Blender Git Loki

Fix small issue found in vertex color bake bug that caused the result to be
different each time, due to float precision issues. The camera matrix itself
should not be modified in render, just its copy.

File Menu, "Save startup file" no asks for save-over confirm.
Being a destructive action (and there are no versions saved as backup) it's an
OK convention to prevent accidents.

rigidbody: Make rigid bodies kinematic during transformation

This allows moving rigid bodies on frame > startframe.
Also rigid bodies can now be picked up and trown around while the
simulation is running.

Note: There is a small glitch with cancelling tansform during simulation
but it's tricky to get rid of.

TODO: Avoid static-static collision warnings

UI / Layout scripts:
* Code cleanup for new Rigid Body panels.
* Removed some unneeded split() calls.
* Remove redundant check for "ob.rigid_body_constraint" in the draw() function of the "Rigid Body Constraint" panel. The check is already made in the poll.

Code cleanup

* Removed unused block of code
* matrice -> matrix

Cycles:
* Small code cleanup of panel registering after Bullet merge.

Blender 2.66 Release Cycles:
* We enter BCon3 now, ongoing module work, stabilization of new features and fixes.

fix for blender quitting in X11 if you start blender with a tablet, unplug it, then open a new window.

scene panel for rigid body - remove operator isnt greyed out when rigidbody is disabled

Fix own stupid memory leak in new py i18n code (forgot to free temp keys when searching messages in GHash cache!).
Thanks to PerfectionCat for finding this.

code cleanup: dont use 'bpy.context' when 'context' is available

move rigidbody toggle into the header for scene and objects.

make bullet optional again

fix [#29950] Linked proxy armature object properties can't be edited

rigidbody: Add generic spring constraint

Behaves like the generic constraint but has optional spring on each axis.

TODO: Add option to set rest length.

Patch by Markus Kasten (markus111), thanks!

rigidbody: Add rigid body constraints

Constraints connect two rigid bodies.
Depending on which constraint is used different degrees of freedom
are limited, e.g. a hinge constraint only allows the objects to rotate
around a common axis.

Constraints are implemented as individual objects and bahave similar to
rigid bodies in terms of adding/removing/validating.

The position and orientation of the constraint object is the pivot point
of the constraint.

Constraints have their own group in the rigid body world.

To make connecting rigid bodies easier, there is a "Connect" operator that
creates an empty objects with a rigid body constraint connecting the selected
objects to active.

Currently the following constraints are implemented:
* Fixed
* Point
* Hinge
* Slider
* Piston
* Generic

Note: constraint limits aren't animatable yet).

rigidbody: Add "Copy Rigid Body Settings" and "Bake To Keyframes" operators

Based on a script by liero, thanks!

rigidbody: Add rigid body simulation

Add operators to add/remove rigid body world and objects.
Add UI scripts.

The rigid body simulation works on scene level and overrides the
position/orientation of rigid bodies when active.
It does not deform meshes or generate data so there is no modifier.

Usage:
* Add rigid body world in the scene tab
* Create a group
* Add objects to the group
* Assign group to the rigid body world
* Play animation
For convenience the rigid body tools operators in the tools panel of the 3d view
will add a world, group and add objects to the group automatically so you only have
to press one button to add/remove rigid bodies to the simulation.

Part of GSoC 2010 and 2012.
Authors: Joshua Leung (aligorith), Sergej Reich (sergof)

rigidbody: Add point cache support

Add read/write/interpolate functions.

In order to get rigid body point cache id from object it's now required to pass the
scene to BKE_ptcache_ids_from_object().

Rigid body cache is drawn in the orange color of the bullet logo.

rigidbody: Add force field support

Force fields work with rigid bodies just like they do with other simulations.

Increase min and max strength of force fields so they can influence heavy rigid
bodies.

TODO: Adjust force field strength based on the time step taken.

Part of GSoC 2010 and 2012.
Authors: Joshua Leung (aligorith), Sergej Reich (sergof)