Yet another tweak to stretch volume variation.

Make sure the 1.0 value is not affected by smoothing, and min/max limits
never go above or below 1.0 respectively. This was a request by
animators since not modifying the mesh in its rest pose is regarded as
crucial.

1 files changed, 30 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_270.c b/source/blender/blenloader/intern/versioning_270.c
index d8da0a12b50..bd1b5f2c269 100644
--- a/source/blender/blenloader/intern/versioning_270.c
+++ b/source/blender/blenloader/intern/versioning_270.c
@@ -114,6 +114,19 @@ static void do_version_constraints_radians_degrees_270_5(ListBase *lb)
 	}
 }
 
+static void do_version_constraints_stretch_to_limits(ListBase *lb)
+{
+	bConstraint *con;
+
+	for (con = lb->first; con; con = con->next) {
+		if (con->type == CONSTRAINT_TYPE_STRETCHTO) {
+			bStretchToConstraint *data = (bStretchToConstraint *)con->data;
+			data->bulge_min = 1.0f;
+			data->bulge_max = 1.0f;
+		}
+	}
+}
+
 void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 {
 	if (!MAIN_VERSION_ATLEAST(main, 270, 0)) {
@@ -405,4 +418,21 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 			image->gen_color[3] = 1.0f;
 		}
 	}
+
+	if (!DNA_struct_elem_find(fd->filesdna, "bStretchToConstraint", "float", "bulge_min")) {
+		Object *ob;
+
+		/* Update Transform constraint (again :|). */
+		for (ob = main->object.first; ob; ob = ob->id.next) {
+			do_version_constraints_stretch_to_limits(&ob->constraints);
+
+			if (ob->pose) {
+				/* Bones constraints! */
+				bPoseChannel *pchan;
+				for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+					do_version_constraints_stretch_to_limits(&pchan->constraints);
+				}
+			}
+		}
+	}
 }