DRW: draw hook relationship lines

This wasn't added back from 2.7x, making "Recenter Hook" applier to
do nothing.

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/draw/engines/overlay/overlay_extra.c b/source/blender/draw/engines/overlay/overlay_extra.c
index fc1ced43832..d4169014385 100644
--- a/source/blender/draw/engines/overlay/overlay_extra.c
+++ b/source/blender/draw/engines/overlay/overlay_extra.c
@@ -1284,6 +1284,19 @@ static void OVERLAY_relationship_lines(OVERLAY_ExtraCallBuffers *cb,
     OVERLAY_extra_line_dashed(cb, parent_pos, ob->obmat[3], relation_color);
   }
 
+  /* Drawing the hook lines. */
+  for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+    if (md->type == eModifierType_Hook) {
+      HookModifierData *hmd = (HookModifierData *)md;
+      float center[3];
+      mul_v3_m4v3(center, ob->obmat, hmd->cent);
+      if (hmd->object) {
+        OVERLAY_extra_line_dashed(cb, hmd->object->obmat[3], center, relation_color);
+      }
+      OVERLAY_extra_point(cb, center, relation_color);
+    }
+  }
+
   if (ob->rigidbody_constraint) {
     Object *rbc_ob1 = ob->rigidbody_constraint->ob1;
     Object *rbc_ob2 = ob->rigidbody_constraint->ob2;