotlight
radius 10
falloff 10
point_at <0, 0, 1>
media_interaction off
media_attenuation off
photons {
refraction on
}
}
camera {
//*PMName Wide Cam
perspective
location <4, 20, -80>
sky <0, 1, 0>
direction <0, 0, 1>
right <1.3333, 0, 0>
up <0, 1, 0>
look_at <4, 0, 0>
angle 13
}