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diff --git a/libs/assimp/port/PyAssimp/README.rst b/libs/assimp/port/PyAssimp/README.rst new file mode 100644 index 0000000..03b7968 --- /dev/null +++ b/libs/assimp/port/PyAssimp/README.rst @@ -0,0 +1,93 @@ +PyAssimp: Python bindings for libassimp +======================================= + +A simple Python wrapper for Assimp using ``ctypes`` to access the +library. Requires Python >= 2.6. + +Python 3 support is mostly here, but not well tested. + +Note that pyassimp is not complete. Many ASSIMP features are missing. + +USAGE +----- + +Complete example: 3D viewer +~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +``pyassimp`` comes with a simple 3D viewer that shows how to load and +display a 3D model using a shader-based OpenGL pipeline. + +.. figure:: 3d_viewer_screenshot.png + :alt: Screenshot + + Screenshot + +To use it, from within ``/port/PyAssimp``: + +:: + + $ cd scripts + $ python ./3D-viewer <path to your model> + +You can use this code as starting point in your applications. + +Writing your own code +~~~~~~~~~~~~~~~~~~~~~ + +To get started with ``pyassimp``, examine the simpler ``sample.py`` +script in ``scripts/``, which illustrates the basic usage. All Assimp +data structures are wrapped using ``ctypes``. All the data+length fields +in Assimp's data structures (such as ``aiMesh::mNumVertices``, +``aiMesh::mVertices``) are replaced by simple python lists, so you can +call ``len()`` on them to get their respective size and access members +using ``[]``. + +For example, to load a file named ``hello.3ds`` and print the first +vertex of the first mesh, you would do (proper error handling +substituted by assertions ...): + +.. code:: python + + + from pyassimp import load + with load('hello.3ds') as scene: + + assert len(scene.meshes) + mesh = scene.meshes[0] + + assert len(mesh.vertices) + print(mesh.vertices[0]) + + +Another example to list the 'top nodes' in a scene: + +.. code:: python + + + from pyassimp import load + with load('hello.3ds') as scene: + + for c in scene.rootnode.children: + print(str(c)) + + +INSTALL +------- + +Install ``pyassimp`` by running: + +:: + + $ python setup.py install + +PyAssimp requires a assimp dynamic library (``DLL`` on windows, ``.so`` +on linux, ``.dynlib`` on macOS) in order to work. The default search +directories are: + +- the current directory +- on linux additionally: ``/usr/lib``, ``/usr/local/lib``, + ``/usr/lib/x86_64-linux-gnu`` + +To build that library, refer to the Assimp master ``INSTALL`` +instructions. To look in more places, edit ``./pyassimp/helper.py``. +There's an ``additional_dirs`` list waiting for your entries. |