YOGA - Yummy Optimizer for Gorgeous Assets

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.. figure:: https://github.com/wanadev/yoga/raw/master/logo.png :alt:

YOGA is a command-line tool and a library that can:

• convert and optimize images from various format to JPEG, PNG and WEBP,
• convert and optimize 3D models from various formats to glTF and GLB_.

Images are opened using Pillow_ and optimized using Guetzli_ and MozJPEG_ for JPEGs, Zopflipng_ for PNGs and libwebp_ for WEBPs.

3D Models are converted and optimized using assimp_. If models contain or reference images, they are processed by YOGA's image optimizer.

EXAMPLE: Converting and optimizing an image from CLI::

yoga  image  input.png  output.png
yoga  image  --output-format=jpeg  --jpeg-quality=84  input.png  output.jpg
yoga  image  --help

EXAMPLE: Converting and optimizing a 3D model from CLI::

yoga  model  input.fbx  output.glb
yoga  model  --no-graph-optimization  --no-meshes-optimization  --image-output-format=jpeg  --image-jpeg-quality=84  input.fbx  output.glb
yoga  model  --help

.. _glTF and GLB: https://www.khronos.org/gltf/ .. _Pillow: https://github.com/python-pillow/Pillow .. _Guetzli: https://github.com/google/guetzli .. _MozJPEG: https://github.com/mozilla/mozjpeg .. _Zopflipng: https://github.com/google/zopfli .. _libwebp: https://chromium.googlesource.com/webm/libwebp/ .. _assimp: https://github.com/assimp/assimp

Install

• See the install section of the documentation <https://wanadev.github.io/yoga/install.html>_

Documentation

• Command Line Interface (CLI) <https://wanadev.github.io/yoga/cli/index.html>_
• Python API <https://wanadev.github.io/yoga/python/index.html>_
• Contributing <https://wanadev.github.io/yoga/contributing.html>_

Changelog

• [NEXT] (changes on master that have not been released yet):

  • Nothing yet ;)

• v1.3.1-1:

  • This version has no code change from the v1.3.1. It is only an update of the distribution :

    • A brand new standalone version was build for Linux
    • The Windows standalone distribution was updated (changes in documentation)

  • dist: Added scripts to build a standalone binary version of YOGA on Linux

• v1.3.1:

  • chore(sdist): Fixed included files in sdist package (@flozz)

• v1.3.0:

  • feat(assimp): Updated assimp to v5.3.1 (fixed build on GCC >= 13) (@flozz)
  • chore: Removed a script that is no more needed (@flozz)
  • docs: Updated contributing documentation (libraries, supported Python version, assimp update) (@flozz)

• v1.2.3:

  • Code quality: more robust type comparison (@flozz)
  • Code quality: cleanup some Python 2.7 specific code (@flozz)
  • Added Python 3.12 support (@flozz)
  • Removed Python 3.7 support (@flozz)

• v1.2.2:

  • Updated the code to not use deprecated constants on newer Pillow versions
  • Various typo fixed (@kianmeng, #45)
  • Added Python 3.11 support

• v1.2.1:

  • No change: fix an upload error on PYPI

• v1.2.0:

  • Add color quantization options (based on libimagequant)
  • arm64 and universal2 wheels for macOS
  • x86 and x68_64 wheels for musl-based Linux distro (Alpine,...)
  • MAINTAINERS: New dependency: imagequant <https://github.com/wanadev/imagequant-python>_

• v1.1.2:

  • Add flag to CFFI builder to fix MacOS build

• v1.1.1 (not published):

  • JPEG: ignore invalid values for the orientation tag (#38)
  • Python 3.10 support and wheels

• v1.1.0:

  • JPEG Optimization:

    • Honor the JPEG orientation EXIF tag
    • JPEG optimization has been improved by using some optimizations from MozJPEG after the Guetzli encoding (from 2.4 % to 7.3 % of additional size reduction)

  • PNG Optimization:

    • YOGA can no more output a PNG larger than the input one when performing a PNG to PNG optimization

  • CLI:

    • Allow to cancel an optimization using Ctrl+C (NOTE: may not work on Windows)
    • Add a --version option to get YOGA's version
    • Improve yoga --help usage

  • Python versions:

    • Python 2.7 support dropped

  • NOTE for packagers:

    • new dependency to mozjpeg-lossless-optimization <https://github.com/wanadev/mozjpeg-lossless-optimization>_

• v1.0.0:

  • WEBP (lossy and lossless) images supported as output format
  • PNG default optimization preset changed to a 10× faster preset (old preset still available with --png-slow-optimization flag)
  • New model flag --no-fix-infacing-normals to disable Assimp's "fix infacing normals" postprocess (#32, #33)
  • Show CLI usage when no parameter given
  • Developer documentation improved (#31)
  • ASSIMP library updated
  • WARNING: This is the last version to actively support Python 2.7!

• v0.11.1:

  • Automated workflow for deploying the PyPI packages
  • Wheel are now distributed on PyPI

• v0.11.0:

  • Allows to build YOGA on Windows
  • Scripts and workflow to build Windows standalone versions

• v0.10.2:

  • Updates assimp and python libraries

• v0.10.1:

  • Fixes an issue that occurs when output file does not already exist

• v0.10.0:

  • Prevent overwriting of the output file when an error occurs (#17)
  • Unicode path support (#16)

• v0.10.0b1:

  • Verbose and quiet modes,
  • Allows to pass textures from memory instead of looking on the filesystem,
  • Allows to pass a fallback texture instead of raising an error.

• v0.9.1b1:

  • Automatic selection of the output format (png or jpeg),
  • Prevent duplication of textures that are shared between materials,
  • Fixes Windows paths of textures.

• v0.9.0b1: First release (only GLB output for models, no image auto output format)

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