swift - iOS13 SceneKit 错误 – 清除从未释放纹理

Question

我有一个在 iOS 12.x 上运行良好的 ARKit 应用程序。在 iOS 13 上，我在控制台日志中遇到以下错误:

[SceneKit] Error: Purging never freed texture <AGXA9FamilyTexture: 0x11d688240>
    label = <none> 
    textureType = MTLTextureType2D 
    pixelFormat = MTLPixelFormatR16Float 
    width = 240 
    height = 1 
    depth = 1 
    arrayLength = 1 
    mipmapLevelCount = 1 
    sampleCount = 1 
    cpuCacheMode = MTLCPUCacheModeDefaultCache 
    storageMode = MTLStorageModePrivate 
    hazardTrackingMode = MTLHazardTrackingModeTracked 
    resourceOptions = MTLResourceCPUCacheModeDefaultCache MTLResourceStorageModePrivate MTLResourceHazardTrackingModeTracked  
    usage = MTLTextureUsageShaderRead MTLTextureUsageShaderWrite 
    shareable = 0 
    framebufferOnly = 0 
    purgeableState = MTLPurgeableStateNonVolatile 
    swizzle = [MTLTextureSwizzleRed, MTLTextureSwizzleGreen, MTLTextureSwizzleBlue, MTLTextureSwizzleAlpha] 
    isCompressed = 0 
    parentTexture = <null> 
    parentRelativeLevel = 0 
    parentRelativeSlice = 0 
    buffer = <null> 
    bufferOffset = 512 
    bufferBytesPerRow = 0 
    allowGPUOptimizedContents = YES
    label = <none>

它每隔几毫秒重复一次，使整个日志变得困惑。我无法缩小它的来源范围。

有趣的是，即使场景中没有单个节点，也会发生这种情况。如果我从 View 中删除整个 sceneView 那么它就会消失......(不是一个选项)

任何人有任何想法或提示如何追踪这个吗？

谢谢

Answer 1

我通过更新场景相机的设置解决了这个问题:

var sceneView: ARSCNView!
...
sceneView.pointOfView?.camera?.wantsHDR = false

希望这对您有所帮助。