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pycollada Changelog

0.4 (2012-07-31)

Backwards Compatibility Notes

  • Python 2.5 is no longer supported. Supported versions are now 2.6, 2.7 and 3.2.

New Features

  • Added support for reading the opaque attribute from <transparent> tag.
  • Normals and texture coordinate indices are now available in shapes (Triangle and Polygon).
  • Library is now compatible with python's built-in ElementTree API instead of requiring lxml. lxml is still recommended.
  • Added support for Python 3.2. Supported versions are now 2.6, 2.7 and 3.2.
  • Added support for index_of_refraction in <effect>.
  • Added optional parameter to Collada that does XML schema validation when saving.
  • Automatically corrects broken files that don't have correct xfov, yfov, and aspect ratio in cameras.

Bug Fixes

  • Fix the default value for transparency in Effect. Now correctly defaults to 1.0 when opaque mode is A_ONE, and 0.0 when opaque mode is RGB_ZERO.
  • Fixed bug where BoundPolylist was not returning the correct length value.
  • Removed support for RGB from Effect since it's not valid in the spec. If an RGB is given, a fourth A channel is automatically added as 1.0.
  • Made instance_geometry not write an empty bind_material if it's empty since it breaks validation.
  • Made saving strip out empty <library_*> tags since it breaks validation.

0.3 (2011-08-31)

Backwards Compatibility Notes

  • If using the old Camera object, this has been changed to an abstract class with types for PerspectiveCamera and OrthographicCamera
  • If using the old Collada.assetInfo dictionary to read asset information, this has been changed to an object. See documentation for more information.

New Features

  • Added support for bump maps inside the extra tag of an effect
  • Added texbinormal and textangent to triangle sets
  • Added a method to generate texture tangents and binormals
  • Added detection for double_sided
  • Added an optional parameter to specify what filename inside an archive to use when loading from zip
  • Added support for loading multiple sets of library_* nodes
  • Refactored asset information into a separate module. Fixed #12
  • Refactored Camera into PerspectiveCamera and OrthographicCamera, inheriting from Camera

Bug Fixes

  • Changed Collada IndexedLists attributes to be properties. Fixed Issue #14
  • Updated scene to use a local scope when nodes are instantiated inside a scene
  • Changed parsing to raise DaeMalformedError when an lxml parser exception is thrown
  • Fixed bug when loading an <image> tag local to an <effect> not showing up in Collada.images
  • Fixed bug when loading an empty <polygons>
  • Fixed bug in if statement when loading morph controllers
  • Fixed bug when triangulating a length-0 polylist
  • Updated install instructions for OS X and Ubuntu problems
  • Fixed bugs in IndexedList from Issue #13
  • Fixed a bug where using the same map twice in an effect would cause incorrrect output
  • Changed geometry export to delete any sources in the vertices tag that no longer exist
  • Changed library output to not output emtpy library nodes so validator doesn't complain
  • Add same checks in scene loading that was done in library_nodes loading so that if nodes are not found yet while loading, it will keep trying
  • Changed the way library_nodes is loaded so that if a referenced node from instance_node is not loaded yet, it will keep trying
  • Fixed bug where a triangles xml node would try to set an attribute to None
  • Fixed bug in handling joints that influence 0 vertices

0.2.2 (2011-05-03)

  • Changed the way instance_node is handled to actually maintain the mapping so it's not lost when saving
  • Added setdata function to CImage and made Effect compare only image path
  • Fixed a bug when rewriting geometry sources
  • Change primitive sources to point to the <vertices> tag when possible since other importers don't like not having a <vertices> tag
  • Export source data with only 7 decimal precision for better file size
  • Prevent NaN from being the result of a normalize_v3 call
  • Fixed bug where effect was not correctly reading all four color values
  • Fixed a bug where a triangleset would not create its xml node when generated from a polylist
  • Big speed increases for converting numpy data to strings
  • Moved getInputs function to Primitive
  • Added functions to triangleset to generate normals and get an input list
  • Fixed bug in saving a scene node if there was no id
  • Fixed some bugs/optimizations with saving
  • Added function to test if an Effect is almost equal to another Effect
  • Adding dynamic dependencies to setup.py

0.2.1 (2011-04-15)

  • Fixed bug with saving existing files that didn't have some library_ tags.

0.2 (2011-04-15)

  • Many bugfixes
  • polylist support
  • polygons support without holes
  • lines support
  • blinn and constant material support
  • More effect attributes
  • Better support for auxiliary texture files
  • Lights (directional, ambient, point, spot)
  • lookat transform
  • Experimental controller support (skin, morph)
  • polygons/polylist can be triangulated
  • Automatic computation of per-vertex normals

0.1 (2009-02-08)

  • Initial release
  • Triangles geometry
  • Reads vertices and normals
  • Multiple texture coordinate channels
  • Phong and Lambert Materials
  • Texture support using PIL
  • Scene suppport for geometry, material and camera instances
  • Transforms (matrix, rotate, scale, translate)
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