Revert "Small performance boost in using Mat4::operator*= instead of operator* (#19960)" (#19975)

minggo · web-flow · commit 7d0c10f7e1c3 · 2019-07-24T16:49:10.000+08:00
This reverts commit a242a79.
diff --git a/cocos/2d/CCNode.cpp b/cocos/2d/CCNode.cpp
@@ -1686,7 +1686,7 @@ Mat4 Node::getNodeToParentTransform(Node* ancestor) const
 
     for (Node *p = _parent;  p != nullptr && p != ancestor ; p = p->getParent())
     {
-        t *= p->getNodeToParentTransform();
+        t = p->getNodeToParentTransform() * t;
     }
 
     return t;

Original file line number	Diff line number	Diff line change
`@@ -1686,7 +1686,7 @@ Mat4 Node::getNodeToParentTransform(Node* ancestor) const`
`1686`	`1686`
`1687`	`1687`	`for (Node *p = _parent; p != nullptr && p != ancestor ; p = p->getParent())`
`1688`	`1688`	`{`
`1689`		`- t *= p->getNodeToParentTransform();`
	`1689`	`+ t = p->getNodeToParentTransform() * t;`
`1690`	`1690`	`}`
`1691`	`1691`
`1692`	`1692`	`return t;`