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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
#!/usr/bin/env python3
#########################################################################
# Copyright (C) 2011 Tavian Barnes <tavianator@tavianator.com> #
# #
# This file is part of Dimension. #
# #
# Dimension 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. #
# #
# Dimension 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/>. #
#########################################################################
import argparse as _argparse
import re as _re
import os as _os
import sys as _sys
from contextlib import contextmanager as _contextmanager
# Specialized parser to print --version output to stdout rather than stderr,
# to pass distcheck
class _DimensionArgumentParser(_argparse.ArgumentParser):
def exit(self, status = 0, message = None):
if message:
file = _sys.stdout if status == 0 else _sys.stderr
file.write(message)
_sys.exit(status)
# Change the working directory within a with statement
@_contextmanager
def _chdir(newwd):
oldwd = _os.getcwd()
try:
_os.chdir(newwd)
yield
finally:
_os.chdir(oldwd)
# Parse the command line
_parser = _DimensionArgumentParser(
epilog = "@PACKAGE_STRING@\n"
"@PACKAGE_URL@\n"
"Copyright (C) 2009-2011 Tavian Barnes <@PACKAGE_BUGREPORT@>\n"
"Licensed under the GNU General Public License",
formatter_class = _argparse.RawDescriptionHelpFormatter,
conflict_handler = "resolve", # For -h as height instead of help
)
_parser.add_argument("-V", "--version", action = "version",
version = "@PACKAGE_STRING@")
_parser.add_argument("-w", "--width", action = "store", type = int,
default = 768,
help = "image width (default: %(default)s)")
_parser.add_argument("-h", "--height", action = "store", type = int,
default = 480,
help = "image height (default: %(default)s)")
_parser.add_argument("--region", action = "store", type = str,
help = "subregion to render, as \"(x1, y1)->(x2, y2)\"")
_parser.add_argument("-v", "--verbose", action = "store_true",
help = "print more information")
_parser.add_argument("-q", "--quiet", action = "store_true",
help = "print less information")
_parser.add_argument("--threads", action = "store", type = int,
help = "the number of threads to render with")
_parser.add_argument("--quality", action = "store", type = str,
help = "the scene quality")
_parser.add_argument("--adc-bailout", action = "store", type = str,
help = "the ADC bailout (default: 1/255)")
_parser.add_argument("-o", "--output", action = "store", type = str,
help = "the output image file")
_parser.add_argument("input", action = "store", type = str,
help = "the input scene description file")
# Debugging/testing options
_parser.add_argument("--strict", action = "store_true",
help = _argparse.SUPPRESS)
_args = _parser.parse_args()
# Calculate subregion
if _args.region is None:
_args.region_x = 0
_args.region_y = 0
_args.region_width = _args.width
_args.region_height = _args.height
else:
_pattern = r"^\s*\(\s*(\d*)\s*,\s*(\d*)\s*\)\s*->\s*\(\s*(\d*)\s*,\s*(\d*)\s*\)\s*$"
_match = _re.match(_pattern, _args.region)
if _match is None:
raise RuntimeError("range specified in invalid format.")
_args.region_x = int(_match.group(1))
_args.region_y = int(_match.group(2))
_region_xmax = int(_match.group(3))
_region_ymax = int(_match.group(4))
_args.region_width = _region_xmax - _args.region_x
_args.region_height = _region_ymax - _args.region_y
if _args.region_width <= 0 or _args.region_height <= 0:
raise RuntimeError("region is degenerate.")
if _region_xmax >= _args.width or _region_ymax > _args.height:
raise RuntimeError("region exceeds bounds of image.")
# Default output is basename(input).png
if _args.output is None:
_noext = _os.path.splitext(_os.path.basename(_args.input))[0]
_args.output = _noext + ".png"
# Imports available to scripts
from math import *
from dimension import *
# Display a progress bar
def _progress_bar(str, progress):
try:
if not _args.quiet:
print(str, end = ' ')
_sys.stdout.flush()
term_width = terminal_width()
width = term_width - (len(str) + 1)%term_width
for i in range(width):
progress.wait((i + 1)/width)
print('.', end = '')
_sys.stdout.flush()
print()
_sys.stdout.flush()
progress.finish()
except KeyboardInterrupt:
print()
_sys.stdout.flush()
progress.cancel()
try:
progress.finish()
except:
# Swallow the failure exception
pass
raise
# --strict option
die_on_warnings(_args.strict)
# Defaults/available variables
image_width = _args.width
image_height = _args.height
objects = []
lights = []
camera = PerspectiveCamera()
default_texture = Texture(finish = Ambient(0.1) + Diffuse(0.7))
default_interior = Interior()
background = Black
recursion_limit = None
# Execute the input script
if not _args.quiet:
print("Parsing scene ...")
# Run with the script's dirname as the working directory
_workdir = _os.path.dirname(_os.path.abspath(_args.input))
parse_timer = Timer()
with open(_args.input) as _fh, _chdir(_workdir):
exec(compile(_fh.read(), _args.input, "exec"))
parse_timer.stop()
# Make the canvas
canvas = Canvas(width = _args.region_width, height = _args.region_height)
canvas.optimize_PNG()
# Make the scene object
scene = Scene(canvas = canvas,
objects = objects,
lights = lights,
camera = camera)
scene.region_x = _args.region_x
scene.region_y = _args.region_y
scene.outer_width = _args.width
scene.outer_height = _args.height
scene.default_texture = default_texture
scene.background = background
if recursion_limit is not None:
scene.recursion_limit = recursion_limit
if _args.threads is not None:
scene.nthreads = _args.threads
if _args.quality is not None:
scene.quality = _args.quality
if _args.adc_bailout is not None:
_pattern = r"^(.*)/(.*)"
_match = _re.match(_pattern, _args.adc_bailout)
if _match is not None:
_args.adc_bailout = float(_match.group(1))/float(_match.group(2))
scene.adc_bailout = float(_args.adc_bailout)
# Raytrace the scene
if scene.nthreads == 1:
render_message = "Rendering scene"
else:
render_message = "Rendering scene (using %d threads)" % scene.nthreads
_progress_bar(render_message, scene.raytrace_async())
# Write the output file
export_timer = Timer()
_progress_bar("Writing %s" % _args.output, canvas.write_PNG_async(_args.output))
export_timer.stop()
# Print execution times
if _args.verbose:
print()
print("Parsing time: ", parse_timer)
print("Bounding time: ", scene.bounding_timer)
print("Rendering time: ", scene.render_timer)
print("Exporting time: ", export_timer)
|
