只允许左键选中。

ShadowEditor.Web/src/editor/Editor.js

@@ -407,7 +407,7 @@ Editor.prototype.onMouseDown = function (event) {
     var intersect = this.raycaster.intersectObjects(this.scene.children, true)[0];
 
     if (intersect) {
-        this.app.call(`intersect`, this, intersect);
+        this.app.call(`intersect`, this, intersect, event);
     }
 };
 

ShadowEditor.Web/src/event/PickEvent.js

@@ -34,6 +34,10 @@ PickEvent.prototype.stop = function () {
 };
 
 PickEvent.prototype.onMouseDown = function (event) {
+    if (event.button !== 0) { // 只允许左键选中
+        return;
+    }
+
     var container = this.app.viewport.container;
 
     event.preventDefault();