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-rw-r--r--dimension/dimension.in230
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diff --git a/dimension/dimension.in b/dimension/dimension.in
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--- a/dimension/dimension.in
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-#!/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
-import re
-import os
-import sys
-from contextlib import 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 working_directory(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()
-
-from dimension import *
-
-# 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"
-
-# Display a progress bar
-def progress_bar(str, future):
- 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):
- future.wait((i + 1)/width)
- print(".", end = "")
- sys.stdout.flush()
-
- print()
- sys.stdout.flush()
-
- future.join()
- except KeyboardInterrupt:
- print()
- sys.stdout.flush()
-
- future.cancel()
- try:
- future.join()
- except RuntimeError:
- # Swallow the failure exception
- pass
- raise
-
-# --strict option
-die_on_warnings(args.strict)
-
-# Sandbox dictionary for scene
-sandbox = __import__("dimension").__dict__
-sandbox.update(__import__("math").__dict__)
-
-# Defaults/available variables
-sandbox.update({
- "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, working_directory(workdir):
- exec(compile(fh.read(), args.input, "exec"), sandbox)
-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 = sandbox["objects"],
- lights = sandbox["lights"],
- camera = sandbox["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 = sandbox["default_texture"]
-scene.default_interior = sandbox["default_interior"]
-scene.background = sandbox["background"]
-if sandbox["recursion_limit"] is not None:
- scene.recursion_limit = sandbox["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)
-
-# Ray-trace 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.ray_trace_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)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 11:52:16 +0000