diff -r 7c4a63a02632 -r 028798a72591 src/parser.cpp
--- a/src/parser.cpp	Mon Mar 09 22:12:50 2020 +0200
+++ b/src/parser.cpp	Mon Mar 09 23:42:26 2020 +0200
@@ -263,6 +263,21 @@
 		}
 		invertNext = false;
 	}
+	// Test quadrilateral splitting by splitting all the quadrilaterals
+	QVector<ldraw::quadrilateralid_t> quadrilateral_ids;
+	for (int i = 0; i < editor.model().size(); i += 1)
+	{
+		const ldraw::id_t id = editor.model().resolve(editor.model().index(i));
+		const ldraw::quadrilateralid_t quad_id = editor.model().checkType<ldraw::Quadrilateral>(id);
+		if (not(quad_id == ldraw::NULL_ID))
+		{
+			quadrilateral_ids.push_back(quad_id);
+		}
+	}
+	for (const ldraw::quadrilateralid_t id : quadrilateral_ids)
+	{
+		ldraw::splitQuadrilateral(editor, id);
+	}
 }
 
 static ldraw::Color colorFromString(const QString& colorString)
@@ -376,11 +391,10 @@
 		throw BodyParseError{"wrong amount of tokens"};
 	}
 	const ldraw::Color color = colorFromString(tokens[colorPosition]);
-	QVector<glm::vec3> vertices;
-	vertices.reserve(NumVertices);
+	std::array<glm::vec3, NumVertices> vertices;
 	for (int i = 0; i < NumVertices; i += 1)
 	{
-		vertices.append(vertexFromStrings(tokens, vertexPosition(i)));
+		vertices[unsigned_cast(i)] = vertexFromStrings(tokens, vertexPosition(i));
 	}
 	return std::make_unique<T>(vertices, color);
 }