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#!/usr/bin/env python3
#########################################################################
# Copyright (C) 2010-2011 Tavian Barnes <tavianator@tavianator.com> #
# #
# This file is part of The Dimension Test Suite. #
# #
# The Dimension Test Suite is free software; you can redistribute it #
# and/or modify it under the terms of the GNU General Public License as #
# published by the Free Software Foundation; either version 3 of the #
# License, or (at your option) any later version. #
# #
# The Dimension Test Suite is distributed in the hope that it will be #
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty #
# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU #
# General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <http://www.gnu.org/licenses/>. #
#########################################################################
from math import *
from dimension import *
# Treat warnings as errors for tests
die_on_warnings(True)
# Canvas
canvas = Canvas(width = 768, height = 480)
have_PNG = True
try:
canvas.optimize_PNG()
except OSError as e:
if e.errno == errno.ENOSYS:
have_PNG = False
else:
raise
# Camera
camera = PerspectiveCamera(location = (0, 0.25, -4),
look_at = 0)
camera.transform(rotate(53*Y))
# Lights
lights = [
PointLight(location = (-15, 20, 10), color = White),
]
# Objects
hollow_cube = Difference(
[
Box(
(-1, -1, -1), (1, 1, 1),
texture = Texture(
pigment = Color(0, 0, 1, trans = 0.75, filter = 1/3),
finish = Reflection(0.5),
),
interior = Interior(
ior = 1.1,
),
)
.transform(rotate(45*X)),
Sphere(
center = 0, radius = 1.25,
texture = Texture(
pigment = Green,
finish = Phong(strength = 0.2, size = 40),
),
)
],
)
arrow = Union(
[
Cylinder(bottom = -1.25*Y, top = 1.25*Y, radius = 0.1),
Cone(
bottom = 1.25*Y, bottom_radius = 0.1,
top = 1.5*Y, top_radius = 0,
open = True
),
],
pigment = ColorMap(
Gradient(Y),
{
0/6: Red,
1/6: Orange,
2/6: Yellow,
3/6: Green,
4/6: Blue,
5/6: Magenta,
6/6: Red,
},
)
.transform(scale(1, 2.75, 1))
.transform(translate(-1.25*Y)),
)
torii = Union(
[
Torus(major_radius = 0.15, minor_radius = 0.05)
.transform(translate(-Y)),
Torus(major_radius = 0.15, minor_radius = 0.05),
Torus(major_radius = 0.15, minor_radius = 0.05)
.transform(translate(Y)),
],
texture = Texture(
pigment = Blue,
finish = Ambient(1),
),
)
spike = Union([arrow, torii]).transform(rotate(-45*X))
strip_textures = [
Texture(pigment = Red),
Texture(pigment = Orange),
Texture(pigment = Yellow),
]
strip_triangles = []
a = 0
b = Vector(0, sqrt(3)/2, 0.5)
c = Z
for i in range(128):
strip_triangles.append(Triangle(a, b, c, texture = strip_textures[i%3]))
a = b
b = c
c = a + Z
strip = Union(strip_triangles).transform(translate(5, -2, -4))
ground = Plane(
normal = Y, distance = -2,
pigment = PigmentMap(
Checker(),
[
White,
ColorMap(Checker(), [Black, White]).transform(scale(1/3))
],
),
)
objects = [
hollow_cube,
spike,
strip,
ground,
]
# Sky sphere
sky_sphere = SkySphere(
[
ColorMap(
pattern = Gradient(Y),
map = {
0: Orange,
0.35: Color(0, 0.1, 0.2, trans = 0.1, filter = 0.0),
},
),
]
)
# Scene
scene = Scene(canvas = canvas,
objects = objects,
lights = lights,
camera = camera)
scene.default_texture = Texture(finish = Ambient(0.1) + Diffuse(0.7))
scene.background = Clear
scene.sky_sphere = sky_sphere
scene.adc_bailout = 1/255
scene.recursion_limit = 5
scene.raytrace()
if have_PNG:
canvas.write_PNG('demo.png')
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