Three.js TextGeometry未在场景中显示

Question

我按照示例页面进行操作，但是无法绘制TextGeometry。该程序无异常运行。

WITH A AS (
    SELECT col1, ROW_NUMBER() OVER (ORDER BY col1 desc) AS row_num
      FROM TABLE_1
     WHERE col1 < 0),
     B AS (
    SELECT col1, ROW_NUMBER() OVER (ORDER BY col1) AS row_num
      FROM TABLE_1
     WHERE col1 >= 0)
SELECT A.col1 AS C1, B.col1 AS C2
  FROM A
 INNER JOIN B
    ON A.row_num = B.row_num;

你能指出错误可能在哪里吗？