adding a video in a SceneKit scene using a SpriteKit SKVideoNode

gistfile1.swift

    let spriteKitScene = SKScene(size: CGSize(width: 1276.0 / 2.0, height: 712.0 / 2.0))
    var videoSpriteKitNode:SKVideoNode?
    let videoNode = SCNNode()

  videoNode.geometry = SCNPlane(width: videoNodeWidth, height: videoNodeHeight)
        
   // using SpriteKit scene with videonode inside
   //
    spriteKitScene.scaleMode = .AspectFit
    
    videoSpriteKitNode?.position = CGPoint(x: spriteKitScene.size.width / 2.0, y: spriteKitScene.size.height / 2.0)
    
    videoSpriteKitNode?.size = spriteKitScene.size
    spriteKitScene.addChild(videoSpriteKitNode!)
    
    videoNode.geometry?.firstMaterial?.diffuse.contents = spriteKitScene
    videoNode.geometry?.firstMaterial?.doubleSided = true
    
    // flip video upside down, so that it's shown in the right position
    //
    var transform = SCNMatrix4MakeRotation(Float(M_PI), 0.0, 0.0, 1.0)
    transform = SCNMatrix4Translate(transform, 1.0, 1.0, 0)
    
    videoNode.geometry?.firstMaterial?.diffuse.contentsTransform = transform
    
    videoNode.position = SCNVector3(x: 0, y: 30, z: 7)
    
    aSceneKitNode.addChildNode(videoNode)
        
    videoSpriteKitNode?.play()

Or you can just use:

videoSpriteKitNode?.yScale = -1

Any idea why is it shown upside down?

I was doing something similar and getting upside down labels. Try this:

videoNode.geometry?.firstMaterial?.diffuse.contentsTransform = SCNMatrix4Translate(SCNMatrix4MakeScale(1, -1, 1), 0, 1, 0)

(From this post: https://stackoverflow.com/questions/33284781/scenekit-flip-direction-of-scnmaterial)

@guoye-zhang's suggestion using videoSpriteKitNode?.yScale = -1 works great for me

contentsTransform = SCNMatrix4Translate(SCNMatrix4MakeScale(1, -1, 1), 0, 1, 0) doesn't seem to do anything on iOS 13.4