mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-12 03:50:09 +00:00
166 lines
6.8 KiB
ReStructuredText
166 lines
6.8 KiB
ReStructuredText
..
|
|
Copyright 2013 Pixar
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "Apache License")
|
|
with the following modification; you may not use this file except in
|
|
compliance with the Apache License and the following modification to it:
|
|
Section 6. Trademarks. is deleted and replaced with:
|
|
|
|
6. Trademarks. This License does not grant permission to use the trade
|
|
names, trademarks, service marks, or product names of the Licensor
|
|
and its affiliates, except as required to comply with Section 4(c) of
|
|
the License and to reproduce the content of the NOTICE file.
|
|
|
|
You may obtain a copy of the Apache License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the Apache License with the above modification is
|
|
distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
KIND, either express or implied. See the Apache License for the specific
|
|
language governing permissions and limitations under the Apache License.
|
|
|
|
|
|
Getting Started
|
|
---------------
|
|
|
|
.. contents::
|
|
:local:
|
|
:backlinks: none
|
|
|
|
|
|
Downloading the code
|
|
====================
|
|
|
|
The code is hosted on a Github public repository. Download and setup information
|
|
for Git tools can be found `here <https://help.github.com/articles/set-up-git>`__.
|
|
|
|
You can access the OpenSubdiv Git repository at https://github.com/PixarAnimationStudios/OpenSubdiv
|
|
|
|
From there, there are several ways of downloading the OpenSubdiv source code.
|
|
|
|
- Zip archive : downloaded from `here <https://github.com/PixarAnimationStudios/OpenSubdiv/archive/master.zip>`__
|
|
|
|
- Using a GUI client : you can find a list `here <http://git-scm.com/downloads/guis>`__
|
|
Please refer to the documentation of your preferred application.
|
|
|
|
- From the GitShell, Cygwin or the CLI : assuming that you have the Git tools
|
|
installed, you can clone the OpenSubdiv repository directly with the
|
|
following command:
|
|
|
|
.. code:: c++
|
|
|
|
git clone https://github.com/PixarAnimationStudios/OpenSubdiv.git
|
|
|
|
|
|
|
|
These methods only pull static archives, which is are not under the version
|
|
control system and therefore cannot pull updates or push changes back. If you
|
|
intend on contributing features or fixes to the main trunk of the code, you will
|
|
need to create a free Github account and clone a fork of the OpenSubdiv repository.
|
|
|
|
Submissions to the main code trunk can be sent using Git's pull-request mechanisms.
|
|
Please note that we are using the git flow tools so all changes should be made to
|
|
our *dev* branch. Before we can accept submissions however, we will need a signed
|
|
`Contributor's License Agreement <intro.html#contributing>`__.
|
|
|
|
----
|
|
|
|
Branches & Git Flow
|
|
===================
|
|
|
|
Since version 1.1.0, OpenSubdiv has adopted the `Git Flow
|
|
<http://nvie.com/posts/a-successful-git-branching-model/>`__ branching model .
|
|
|
|
Our active development branch is named *dev* : all new features and bug fixes should
|
|
be submitted to this branch. The changes submitted to the dev branch are periodically
|
|
patched to the 'master' branch as new versions are released.
|
|
|
|
.. image:: images/git_flow.png
|
|
:align: center
|
|
:target: images/git_flow.png
|
|
|
|
|
|
Checking out branches
|
|
_____________________
|
|
|
|
The Git Flow `tools <https://github.com/nvie/gitflow>`__ are not a requisite for
|
|
working with the OpenSubdiv code base, but new work should always be performed in
|
|
the *dev* branch, or dedicated feature-branches. By default, a cloned repository
|
|
will be pointing to the 'master' branch. You can switch to the *dev* branch using
|
|
the following command:
|
|
|
|
.. code:: c++
|
|
|
|
git checkout dev
|
|
|
|
You can check that the branch has now been switched simply with:
|
|
|
|
.. code:: c++
|
|
|
|
git branch
|
|
|
|
Which should return:
|
|
|
|
.. code:: c++
|
|
|
|
* dev
|
|
master
|
|
|
|
|
|
API Versions
|
|
____________
|
|
|
|
OpenSubdiv maintains an internal API versioning system. The version number can be
|
|
read from the file `./opensubdiv/version.h <https://github.com/PixarAnimationStudios/OpenSubdiv/blob/master/opensubdiv/version.h>`__.
|
|
Following the Git-Flow pattern, our releases are indexed using Git's tagging
|
|
system.
|
|
|
|
List of the existing tags:
|
|
|
|
.. code:: c++
|
|
|
|
git tag --list
|
|
|
|
Checking out version 1.2.0:
|
|
|
|
.. code:: c++
|
|
|
|
git checkout v1_2_0
|
|
|
|
Making Changes
|
|
______________
|
|
|
|
Direct push access to the OpenSubdiv master repository is currently limited to a
|
|
small internal development team. External code should be submitted by sending Git
|
|
`pull-requests <https://help.github.com/articles/using-pull-requests>`__ from
|
|
forks of our *dev* branch.
|
|
|
|
----
|
|
|
|
Code Overview
|
|
=============
|
|
|
|
The OpenSubdiv code base contains the following main areas:
|
|
|
|
+----------------------+---------------------------------------------------------------------------------------+
|
|
| Directory | Contents |
|
|
+======================+=======================================================================================+
|
|
| **./opensubdiv/** | The main subdivision APIs : Sdc, Vtr, Far and Osd. |
|
|
+----------------------+---------------------------------------------------------------------------------------+
|
|
| **./examples/** | A small collection of standalone applications that illustrate how to deploy the +
|
|
| | various features and optimizations of the OpenSubdiv APIs. The GL-based examples |
|
|
| | rely on the cross-platform GLFW API for interactive window management, while the |
|
|
| | DirectX ones are OS-native. |
|
|
+----------------------+---------------------------------------------------------------------------------------+
|
|
| **./tutorials/** | Tutorials showing how to manipulate the APIs of OpenSubdiv. |
|
|
+----------------------+---------------------------------------------------------------------------------------+
|
|
| **./documentation/** | The reStructuredText source files along with python scripts that generate the HTML |
|
|
| | documentation site. |
|
|
+----------------------+---------------------------------------------------------------------------------------+
|
|
| **./regression/** | Standalone regression tests and baseline data to help maintain the integrity of |
|
|
| | our APIs. If GPU SDKs are detected, some tests will attempt to run computations |
|
|
| | on those GPUs. |
|
|
+----------------------+---------------------------------------------------------------------------------------+
|