ios - SpriteKit 动画因 validateIndexBuffer 而崩溃

Question

我是 SpriteKit 世界的初学者，现在我正在通过 SKWarpGeometryGrid 制作动画。当我有大量 sourcePositions/destinationPositions 它填满了我的缓冲区，我遇到了下一次崩溃:validateIndexBuffer:131: failed assertion `indexBufferOffset(0) + (indexCount(4704) * 2) must be <= indexBuffer length.'

Sprite Kit app crashes when run on real device and plugged into computer

这个答案很有帮助，现在没有崩溃，但动画停止工作，图像不时从屏幕上消失。

调试器说了什么:

2018-06-07 14:27:27.102269+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Discarded (victim of GPU error/recovery) (IOAF code 5) 2018-06-07 14:27:27.102352+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Error (IOAF code 3) 2018-06-07 14:27:27.102389+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Discarded (victim of GPU error/recovery) (IOAF code 5) 2018-06-07 14:27:27.156201+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Discarded (victim of GPU error/recovery) (IOAF code 5) 2018-06-07 14:27:27.156278+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Error (IOAF code 3) 2018-06-07 14:27:27.156311+0300 LiveGram[15259:5348410] Execution of the command buffer was aborted due to an error during execution. Discarded (victim of GPU error/recovery) (IOAF code 5) 2018-06-07 14:27:27.158508+0300 LiveGram[15259:5348408] Execution of the command buffer was aborted due to an error during execution. Ignored (for causing prior/excessive GPU errors) (IOAF code 4) 2018-06-07 14:27:27.158586+0300 LiveGram[15259:5348408] Execution of the command buffer was aborted due to an error during execution. Ignored (for causing prior/excessive GPU errors) (IOAF code 4) 2018-06-07 14:27:27.158613+0300 LiveGram[15259:5348408] Execution of the command buffer was aborted due to an error during execution. Ignored (for causing prior/excessive GPU errors) (IOAF code 4)

有人知道我做错了什么吗？我该如何解决？

Answer 1

我遇到了这种类型的问题并且刚刚解决了它。当您为硬件分配过多工作而 GPU 无法如此快速地处理它时，就会发生这种情况。

你可以做些什么来避免崩溃: 在 Xcode 中: 1.Command+Option+R 2.选项标签 3.将Metal API验证设置为禁用

它应该可以防止应用程序崩溃，但问题仍然存在。

您接下来可以做的是搜索您的代码以了解问题的确切位置。我是这样做的:

注释部分代码并运行应用程序以查看错误是否仍然存在，如下所示:

/* //Put this at the beginning

CODE
.
.
.
CODE
*/    //This at the end 

如果错误仍然存​​在，请取消注释这部分代码并注释下一段代码，一直这样做直到您不再有问题为止。然后你将继续评论你的代码，但在问题部分的小部分，直到你找到到底是什么导致了它。 当您

addChild(This one needs hard GPU processing)

在我的例子中，我添加了一个 LightNode。我的解决方案是创建一个 SKAction:

let action =  SKAction.wait(forDuration: 1) //Try different time durations
scene.run(action, completion:
{
code that is causing the problem

})

通过这种方式，您可以分散所需的处理能力并中断硬件。

希望对您有所帮助!