Hair dynamics with cloth simulation

- Hair dynamics have their own panel in particle settings with the settings from cloth panel that apply to hair.
- Basic internal friction force to quickly emulate self collisions and volume preservation. (Still very early code, but gives some idea of what's possible).
- Softbody simulation is no longer used for hair.
	* Old files with sb dynamics should just load the hair without dynamics so new dynamics can be applied.
	* Invasion of particles exceptions in sb code is finally over.
- Collisions with other objects are disabled for now and will be worked out in the future.

Other changes/fixes:
- Particle mode editing flag wasn't saved properly.
- Some old files with edited hair didn't load correctly.
- Disabled delete & specials menu in particle mode for non-hair editing.
- Fixed yet one more cloth & softbody pointcache update issue.
- Disconnect/connect hair now uses only the deformed mesh so it works correctly also for subsurfed emitters.
- Hair editing now updates correctly with a moving emitter.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_cloth_types.h b/source/blender/makesdna/DNA_cloth_types.h
index 33984582d7f..5cfecf7cc01 100644
--- a/source/blender/makesdna/DNA_cloth_types.h
+++ b/source/blender/makesdna/DNA_cloth_types.h
@@ -68,6 +68,7 @@ typedef struct ClothSimSettings
 	float	defgoal;
 	float	goalspring;
 	float	goalfrict;
+	float	velocity_smooth; /* smoothing of velocities for hair */
 	int 	stepsPerFrame;	/* Number of time steps per frame.		*/
 	int	flags;		/* flags, see CSIMSETT_FLAGS enum above.	*/
 	int	preroll;	/* How many frames of simulation to do before we start.	*/
@@ -78,7 +79,6 @@ typedef struct ClothSimSettings
 	short	vgroup_struct;  /* vertex group for scaling structural stiffness */
 	short	presets; /* used for presets on GUI */
  	short 	pad;
-	int		pad2;
 } ClothSimSettings;