修改法向量为归一化向量

js/util.js

@@ -704,10 +704,11 @@ function findverticalLine(faceLine) {
     }
     let crossVec = new THREE.Vector3();
     crossVec.crossVectors(verticalLineData.vecAry[0], verticalLineData.vecAry[1]);
+    crossVec.normalize();
     verticalLineData.verticalVec.push(crossVec.x, crossVec.y, crossVec.z)
     // console.log(tmp);
     // console.log(lineAry);
-    return lineAry;
+    return verticalLineData;
 
 }