spApplyTransformation: fixed error on full precision BSTriShape vertices

CHANGELOG.md

@@ -6,6 +6,7 @@
 * Exported UV layouts can be solid filled.
 * Improvements to OBJ export.
 * Added support for more Skyrim Havok material types that were previously unknown.
+* Fixed error message on using Transform/Apply on BSTriShape geometry with full precision vertex positions.
 * Fixed the block types NiMeshPSysData and NiMeshParticleSystem being incorrectly filtered out by 'Block/Insert'.
 
 #### NifSkope-2.0.dev9-20241112

src/spells/transform.cpp

@@ -279,9 +279,14 @@ QModelIndex spApplyTransformation::cast( NifModel * nif, const QModelIndex & ind
 		for ( int i = 0; i < nif->rowCount( iVertData ); i++ ) {
 			auto iVert = nif->getIndex( iVertData, i );
 
-			auto vertex = t * nif->get<Vector3>( iVert, "Vertex" );
-			if ( !nif->set<HalfVector3>( iVert, "Vertex", vertex ) )
-				nif->set<Vector3>( iVert, "Vertex", vertex );
+			auto iVertex = nif->getItem( iVert, "Vertex" );
+			if ( iVertex ) {
+				auto vertex = t * nif->get<Vector3>( iVertex );
+				if ( iVertex->hasValueType( NifValue::tHalfVector3 ) )
+					nif->set<HalfVector3>( iVertex, vertex );
+				else
+					nif->set<Vector3>( iVertex, vertex );
+			}
 
 			// Transform BTN if applicable
 			if ( !(t.rotation == Matrix()) ) {