Bugfix #20940: Offset always resets to 1 in follow path constraint

Made the 'Offset Factor' setting use a separate variable from the 'Offset' setting in the DNA stuff. While we could get away with this sort of thing in the past, it turns out that with the Datablocks viewer these days, settings sharing an internal var but with different ranges/behaviour doesn't work well anymore, since later instances override earlier ones.

1 files changed, 8 insertions, 4 deletions

diff --git a/source/blender/makesdna/DNA_constraint_types.h b/source/blender/makesdna/DNA_constraint_types.h
index 163933da12a..09b25f9b453 100644
--- a/source/blender/makesdna/DNA_constraint_types.h
+++ b/source/blender/makesdna/DNA_constraint_types.h
@@ -257,11 +257,15 @@ typedef struct bDampTrackConstraint {
 
 /* Follow Path constraints */
 typedef struct bFollowPathConstraint {
-	Object		*tar;	/* Must be path object */
-	float		offset; /* Offset in time on the path (in frame) */
+	Object		*tar;			/* Must be path object */
+	
+	float		offset; 		/* Offset in time on the path (in frames), when NOT using 'fixed position' */
+	float 		offset_fac;		/* Parametric offset factor defining position along path, when using 'fixed position' */
+	
 	int			followflag;
-	int			trackflag;
-	int			upflag;
+	
+	short		trackflag;
+	short		upflag;
 } bFollowPathConstraint;
 
 /* Stretch to constraint */