blend2bam

• Add initial, experimental support for using EGG/YABEE instead of glTF/blendergltf (Blender 2.7x only)
  • This can be enabled using the new --pipeline flag to blend2bam
• Improve error output if Blender export fails
• Fix bad axis-conversion logic that was breaking parent-child transforms (#14)
• Add Blender 2.80 support (see gltf28 entry in the Pipeline table in the README to see what is and isn't supported)

• Pull in latest blendergltf and panda3d-gltf logic

  • Fixes broken skinnned meshes
  • Fixes animation play rate
  • Fixes bad rotations when rotations affect more than one axis

• Allow keeping the input extension (append .bam) instead of overriding it

Fix converting a single file when the destination is a directory

Fix bad destination paths when doing batch conversions involving sub-directories

• Add support for converting BLENDER_physics collision shapes into CollisionNodes and CollisionSolids.

NOTE: Using CollisionSolids is now the default, which is a change in behavior from using BulletShapes. Use the new --physics-engine=bullet option to return to the old behavior.

• Fix running on Windows
• Make conversion output quieter

• Added new options:
  • --material-mode: specify legacy or pbr material parameters (defaults to legacy)
  • --blender-dir: specify a path to a directory that contains the blender binary to use (defaults to '', which will try to find blender on the system PATH)
• Specifying multiple source files is now allowed. This works similar to specifying a directory for the source file, and a common path between the supplied source files is used as the source directory (can be overridden with --srcdir option).
• Various fixes from old BlenderPanda glTF export code not being compatible with panda3d-gltf (BlenderPanda was using older glTF to BAM conversion logic)

Initial release