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Change log

fresnel releases follow semantic versioning.

0.13.7 (2024-10-29)

Added

  • Support Python 3.13.

Fixed

  • Edge case in ray-convex polyhedron intersection test.

Changed

  • Improve the build instructions.

0.13.6 (2024-05-31)

Added

  • Support Numpy 2.0.

Changed

  • Provide support via GitHub discussions.
  • Revise installation documentation.
  • Add copy button to documentation code examples.
  • Enable arrow key navigation in documentation.

Removed

  • Support for Python 3.8.

0.13.5 (2023-02-22)

Added

  • Support Python 3.11.
  • Support for Embree 4.x.

Removed

  • Support for Embree 3.x.

v0.13.4 (2021-11-17)

Added

  • Support Python 3.10.
  • Support clang 13.

v0.13.3 (2021-06-07)

Added

  • Support Windows.

v0.13.2 (2021-05-11)

Added

  • Support macos-arm64.

v0.13.1 (2021-03-11)

Fixed

  • Add missing version module

v0.13.0 (2021-03-11)

Added

  • Perspective camera.
  • Depth of field effect.

Changed

  • Reduce latency in interact.SceneView while rotating the view.
  • Improve user experience with mouse rotations in interact.SceneView.
  • [breaking] - Moved camera.orthographic to camera.Orthographic.
  • [breaking] - Moved camera.fit to camera.Orthographic.fit.

Removed

  • [breaking] - Removed "auto" camera in Scene. Use camera.Orthographic.fit

v0.12.0 (2020-02-27)

Added

  • preview and tracer.Preview accept a boolean flag anti_alias to enable or disable anti-aliasing.

Changed

  • preview and tracer.Preview enable anti-alisasing by default.
  • Python, Cython, and C code must follow strict style guidelines.
  • Renamed util.array to util.Array
  • Renamed util.image_array to util.ImageArray
  • Converted interact.SceneView.setScene to a property: scene

Removed

  • preview and tracer.Preview no longer accept the aa_level argument - use anti_alias.

v0.11.0 (2019-10-30)

Added

  • Added box geometry convenience class Box.

Removed

  • Support for Python 3.5.

Fixed

  • Compile on systems where libqhullcpp.a is missing or broken.
  • Find Embree headers when they are not in the same path as TBB.

v0.10.1 (2019-09-05)

Fixed

  • Restore missing examples on readthedocs.

v0.10.0 (2019-08-19)

Changed

  • CMake >= 3.8 is required at build time.
  • pybind11 >= 2.2 is required at build time.
  • qhull >= 2015 is required.
  • install to the Python site-packages directory by default.
  • CI tests execute on Microsoft Azure Pipelines.

Fixed

  • Improved installation documentation.

v0.9.0 (2019-04-30)

  • Added support for linearizing colors of shape (4,).
  • Improve examples.

v0.8.0 (2019-03-05)

  • Documentation improvements.
  • Add geometry.Polygon: Simple and/or rounded polygons in the z=0 plane.
  • API breaking changes:
    • Remove: geometry.Prism

v0.7.1 (2019-02-05)

  • Fix conda-forge build on mac

v0.7.0 (2019-02-05)

  • Add util.convex_polyhedron_from_vertices: compute convex polyhedron plane origins and normals given a set of vertices
  • Improve documentation
  • Add interact.SceneView: pyside2 widget for interactively rendering scenes with path tracing
  • Add geometry.Mesh: Arbitrary triangular mesh geometry, instanced with N positions and orientations
  • fresnel development is now hosted on github: https://github.com/glotzerlab/fresnel/
  • Improve light.lightbox lighting setup
  • API breaking changes:
    • geometry.ConvexPolyhedron arguments changed. It now accepts polyhedron information as a dictionary.

v0.6.0 (2018-07-06)

  • Implement tracer.Path on the GPU.
  • Implement ConvexPolyhedron geometry on the GPU.
  • Improve path tracer performance with Russian roulette termination.
  • Compile warning-free.
  • Fix sphere intersection test bugs on the GPU.
  • tracer.Path now correctly starts sampling over when resized.
  • Wrap C++ code with pybind 2.2
  • Make documentation available on readthedocs: http://fresnel.readthedocs.io
  • Fresnel is now available on conda-forge: https://anaconda.org/conda-forge/fresnel
  • embree >= 3.0 is now required for CPU support
  • Improve documentation

v0.5.0 (2017-07-27)

  • Add new lighting setups
    • lightbox
    • cloudy
    • ring
  • Adjust brightness of lights in existing setups
  • Remove clearcoat material parameter
  • Add spec_trans material parameter
  • Add Path tracer to render scenes with indirect lighting, reflections, and transparency (CPU-only)
  • Add ConvexPolyhedron geometry (CPU-only, beta API, subject to change)
  • Add fresnel.preview function to easily generate Preview traced renders with one line
  • Add fresnel.pathtrace function to easily generate Path traced renders with one line
  • Add anti-aliasing (always on for the Path tracer, set aa_level > 0 to enable for Preview)
  • API breaking changes:
    • render no longer exists. Use preview or pathtrace.
    • tracer.Direct is now tracer.Preview.

CPU-only features will be implemented on the GPU in a future release.

v0.4.0 (2017-04-03)

  • Enforce requirement: Embree >= 2.10.0
  • Enforce requirement Pybind =1.8.1
  • Enforce requirement TBB >= 4.3
  • Rewrite camera API, add camera.fit to fit the scene
  • scenes default to an automatic fit camera
  • Implement area lights, add default lighting setups
  • Scene now supports up to 4 lights, specified in camera space
  • Implement Disney's principled BRDF
  • Tracer.histogram computes a histogram of the rendered image
  • Tracer.enable_highlight_warning highlights overexposed pixels with a given warning color
  • Device.available_modes lists the available execution modes
  • Device.available_gpus lists the available GPUs
  • Device can now be limited to n GPUs
  • API breaking changes:
    • camera.Orthographic is now camera.orthographic
    • Device now takes the argument n instead of limit
    • Scene no longer has a light_direction member

v0.3.0 (2017-03-09)

  • Suppress "cannot import name" messages
  • Support Nx3 and Nx4 inputs to color.linear

v0.2.0 (2017-03-03)

  • Parallel rendering on the CPU
  • Fix PTX file installation
  • Fix python 2.7 support
  • Unit tests
  • Fix bug in sphere rendering on GPU

v0.1.0 (2017-02-02)

  • Prototype API
  • Sphere geometry
  • Prism geometry
  • outline materials
  • diffuse materials
  • Direct tracer