Fix `ShapeCast3D` creating runtime shape in editor

2 files changed, 10 insertions, 3 deletions

diff --git a/editor/plugins/node_3d_editor_gizmos.cpp b/editor/plugins/node_3d_editor_gizmos.cpp
index 5c66026c1b..0070226d40 100644
--- a/editor/plugins/node_3d_editor_gizmos.cpp
+++ b/editor/plugins/node_3d_editor_gizmos.cpp
@@ -2569,9 +2569,12 @@ void ShapeCast3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
 
 	const Ref<StandardMaterial3D> material = shapecast->is_enabled() ? shapecast->get_debug_material() : get_material("shape_material_disabled");
 
-	p_gizmo->add_lines(shapecast->get_debug_shape_vertices(), material);
 	p_gizmo->add_lines(shapecast->get_debug_line_vertices(), material);
 
+	if (shapecast->get_shape().is_valid()) {
+		p_gizmo->add_lines(shapecast->get_debug_shape_vertices(), material);
+	}
+
 	p_gizmo->add_collision_segments(shapecast->get_debug_line_vertices());
 }
 
diff --git a/scene/3d/shape_cast_3d.cpp b/scene/3d/shape_cast_3d.cpp
index df8bd7dfc9..ac804280fe 100644
--- a/scene/3d/shape_cast_3d.cpp
+++ b/scene/3d/shape_cast_3d.cpp
@@ -577,14 +577,18 @@ void ShapeCast3D::_update_debug_shape() {
 		_create_debug_shape();
 	}
 
+	_update_debug_shape_vertices();
+
+	if (Engine::get_singleton()->is_editor_hint()) {
+		return;
+	}
+
 	MeshInstance3D *mi = static_cast<MeshInstance3D *>(debug_shape);
 	Ref<ArrayMesh> mesh = mi->get_mesh();
 	if (!mesh.is_valid()) {
 		return;
 	}
 
-	_update_debug_shape_vertices();
-
 	mesh->clear_surfaces();
 
 	Array a;