/
chiaroscuro.scm
63 lines (54 loc) · 1.41 KB
/
chiaroscuro.scm
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
(import (rnrs) (misc random-weighted) (context-free-art))
(define (black)
(when (iterate?)
(call-random-weighted
(60 (lambda ()
(block
(lambda ()
(size 0.6)
(circle)))
(block
(lambda ()
(x 0.1)
(rotate 5)
(size 0.99)
(brightness -0.01)
(alpha -0.01)
(black)))))
(1 (lambda ()
(block
(lambda ()
(white)
(black))))))))
(define (white)
(when (iterate?)
(call-random-weighted
(60 (lambda ()
(block
(lambda ()
(size 0.6)
(circle)))
(block
(lambda ()
(x 0.1)
(rotate -5)
(size 0.99)
(brightness 0.01)
(alpha -0.01)
(white)))))
(1 (lambda ()
(block
(lambda ()
(black)
(white))))))))
(define (chiaroscuro)
(when (iterate?)
(block
(lambda ()
(brightness 0.5)
(black)))))
(background (lambda () (brightness -0.5)))
(viewport '(-3 6 -2 6))
(threshold 0.03)
(start-shape (lambda () (chiaroscuro)))
(run-model)