Merge pull request #72931 from TokageItLab/improve-root-motion-for-rot-and-pos

Add root motion accumulator to fix broken RootMotionView

1 files changed, 5 insertions, 2 deletions

diff --git a/scene/animation/root_motion_view.cpp b/scene/animation/root_motion_view.cpp
index 3d8d451c70..fc758b9456 100644
--- a/scene/animation/root_motion_view.cpp
+++ b/scene/animation/root_motion_view.cpp
@@ -88,6 +88,7 @@ void RootMotionView::_notification(int p_what) {
 		case NOTIFICATION_INTERNAL_PROCESS:
 		case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
 			Transform3D transform;
+			Basis diff;
 
 			if (has_node(path)) {
 				Node *node = get_node(path);
@@ -103,9 +104,9 @@ void RootMotionView::_notification(int p_what) {
 						set_process_internal(true);
 						set_physics_process_internal(false);
 					}
-
 					transform.origin = tree->get_root_motion_position();
 					transform.basis = tree->get_root_motion_rotation(); // Scale is meaningless.
+					diff = tree->get_root_motion_rotation_accumulator();
 				}
 			}
 
@@ -115,8 +116,10 @@ void RootMotionView::_notification(int p_what) {
 
 			first = false;
 
-			accumulated.origin += transform.origin;
 			accumulated.basis *= transform.basis;
+			transform.origin = (diff.inverse() * accumulated.basis).xform(transform.origin);
+			accumulated.origin += transform.origin;
+
 			accumulated.origin.x = Math::fposmod(accumulated.origin.x, cell_size);
 			if (zero_y) {
 				accumulated.origin.y = 0;