SceneKit从单独的scn文件加载带有动画的节点 [英] SceneKit load node with animation from separate scn file

问题描述

我有一个动态创建SCNView的视图。它的场景是空的，但是当我按下一个按钮时，我想从单独的scn文件中添加一个节点。这个文件包含动画，我想在主场景中设置动画。问题是在将对象添加到场景后，它不是动画。当我将此文件用作SCNView场景时，它可以工作。 isPlaying和循环已启用。使用动画导入这样的节点还需要做什么？示例代码如下：

I have a view that creates SCNView dynamically. It's scene is empty, but when I press a button I would like to add a node from separate scn file. This file contains animation, and I would like it to animate in main scene. The problem is that after adding object to the scene it's not animating. When I use this file as SCNView scene it works. isPlaying and loops are enabled. What else do I need to do to import such node with animation? Sample code below:

override func viewDidLoad() {
    super.viewDidLoad()

    let scene = SCNScene()
    let sceneView = SCNView(frame: CGRect(x: 0, y: 0, width: 300, height: 300))
    sceneView.scene = scene
    sceneView.loops = true
    sceneView.isPlaying = true
    sceneView.autoenablesDefaultLighting = true
    view.addSubview(sceneView)


    let subNodeScene = SCNScene(named: "Serah_Animated.scn")!
    let serah = subNodeScene.rootNode.childNode(withName: "main", recursively: false)!

    scene.rootNode.addChildNode(serah)


}

推荐答案

您只需要检索动画：

        [childNode enumerateChildNodesUsingBlock:^(SCNNode *child, BOOL *stop) {
        for(NSString *key in child.animationKeys) {               // for every animation key
            CAAnimation *animation = [child animationForKey:key]; // get the animation
            animation.usesSceneTimeBase = NO;                     // make it system time based
            animation.repeatCount = FLT_MAX;                      // make it repeat forever
            [child addAnimation:animation forKey:key];            // animations are copied upon addition, so we have to replace the previous animation
        }
    }];

这篇关于SceneKit从单独的scn文件加载带有动画的节点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！