1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
// Camera previews for Insert Menu: Cameras
// by Bob Hughes August 28, 2001
// use the following command switches, naming each accordingly
// modified Aug. 29 by Christoph Hormann
// Updated to 3.7 by Friedrich A. Lohmueller, June-2012.
// +fs4 +w120 +h60 +a0.2 +r2 +am2 +j0.5
#version 3.7;
global_settings{ assumed_gamma 1.0 }
/*
#declare Typ=1; // perspective
#declare Typ=2; // orthographic
#declare Typ=3; // fisheye
#declare Typ=4; // ultra_wide_angle
#declare Typ=5; // omnimax
#declare Typ=6; // panoramic
#declare Typ=7; // cylinder
#declare Typ=8; // spherical
#declare Typ=9; // focus
#declare Typ=10; // normal
#declare Typ=11; // sky
*/
#if (Typ>8)
#declare Lens=0;
#else
#declare Lens=Typ-1;
#end
//#declare Lens=0; // type listed above
#declare Focus=no;
#declare Normal=no;
#declare Sky=no;
#if (Typ=9)
#declare Focus=yes;
#end
#if (Typ=10)
#declare Normal=yes;
#end
#if (Typ=11)
#declare Sky=yes;
#end
/* ----------------------------------------------------------------------- */
// the camera
camera
{
#switch (Lens)
#case (0)
perspective
#break
#case (1)
orthographic
#break
#case (2)
fisheye
#break
#case (3)
ultra_wide_angle
#break
#case (4)
omnimax
#break
#case (5)
panoramic
#break
#case (6)
cylinder 1
#break
#case (7)
spherical
#break
#end
// (---viewpoint---)
location <0.0, 6.0, -6.0> // position of camera <X Y Z>
// (---sky---)
#if (Sky=yes)
sky <0.5,1,0> // for tilting the camera
#end
// (---aspect---)
#if (Lens!=1)
right x*(image_width/image_height)
// which way is +right <X Y Z> and aspect ratio
up y // which way is +up <X Y Z>
#else
right x*image_width/image_height
// right x*6 // for orthographic only
//up y*3
#end
// (---center---)
look_at <1.0, 1.0, 1.0> // point center of view at this point <X Y Z>
// (---zoom---)
// direction 2.0*z // which way are we looking <X Y Z> & zoom
#if (Lens!=7)
#if (Lens!=3)
angle 50//150 // overrides "direction" with specific angle [67 typical]
#else
angle 123 // for ultra_wide_angle lens example
#end
#end
// (---normal---)
#if (Normal=yes)
normal { ripples 0.1 scale 0.3 } // perturb the camera lens with a pattern
#end
// (---focal blur---)
#if (Focus=yes)
aperture 3 // 0...N (bigger is narrower depth of field)
blur_samples 30 // # of rays per pixel
focal_point <1,1,2> // x,y,z point that is in focus
confidence 0.9
variance 0 // how precise focal blur is calculated
#end
// (---spherical camera---)
#if (Lens=7)
angle 360
180
#end
}
/* ----------------------------------------------------------------------- */
// point light
light_source
{
0,1.5
translate <10, 20, -10> // <x y z> position of light
}
/* ----------------------------------------------------------------------- */
#declare Floor=
plane
{
y,-0.001
pigment {rgb 1}
}
Floor
/* ----------------------------------------------------------------------- */
#declare CSG1=
difference
{
box {0,2}
sphere {1,1.5 inverse}
sphere {1,1.25}
translate -1 // center on world origin
}
#declare CSG2=
difference
{
box {0,2}
sphere {1,1.25 inverse}
translate -1 // center on world origin
}
object
{
CSG1
pigment {rgb 1}
translate <2.75,1,1>
}
object
{
CSG2
pigment {rgb 1}
translate <-0.75,1,1>
}
/* ----------------------------------------------------------------------- */
|
