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
|
import OpenGL.GL as gl
import numpy
import glitch, glitch.glut
from glitch.limbo.objects import Grid
class Tree(glitch.Node):
def draw(self, ctx):
gl.glBegin(gl.GL_LINES)
gl.glVertex3f(0, 0, 0)
gl.glVertex3f(0, 1, 0)
gl.glEnd()
# XXX: Not a very pretty tree. Use an L-system?
def make_tree(depth):
if depth > 0:
children = [
glitch.Translate(y=1, children=[
glitch.Scale(scale, scale, scale,
children=[make_tree(depth - 1)])])
for (i, scale) in
zip(xrange(4), numpy.random.uniform(0.7, 0.8, 4))]
else:
children = []
rotation = numpy.random.uniform(-35, 55) / (depth + 1)
tree = glitch.Rotate(rotation, 0.5, 0, 0.5, children=[
Tree(children=children)])
return tree
if __name__ == '__main__':
grid = glitch.Rotate(90, 1, children=[Grid()])
tree = glitch.Scale(0.7, 0.3, 0.7, children=[make_tree(4)])
camera = glitch.glut.GLUTCamera(eye=[2, 1, 2], ref=[0, 0.5, 0],
children=[grid, tree])
camera.run()
|
