更新 获得相机up向量测试

__test__/Geometry/GeUtils.test.ts

@@ -0,0 +1,16 @@
+import { getLoocAtUpVec, cZAxis } from "./../../src/Geometry/GeUtils"
+import { Vector3 } from "three";
+
+test('getLoocAtUpVec', () =>
+{
+    //俯视图 0,1,0
+    expect(getLoocAtUpVec(new Vector3(0, 0, 1)) /*?*/).toMatchSnapshot();
+    //仰视图
+    expect(getLoocAtUpVec(new Vector3(0, 0, -1)) /*?*/).toMatchSnapshot();
+    //左视图
+    expect(getLoocAtUpVec(new Vector3(-1, 0, 0)) /*?*/).toMatchSnapshot();
+    //右视图
+    expect(getLoocAtUpVec(new Vector3(1, 0, 0)) /*?*/).toMatchSnapshot();
+    //前视图
+    expect(getLoocAtUpVec(new Vector3(0, 1, 0)) /*?*/).toMatchSnapshot();
+});

__test__/Geometry/__snapshots__/GeUtils.test.ts.snap

@@ -0,0 +1,41 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`getLoocAtUpVec 1`] = `
+Vector3 {
+  "x": 0,
+  "y": 1,
+  "z": 0,
+}
+`;
+
+exports[`getLoocAtUpVec 2`] = `
+Vector3 {
+  "x": 0,
+  "y": -1,
+  "z": 0,
+}
+`;
+
+exports[`getLoocAtUpVec 3`] = `
+Vector3 {
+  "x": 0,
+  "y": 0,
+  "z": 1,
+}
+`;
+
+exports[`getLoocAtUpVec 4`] = `
+Vector3 {
+  "x": 0,
+  "y": 0,
+  "z": 1,
+}
+`;
+
+exports[`getLoocAtUpVec 5`] = `
+Vector3 {
+  "x": 0,
+  "y": -0,
+  "z": 1,
+}
+`;

src/Geometry/GeUtils.ts

@@ -82,7 +82,7 @@ export function getLoocAtUpVec(dir: THREE.Vector3): THREE.Vector3
     {
         return new THREE.Vector3(0, 1, 0);
     }
-    else if (norm.equals(cZAxis.clone().multiplyScalar(-1)))
+    else if (norm.equals(cZAxis.clone().negate()))
     {
         return new THREE.Vector3(0, -1, 0);
     }