SceneKit中的allowRotation？ [英] allowRotation in SceneKit?

问题描述

如何禁止在SceneKit中旋转节点？

How can I disallow rotation of a node in SceneKit?

例如，我希望模型（圆锥体）能够动态，跳跃和飞行，但总是如此垂直导向？

For ex., I want a model (cone) to be dynamic, jumping and flying, but always vertically oriented?

我尝试修复它就像苹果的车辆演示一样，这是一个糟糕的解决方案。我也尝试下面的代码，但模型只是缓慢而且小故障掉落

I tried fix it like in apple's vehicle demo, it is bad solution. Also I tried below code, but model just slowly and glitchy falls down

- (void)renderer:(id<SCNSceneRenderer>)aRenderer didSimulatePhysicsAtTime:(NSTimeInterval)time{
    _node.rotation = SCNVector4Make(0, 0, 0, 0);
    //[_node.physicsBody resetTransform]; // - tried this too
}

...最后我没找到任何在scenekit手册中allowRotation = NO。

...and finally I did not find any "allowRotation=NO" in scenekit manuals.

推荐答案

而不是布尔 allowsRotation 在SpriteKit中标记，SceneKit允许您选择允许身体旋转的方向和数量。请参阅 angularVelocityFactor 属性。

Instead of a Boolean allowsRotation flag like in SpriteKit, SceneKit lets you choose which directions a body is allowed to rotate in and by how much. See the angularVelocityFactor property.

这可能比在不同值之间切换质量更好 - 这种方法看起来可能是非预期的行为，所以你可能不想依赖它。

This is probably a better idea than toggling the mass between different values — that approach looks like it could be unintended behavior, so you might not want to rely on it.

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