Blender Git Loki

Improved child hair curling for interpolated child particles.

The curl radius for children in interpolated mode was calculated using
the total offset from the parent particle. This leads to very large
radii when the distance is large due to sparse parents. Such behavior is
also very unrealistic because the curl radius is mostly constant and
defined by the material properties.

All the child hairs are roughly parallel by default. To simulate the
agglomeration of children into hair wisps the "flatness" parameter is
now used to clump them together.

Highlighting for manipulator widget.

This should use an "active" system, similar to buttons to detect if last
widget has changed and act accordingly. Currently, when the active
widget changes, there is no change in highlights.

Tidy up the widget API, only do 3d intersection on widgetmaps that
support it (determined during creation)

Widget API:

Code that handles 3D object intersection via GPU selection. We might
want to use raycasting here, but leaving that for when we have it.

Manipulator code now uses this API to do intersection testing

Refactoring of manipulator code to use selection evaluation and codes
that can be shared with other widgets.

Cloth solver data for edit mode is unused, removed it.

Merge branch 'hair_immediate_fixes' into gooseberry

Merge branch 'master' into hair_immediate_fixes

WIP code reshuffling for widgets

Manipulator now uses the widget system (no operators used).

Widgets use a similar notification system as operators. It might be
worth using WM_BREAK messages like the rest of the handlers. For now
this should do.

Move manipulator handler to the widget system.

Draw manipulator from widget callback (handling still done separately)

Merge branch 'master' into wiggly-widgets

Fix for scons files missing physics include folder.

Yet another attempt to solve OSX issues, restore sequence sounds too, or
sounds get added to two sequence and file descriptors leak

Added separate damping for bending springs.

The bend damping factor was hardcoded to the same value as the stiffness.
Now it has its own factor in the settings and button in hair dynamics.

Minor corrections to the types

New data types for sequencer.

Uses struct hierarchies to reduce the data used per strip.

Also changed sequence -> strip. Might be better to use NSequence for
editing as well.

Merge branch 'master' into terrible_consequencer

Set the length threshold for hair simulation to 10% again (from 1%).

With the default 5 substeps the simulation can otherwise still become
unstable. This is just a preliminary measure anyway until the length
variance can be fixed properly.