"Fix" for [#23621] lattice modifier on particle hair when applied doesn't apply it to the hair

* Although not strictly a bug it is the expected behavior and won't mess anything else up.
* Note: the lattice is applied to the actual hair keys instead of the calculated strands so the applied result will differ a bit from the original.

1 files changed, 15 insertions, 0 deletions

diff --git a/source/blender/editors/object/object_modifier.c b/source/blender/editors/object/object_modifier.c
index 286e953a69a..5cc6cb9107d 100644
--- a/source/blender/editors/object/object_modifier.c
+++ b/source/blender/editors/object/object_modifier.c
@@ -453,6 +453,21 @@ static int modifier_apply_obdata(ReportList *reports, Scene *scene, Object *ob,
 		BKE_report(reports, RPT_ERROR, "Cannot apply modifier for this object type");
 		return 0;
 	}
+
+	/* lattice modifier can be applied to particle system too */
+	if(ob->particlesystem.first) {
+
+		ParticleSystem *psys = ob->particlesystem.first;
+
+		for(; psys; psys=psys->next) {
+			
+			if(psys->part->type != PART_HAIR)
+				continue;
+
+			psys_apply_hair_lattice(scene, ob, psys);
+		}
+	}
+
 	return 1;
 }