== Armature Ghost and Path Drawing ==

The Plumiferos Team have requested some improvements to the
ghost and path drawing tools for armatures. These changes make
these more useful, with more customisable settings. A new panel in
the editing panels for armatures has been added to house these
settings.

-> Ghosts
In addition to the existing method of showing ghosts either side of the
current frame, it is now possible to show ghosts from a given frame range.
This is useful for visualising how the poses in another part of the animation
changed, while editing another part. The colour of ghosts goes from light
(earlier on) to darker (later on).

-> Paths
Several new options for path drawing have been added.
* It is now possibly specify a frame range in which to calculate paths too.
This offers speedups for longer timelines as a shorter span of time can be
sampled.
* Keyframes from the active action/action strip can be shown in a different
colour (in the default theme, this is yellow) on the path.
* Frame numbers for the highlighted positions on the path can be drawn.

Two notes of caution:
* For ghost range: keep the frame ranges relatively small (20-50 frames),
otherwise you will experience a slowdown.
* For path frame numbers: if you have a graphics card which is picky about
text in the 3d-view (like x,y,z labels on empty), this may cause issues.

1 files changed, 14 insertions, 3 deletions

diff --git a/source/blender/makesdna/DNA_armature_types.h b/source/blender/makesdna/DNA_armature_types.h
index cfcdd4ec959..6225b018c8b 100644
--- a/source/blender/makesdna/DNA_armature_types.h
+++ b/source/blender/makesdna/DNA_armature_types.h
@@ -76,10 +76,13 @@ typedef struct bArmature {
 	ListBase	chainbase;
 	int			flag;
 	int			drawtype;			
-	short		deformflag, pad1;
+	short		deformflag; 
+	short		pathflag;
 	short		layer, layer_protected;		/* for buttons to work, both variables in this order together */
-	short		ghostep, ghostsize;
-	int			pad2;
+	short		ghostep, ghostsize;		/*number of frames to ghosts to show, and step between them  */
+	short		ghosttype, pathsize;		/* ghost drawing options and number of frames between points of path */
+	int			ghostsf, ghostef;		/* start and end frames of ghost-drawing range */
+	int 		pathsf, pathef;			/* start and end frames of path-calculation range for all bones */	
 }bArmature;
 
 /* armature->flag */
@@ -99,6 +102,7 @@ typedef struct bArmature {
 #define		ARM_AUTO_IK		0x200
 			/* made option negative, for backwards compat */
 #define		ARM_NO_CUSTOM	0x400
+#define		ARM_COL_CUSTOM	0x800
 
 /* armature->drawtype */
 #define		ARM_OCTA		0
@@ -110,6 +114,13 @@ typedef struct bArmature {
 #define		ARM_DEF_VGROUP		1
 #define		ARM_DEF_ENVELOPE	2
 
+/* armature->pathflag */
+#define		ARM_PATH_FNUMS	0x001
+#define		ARM_PATH_KFRAS	0x002
+
+/* armature->ghosttype */
+#define 	ARM_GHOST_CUR	0
+#define		ARM_GHOST_RANGE	1
 
 /* bone->flag */
 #define		BONE_SELECTED	1