Javascript Threejs UV协调纹理尺寸过大问题

我正在用画布创建纹理。我使用的是UV算法，在堆栈溢出时发现。但我认为，这个uv算法创建的面像是长方体几何体，我的纹理像这张照片。如何将此文本写入拖动区域

紫外线代码：

assignUVs(object) {
      object.geometry.computeBoundingBox();

      const {max, min} = object.geometry.boundingBox;

      const offset = new THREE.Vector2(0 - min.x, 0 - min.y);
      const range = new THREE.Vector2(max.x - min.x, max.y - min.y);

      object.geometry.faceVertexUvs[0] = object.geometry.faces.reduce(
          (acc, val) => {
              const v1 = object.geometry.vertices[val.a];
              const v2 = object.geometry.vertices[val.b];
              const v3 = object.geometry.vertices[val.c];

              acc.push([
                  new THREE.Vector2(
                      (v1.x + offset.x) / range.x,
                      (v1.y + offset.y) / range.y
                  ),
                  new THREE.Vector2(
                      (v2.x + offset.x) / range.x,
                      (v2.y + offset.y) / range.y
                  ),
                  new THREE.Vector2(
                      (v3.x + offset.x) / range.x,
                      (v3.y + offset.y) / range.y
                  )
              ]);

              return acc;
          },
          []
      );

      object.geometry.uvsNeedUpdate = true;
  }

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是否有任何使用限制？不，我不知道，但是，当我删除偏移纹理时，它们是不可见的