Armature-Pose IK goodies!

- Added option to the IK buttons, to have it use the 'tip' as end of the
  IK chain. I never really understood this old convention (IK didn't work
  on the Bone itself).
  Old files still will read OK though. But I made the "To Tip" a default
  when adding new IK constraints.

- Hotkey CTRL+I: add IK, with option to have it adding an Empty target,
  or use a selected Bone as target. With the new non-modal PoseMode, it
  gives instant access to playing with the IK chain.

- Hotkey ALT+I: clears IK, on all selected Bones

- Hotkey ALT+C: clears Constraints on all selected Bones (incl IK)

1 files changed, 5 insertions, 4 deletions

diff --git a/source/blender/makesdna/DNA_constraint_types.h b/source/blender/makesdna/DNA_constraint_types.h
index 2646f803bf9..cfb180cf33d 100644
--- a/source/blender/makesdna/DNA_constraint_types.h
+++ b/source/blender/makesdna/DNA_constraint_types.h
@@ -67,13 +67,11 @@ typedef struct bConstraint{
 typedef struct bKinematicConstraint{
 	Object		*tar;
 	float		tolerance;		/* Acceptable distance from target */
-	int			iterations;		/* Maximum number of iterations to try */
+	short		iterations;		/* Maximum number of iterations to try */
+	short		flag;			/* Like IK to Tip */
 	char		subtarget[32];	/* String to specify sub-object target */
 
-	float		cacheeff[3];	/* Target location cache */
-	int			reserved1;
 
-	float		cachemat[4][4];	/* Result cache */
 } bKinematicConstraint;
 
 typedef struct bTrackToConstraint{
@@ -219,5 +217,8 @@ typedef struct bStretchToConstraint{
 #define PLANE_Y		0x00000001
 #define PLANE_Z		0x00000002
 
+/* bKinematicConstraint->flag */
+#define CONSTRAINT_IK_TIP		1
+
 #endif