Cleanup: Make curve deform argument optional

The "dir" argument to `BKE_where_on_path` was only actually
used in a few places. It's easier to see where those are if there
isn't always a dummy argument.

1 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/blenkernel/intern/object.cc b/source/blender/blenkernel/intern/object.cc
index a54e2910b79..92c350c5208 100644
--- a/source/blender/blenkernel/intern/object.cc
+++ b/source/blender/blenkernel/intern/object.cc
@@ -3087,12 +3087,12 @@ void BKE_object_matrix_local_get(struct Object *ob, float r_mat[4][4])
 static bool ob_parcurve(Object *ob, Object *par, float r_mat[4][4])
 {
   Curve *cu = (Curve *)par->data;
-  float vec[4], dir[3], quat[4], radius, ctime;
+  float vec[4], quat[4], radius, ctime;
 
   /* NOTE: Curve cache is supposed to be evaluated here already, however there
    * are cases where we can not guarantee that. This includes, for example,
    * dependency cycles. We can't correct anything from here, since that would
-   * cause a threading conflicts.
+   * cause threading conflicts.
    *
    * TODO(sergey): Some of the legit looking cases like T56619 need to be
    * looked into, and maybe curve cache (and other dependencies) are to be
@@ -3125,7 +3125,7 @@ static bool ob_parcurve(Object *ob, Object *par, float r_mat[4][4])
 
   /* vec: 4 items! */
   if (BKE_where_on_path(
-          par, ctime, vec, dir, (cu->flag & CU_FOLLOW) ? quat : nullptr, &radius, nullptr)) {
+          par, ctime, vec, nullptr, (cu->flag & CU_FOLLOW) ? quat : nullptr, &radius, nullptr)) {
     if (cu->flag & CU_FOLLOW) {
       quat_apply_track(quat, ob->trackflag, ob->upflag);
       normalize_qt(quat);