Fix Basis::scaled_orthogonal using incorrect abs function.

src/variant/basis.cpp

@@ -261,7 +261,7 @@ Basis Basis::scaled_orthogonal(const Vector3 &p_scale) const {
 	Basis b;
 	for (int i = 0; i < 3; i++) {
 		for (int j = 0; j < 3; j++) {
-			dots[j] += s[i] * abs(m.get_column(i).normalized().dot(b.get_column(j)));
+			dots[j] += s[i] * Math::abs(m.get_column(i).normalized().dot(b.get_column(j)));
 		}
 	}
 	m.scale_local(Vector3(1, 1, 1) + dots);