Campbell Barton d885b1141c DRW: optimize mesh data extraction
Change extraction callbacks to take index ranges instead of calling them
for each mesh element (poly, loop, vert & edge).

This gives a minor overall performance gain in my tests, ~5% on average.

Details:

- Use typed parameter structs and macros for looping over elements.
  Without this, changes to these callbacks is time consuming as changes
  need to be made in many places.
- Avoid iterating over polygon-loops when iterating over polygons
  is sufficient.
- Simplify logic to access adjacent loops for faster line extraction.
- Rename 'loop' iterators to 'poly' (as they take polygon ranges)
  the iterator callbacks can operator on either polygon or loop data.
- Use term 'last' for the last index (inclusive),
  use 'end' when this value (not inclusive).
2020-07-01 14:56:39 +10:00
2020-07-01 13:12:24 +10:00
2020-07-01 13:11:39 +10:00
2020-07-01 14:56:39 +10:00
2020-06-30 18:32:38 +02:00
2010-10-13 14:44:22 +00:00
2019-04-13 14:45:51 +02:00

.. Keep this document short & concise,
   linking to external resources instead of including content in-line.
   See 'release/text/readme.html' for the end user read-me.


Blender
=======

Blender is the free and open source 3D creation suite.
It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing,
motion tracking and video editing.

.. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg
   :scale: 50 %
   :align: center


Project Pages
-------------

- `Main Website <http://www.blender.org>`__
- `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__
- `User Community <https://www.blender.org/community/>`__

Development
-----------

- `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__
- `Code Review & Bug Tracker <https://developer.blender.org>`__
- `Developer Forum <https://devtalk.blender.org>`__
- `Developer Documentation <https://wiki.blender.org>`__


License
-------

Blender as a whole is licensed under the GNU Public License, Version 3.
Individual files may have a different, but compatible license.

See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.
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