89 lines
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2.8 KiB
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89 lines
No EOL
2.8 KiB
ReStructuredText
cube2sphere
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===========
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``cube2sphere`` is a Python script to map an equirectangular
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(cylindrical projection; skysphere) map into 6 cube (cubemap; skybox)
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faces.
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Usage
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=====
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::
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$ cube2sphere -h
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usage: cube2sphere [-h] [-v] [-r <width> <height>] [-R <rx> <ry> <rz>]
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[-o <path>] [-f <name>] [-b <path>] [-t <count>] [-V]
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<front> <back> <right> <left> <top> <bottom>
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Maps 6 cube (cubemap, skybox) faces into an equirectangular (cylindrical
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projection, skysphere) map.
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positional arguments:
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<front> source front cube face filename
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<back> source back cube face filename
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<right> source right cube face filename
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<left> source left cube face filename
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<top> source top cube face filename
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<bottom> source bottom cube face filename
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optional arguments:
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-h, --help show this help message and exit
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-v, --version show program's version number and exit
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-r <width> <height>, --resolution <width> <height>
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resolution for rendered map (defaults to 1024x512)
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-R <rx> <ry> <rz>, --rotation <rx> <ry> <rz>
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rotation in degrees to apply before rendering map (z
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is up)
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-o <path>, --output <path>
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filename for rendered map (defaults to "out")
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-f <name>, --format <name>
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format to use when saving map, i.e. "PNG" or "TGA"
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-b <path>, --blender-path <path>
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filename of the Blender executable (defaults to
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"blender")
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-t <count>, --threads <count>
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number of threads to use when rendering (1-64)
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-V, --verbose enable verbose logging
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Supported output formats depend on the Blender installation, but will
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generally include TGA, IRIS, JPEG, MOVIE, IRIZ, RAWTGA, AVIRAW, AVIJPEG, PNG,
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BMP, and FRAMESERVER.
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``cube2sphere`` can be run in a headless environment (e.g., a
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server).
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Examples
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========
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If we wanted to stitch 6 cube faces named ``${face}.jpg`` into a 2048x1024 TGA equirectangular map, we could use the following command:
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::
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$ cube2sphere front.jpg back.jpg right.jpg left.jpg top.jpg bottom.jpg -r 2048 1024 -fTGA -ostitched
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This would generate ``stitched.tga`` in the working directory.
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Installation
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============
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``cube2sphere`` can be easily installed with ``pip``. It depends on
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Blender being installed on the system.
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Linux
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-----
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::
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$ apt-get install blender
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$ pip install cube2sphere
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Windows
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-------
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Install `Blender`_, and add ``blender.exe`` to ``PATH``. Finally,
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::
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pip install cube2sphere
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.. _Blender: https://www.blender.org/ |