如何使SCNNode始终指向ARFrame.camera [英] How to make SCNNode is always toward to ARFrame.camera

问题描述

- (void)session:(ARSession *)session didUpdateFrame:(ARFrame *)frame {
    SCNNode *shipNode = self.sceneView.scene.rootNode.childNodes[0];
    if (shipNode) {
        shipNode.eulerAngles = SCNVector3FromFloat3(frame.camera.eulerAngles);
    }
}

我想随着摄像机的移动来改变船的方向，但是上面的代码似乎没用.

I want to change ship's orientation with camera's moving, but the above code seems useless.

推荐答案

使用SCNBillboardConstraint使一个节点指向另一个节点.

Use an SCNBillboardConstraint to keep one node pointed toward another node.

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