commit 18365e97d05d6a15a165295aded2e903a3842243 Author: Tudor Date: Sun Aug 30 19:43:54 2015 -0400 Initial code commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ba74660 --- /dev/null +++ b/.gitignore @@ -0,0 +1,57 @@ +# Byte-compiled / optimized / DLL files +__pycache__/ +*.py[cod] + +# C extensions +*.so + +# Distribution / packaging +.Python +env/ +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib/ +lib64/ +parts/ +sdist/ +var/ +*.egg-info/ +.installed.cfg +*.egg + +# PyInstaller +# Usually these files are written by a python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.coverage +.coverage.* +.cache +nosetests.xml +coverage.xml +*,cover + +# Translations +*.mo +*.pot + +# Django stuff: +*.log + +# Sphinx documentation +docs/_build/ + +# PyBuilder +target/ diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..9591157 --- /dev/null +++ b/LICENSE @@ -0,0 +1,662 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program 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 Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. + diff --git a/MANIFEST.in b/MANIFEST.in new file mode 100644 index 0000000..caaa723 --- /dev/null +++ b/MANIFEST.in @@ -0,0 +1,3 @@ +include LICENSE +include *.rst +include *.py \ No newline at end of file diff --git a/README.rst b/README.rst new file mode 100644 index 0000000..965229e --- /dev/null +++ b/README.rst @@ -0,0 +1,89 @@ +cube2sphere +=========== + +``cube2sphere`` is a Python script to map an equirectangular +(cylindrical projection; skysphere) map into 6 cube (cubemap; skybox) +faces. + +Usage +===== + +:: + + $ cube2sphere -h + usage: cube2sphere [-h] [-v] [-r ] [-R ] + [-o ] [-f ] [-b ] [-t ] [-V] + + + Maps 6 cube (cubemap, skybox) faces into an equirectangular (cylindrical + projection, skysphere) map. + + positional arguments: + source front cube face filename + source back cube face filename + source right cube face filename + source left cube face filename + source top cube face filename + source bottom cube face filename + + optional arguments: + -h, --help show this help message and exit + -v, --version show program's version number and exit + -r , --resolution + resolution for rendered map (defaults to 1024x512) + -R , --rotation + rotation in degrees to apply before rendering map (z + is up) + -o , --output + filename for rendered map (defaults to "out") + -f , --format + format to use when saving map, i.e. "PNG" or "TGA" + -b , --blender-path + filename of the Blender executable (defaults to + "blender") + -t , --threads + number of threads to use when rendering (1-64) + -V, --verbose enable verbose logging + +Supported output formats depend on the Blender installation, but will +generally include TGA, IRIS, JPEG, MOVIE, IRIZ, RAWTGA, AVIRAW, AVIJPEG, PNG, +BMP, and FRAMESERVER. + +``cube2sphere`` can be run in a headless environment (e.g., a +server). + +Examples +======== + +If we wanted to stitch 6 cube faces named ``${face}.jpg`` into a 2048x1024 TGA equirectangular map, we could use the following command: + +:: + + $ cube2sphere front.jpg back.jpg right.jpg left.jpg top.jpg bottom.jpg -r 2048 1024 -fTGA -ostitched + +This would generate ``stitched.tga`` in the working directory. + +Installation +============ + +``cube2sphere`` can be easily installed with ``pip``. It depends on +Blender being installed on the system. + +Linux +----- + +:: + + $ apt-get install blender + $ pip install cube2sphere + +Windows +------- + +Install `Blender`_, and add ``blender.exe`` to ``PATH``. Finally, + +:: + + pip install cube2sphere + +.. _Blender: https://www.blender.org/ \ No newline at end of file diff --git a/cube2sphere/__init__.py b/cube2sphere/__init__.py new file mode 100644 index 0000000..9e96a71 --- /dev/null +++ b/cube2sphere/__init__.py @@ -0,0 +1 @@ +__author__ = 'Xyene' \ No newline at end of file diff --git a/cube2sphere/blender_init.py b/cube2sphere/blender_init.py new file mode 100644 index 0000000..6999cc9 --- /dev/null +++ b/cube2sphere/blender_init.py @@ -0,0 +1,18 @@ +__author__ = 'Xyene' + +import bpy +import sys +import math + + +bpy.context.scene.cycles.resolution_x = int(sys.argv[-5]) +bpy.context.scene.cycles.resolution_y = int(sys.argv[-4]) + +for i, name in enumerate(['bottom', 'top', 'left', 'right', 'back', 'front']): + bpy.data.images[name].filepath = "%s" % sys.argv[-6 - i] + +camera = bpy.data.objects["Camera"] +camera.rotation_mode = 'XYZ' +camera.rotation_euler = (math.pi / 2 + float(sys.argv[-3]), float(sys.argv[-2]), float(sys.argv[-1])) + +bpy.ops.render.render(animation=True) \ No newline at end of file diff --git a/cube2sphere/cube2sphere.py b/cube2sphere/cube2sphere.py new file mode 100644 index 0000000..987a1dc --- /dev/null +++ b/cube2sphere/cube2sphere.py @@ -0,0 +1,75 @@ +#!/usr/bin/env python + +__author__ = 'Xyene' + +import argparse +import os +import sys +import subprocess +import math +from version import __version__ + + +def main(): + _parser = argparse.ArgumentParser(prog='cube2sphere', description=''' + Maps 6 cube (cubemap, skybox) faces into an equirectangular (cylindrical projection, skysphere) map. + ''') + for f in ['front', 'back', 'right', 'left', 'top', 'bottom']: + _parser.add_argument(f, type=str, metavar='<%s>' % f, help='source %s cube face filename' % f) + _parser.add_argument('-v', '--version', action='version', version=__version__) + _parser.add_argument('-r', '--resolution', type=int, nargs=2, default=[1024, 512], metavar=('', ''), + help='resolution for rendered map (defaults to 1024x512)') + _parser.add_argument('-R', '--rotation', type=int, nargs=3, default=[0, 0, 0], metavar=('', '', ''), + help="rotation in degrees to apply before rendering map (z is up)") + _parser.add_argument('-o', '--output', type=str, default='out', metavar='', + help='filename for rendered map (defaults to "out")') + _parser.add_argument('-f', '--format', type=str, default='TGA', metavar='', + help='format to use when saving map, i.e. "PNG" or "TGA"') + _parser.add_argument('-b', '--blender-path', type=str, default='blender', metavar='', + help='filename of the Blender executable (defaults to "blender")') + _parser.add_argument('-t', '--threads', type=int, default=None, metavar='', + help='number of threads to use when rendering (1-64)') + _parser.add_argument('-V', '--verbose', action='store_true', + help='enable verbose logging') + _args = _parser.parse_args() + + rotations = map(lambda x: math.radians(x), _args.rotation) + + if _args.threads and _args.threads not in range(1, 65): + _parser.print_usage() + print('cube2sphere: error: too many threads specified (range is 1-64)') + sys.exit(1) + + output = _args.output + output = output if os.path.isabs(output) else os.path.join(os.getcwd(), output) + + out = open(os.devnull, 'w') if not _args.verbose else None + + faces = [_args.front, _args.back, _args.right, _args.left, _args.top, _args.bottom] + for i in range(len(faces)): + face = faces[i] + face = faces if os.path.isabs(face) else os.path.join(os.getcwd(), face) + faces[i] = face + + try: + process = subprocess.Popen( + [_args.blender_path, '-E', 'CYCLES', '--background', '-noaudio', + '-b', os.path.join(os.path.dirname(os.path.realpath(__file__)), 'projector.blend'), + '-o', output, '-F', _args.format, '-x', '1', + '-P', os.path.join(os.path.dirname(os.path.realpath(__file__)), 'blender_init.py')] + + (['-t', str(_args.threads)] if _args.threads else []) + + ['--', faces[0], faces[1], faces[2], faces[3], faces[4], faces[5], + str(_args.resolution[0]), str(_args.resolution[1]), + str(rotations[0]), str(rotations[1]), str(rotations[2])], + stderr=out, stdout=out) + except: + print('error spawning blender (%s) executable' % _args.blender_path) + import traceback + + traceback.print_exc() + sys.exit(1) + else: + process.wait() + if process.returncode: + print('blender exited with error code %d' % process.returncode) + sys.exit(process.returncode) diff --git a/cube2sphere/projector.blend b/cube2sphere/projector.blend new file mode 100644 index 0000000..073c824 Binary files /dev/null and b/cube2sphere/projector.blend differ diff --git a/cube2sphere/version.py b/cube2sphere/version.py new file mode 100644 index 0000000..0cc98c4 --- /dev/null +++ b/cube2sphere/version.py @@ -0,0 +1,2 @@ +__author__ = 'Xyene' +__version__ = '0.1.7' \ No newline at end of file diff --git a/ez_setup.py b/ez_setup.py new file mode 100644 index 0000000..9f932db --- /dev/null +++ b/ez_setup.py @@ -0,0 +1,278 @@ +#!python +"""Bootstrap setuptools installation + +If you want to use setuptools in your package's setup.py, just include this +file in the same directory with it, and add this to the top of your setup.py:: + + from ez_setup import use_setuptools + use_setuptools() + +If you want to require a specific version of setuptools, set a download +mirror, or use an alternate download directory, you can do so by supplying +the appropriate options to ``use_setuptools()``. + +This file can also be run as a script to install or upgrade setuptools. +""" +import sys +DEFAULT_VERSION = "0.6c11" +DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3] + +md5_data = { + 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca', + 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb', + 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b', + 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a', + 'setuptools-0.6b3-py2.3.egg': 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'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277', + 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa', + 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e', + 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e', + 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f', + 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2', + 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc', + 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167', + 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64', + 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d', + 'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20', + 'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab', + 'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53', + 'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2', + 'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e', + 'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372', + 'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902', + 'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de', + 'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b', + 'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03', + 'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a', + 'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6', + 'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a', +} + +import sys, os +try: from hashlib import md5 +except ImportError: from md5 import md5 + +def _validate_md5(egg_name, data): + if egg_name in md5_data: + digest = md5(data).hexdigest() + if digest != md5_data[egg_name]: + print >>sys.stderr, ( + "md5 validation of %s failed! (Possible download problem?)" + % egg_name + ) + sys.exit(2) + return data + +def use_setuptools( + version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, + download_delay=15 +): + """Automatically find/download setuptools and make it available on sys.path + + `version` should be a valid setuptools version number that is available + as an egg for download under the `download_base` URL (which should end with + a '/'). `to_dir` is the directory where setuptools will be downloaded, if + it is not already available. If `download_delay` is specified, it should + be the number of seconds that will be paused before initiating a download, + should one be required. If an older version of setuptools is installed, + this routine will print a message to ``sys.stderr`` and raise SystemExit in + an attempt to abort the calling script. + """ + was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules + def do_download(): + egg = download_setuptools(version, download_base, to_dir, download_delay) + sys.path.insert(0, egg) + import setuptools; setuptools.bootstrap_install_from = egg + try: + import pkg_resources + except ImportError: + return do_download() + try: + pkg_resources.require("setuptools>="+version); return + except pkg_resources.VersionConflict, e: + if was_imported: + print >>sys.stderr, ( + "The required version of setuptools (>=%s) is not available, and\n" + "can't be installed while this script is running. Please install\n" + " a more recent version first, using 'easy_install -U setuptools'." + "\n\n(Currently using %r)" + ) % (version, e.args[0]) + sys.exit(2) + except pkg_resources.DistributionNotFound: + pass + + del pkg_resources, sys.modules['pkg_resources'] # reload ok + return do_download() + +def download_setuptools( + version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, + delay = 15 +): + """Download setuptools from a specified location and return its filename + + `version` should be a valid setuptools version number that is available + as an egg for download under the `download_base` URL (which should end + with a '/'). `to_dir` is the directory where the egg will be downloaded. + `delay` is the number of seconds to pause before an actual download attempt. + """ + import urllib2, shutil + egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3]) + url = download_base + egg_name + saveto = os.path.join(to_dir, egg_name) + src = dst = None + if not os.path.exists(saveto): # Avoid repeated downloads + try: + from distutils import log + if delay: + log.warn(""" +--------------------------------------------------------------------------- +This script requires setuptools version %s to run (even to display +help). I will attempt to download it for you (from +%s), but +you may need to enable firewall access for this script first. +I will start the download in %d seconds. + +(Note: if this machine does not have network access, please obtain the file + + %s + +and place it in this directory before rerunning this script.) +---------------------------------------------------------------------------""", + version, download_base, delay, url + ); from time import sleep; sleep(delay) + log.warn("Downloading %s", url) + src = urllib2.urlopen(url) + # Read/write all in one block, so we don't create a corrupt file + # if the download is interrupted. + data = _validate_md5(egg_name, src.read()) + dst = open(saveto,"wb"); dst.write(data) + finally: + if src: src.close() + if dst: dst.close() + return os.path.realpath(saveto) + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +def main(argv, version=DEFAULT_VERSION): + """Install or upgrade setuptools and EasyInstall""" + try: + import setuptools + except ImportError: + egg = None + try: + egg = download_setuptools(version, delay=0) + sys.path.insert(0,egg) + from setuptools.command.easy_install import main + return main(list(argv)+[egg]) # we're done here + finally: + if egg and os.path.exists(egg): + os.unlink(egg) + else: + if setuptools.__version__ == '0.0.1': + print >>sys.stderr, ( + "You have an obsolete version of setuptools installed. Please\n" + "remove it from your system entirely before rerunning this script." + ) + sys.exit(2) + + req = "setuptools>="+version + import pkg_resources + try: + pkg_resources.require(req) + except pkg_resources.VersionConflict: + try: + from setuptools.command.easy_install import main + except ImportError: + from easy_install import main + main(list(argv)+[download_setuptools(delay=0)]) + sys.exit(0) # try to force an exit + else: + if argv: + from setuptools.command.easy_install import main + main(argv) + else: + print "Setuptools version",version,"or greater has been installed." + print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)' + +def update_md5(filenames): + """Update our built-in md5 registry""" + + import re + + for name in filenames: + base = os.path.basename(name) + f = open(name,'rb') + md5_data[base] = md5(f.read()).hexdigest() + f.close() + + data = [" %r: %r,\n" % it for it in md5_data.items()] + data.sort() + repl = "".join(data) + + import inspect + srcfile = inspect.getsourcefile(sys.modules[__name__]) + f = open(srcfile, 'rb'); src = f.read(); f.close() + + match = re.search("\nmd5_data = {\n([^}]+)}", src) + if not match: + print >>sys.stderr, "Internal error!" + sys.exit(2) + + src = src[:match.start(1)] + repl + src[match.end(1):] + f = open(srcfile,'w') + f.write(src) + f.close() + + +if __name__=='__main__': + if len(sys.argv)>2 and sys.argv[1]=='--md5update': + update_md5(sys.argv[2:]) + else: + main(sys.argv[1:]) \ No newline at end of file diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..541c89a --- /dev/null +++ b/setup.py @@ -0,0 +1,44 @@ +#!/usr/bin/env python + +__author__ = 'Xyene' +import ez_setup + +ez_setup.use_setuptools() +from setuptools import setup, find_packages +import os + +with open('README.rst') as file: + long_description = file.read() + +with open(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'cube2sphere', 'version.py')) as version: + exec (version.read()) + +setup(name='cube2sphere', + version=__version__, + description='Utility to map 6 cube (cubemap, skybox) faces into an equirectangular (cylindrical projection, skysphere) map', + long_description=long_description, + author='Tudor Brindus', + author_email='tbrindus@gmail.com', + url='http://github.com/Xyene/cube2sphere', + packages=find_packages(), + package_data={ + "cube2sphere": ["*.blend"], + }, + entry_points={ + 'console_scripts': ['cube2sphere=cube2sphere.cube2sphere:main'], + }, + classifiers=[ + 'Development Status :: 3 - Alpha', + 'Environment :: Console', + 'Intended Audience :: Developers', + 'Programming Language :: Python :: 2.7', + 'Programming Language :: Python :: 3', + 'Programming Language :: Python :: 3.2', + 'Programming Language :: Python :: 3.3', + 'Programming Language :: Python :: 3.4', + 'License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)', + 'Operating System :: OS Independent', + 'Programming Language :: Python', + 'Topic :: Artistic Software' + ], +) \ No newline at end of file