Bendy Bones: Advanced B-Bones for Easier + Simple Rigging

This commit/patch/branch brings a bunch of powerful new options for B-Bones and
for working with B-Bones, making it easier for animators to create their own
rigs, using fewer bones (which also means hopefully lighter + faster rigs ;)
This functionality was first demoed by Daniel at BConf15

Some highlights from this patch include:
* You can now directly control the shape of B-Bones using a series of properties
  instead of being restricted to trying to indirectly control them through the
  neighbouring bones.  See the "Bendy Bones" panel...

* B-Bones can be shaped in EditMode to define a "curved rest pose" for the bone.
  This is useful for things like eyebrows and mouths/eyelids

* You can now make B-Bones use custom bones as their reference bone handles,
  instead of only using the parent/child bones. To do so, enable the
  "Use Custom Reference Handles" toggle. If none are specified, then the BBone will
  only use the Bendy Bone properties.

* Constraints Head/Tail option can now slide along the B-Bone shape, instead of
  just linearly interpolating between the endpoints of the bone.

For more details, see:
* http://aligorith.blogspot.co.nz/2016/05/bendy-bones-dev-update.html
* http://aligorith.blogspot.co.nz/2016/05/an-in-depth-look-at-how-b-bones-work.html



-- Credits --
Original Idea: Daniel M Lara (pepeland)
Original Patch/Research: Jose Molina
Additional Development + Polish: Joshua Leung (aligorith)
Testing/Feedback: Daniel M Lara (pepeland), Juan Pablo Bouza (jpbouza)

1 files changed, 19 insertions, 0 deletions

diff --git a/source/blender/editors/armature/armature_add.c b/source/blender/editors/armature/armature_add.c
index 6afc5a357c8..847b45d612c 100644
--- a/source/blender/editors/armature/armature_add.c
+++ b/source/blender/editors/armature/armature_add.c
@@ -83,6 +83,15 @@ EditBone *ED_armature_edit_bone_add(bArmature *arm, const char *name)
 	bone->segments = 1;
 	bone->layer = arm->layer;
 	
+	bone->roll1 = 0.0f;
+	bone->roll2 = 0.0f;
+	bone->curveInX = 0.0f;
+	bone->curveInY = 0.0f;
+	bone->curveOutX = 0.0f;
+	bone->curveOutY = 0.0f;
+	bone->scaleIn = 1.0f;
+	bone->scaleOut = 1.0f;
+
 	return bone;
 }
 
@@ -890,6 +899,16 @@ static int armature_extrude_exec(bContext *C, wmOperator *op)
 					newbone->segments = 1;
 					newbone->layer = ebone->layer;
 					
+					newbone->roll1 = ebone->roll1;
+					newbone->roll2 = ebone->roll2;
+					newbone->curveInX = ebone->curveInX;
+					newbone->curveInY = ebone->curveInY;
+					newbone->curveOutX = ebone->curveOutX;
+					newbone->curveOutY = ebone->curveOutY;
+					newbone->scaleIn = ebone->scaleIn;
+					newbone->scaleOut = ebone->scaleOut;
+
+
 					BLI_strncpy(newbone->name, ebone->name, sizeof(newbone->name));
 					
 					if (flipbone && forked) {   // only set if mirror edit