Pfthb

So I have following code to create custom wall

 let wall = SCNPlane(width: CGFloat(distance),
 height: CGFloat(height))
 wall.firstMaterial = wallMaterial()
 let node = SCNNode(geometry: wall)

 // always render before the beachballs
 node.renderingOrder = -10

 // get center point
 node.position = SCNVector3(from.x + (to.x - from.x) * 0.5,
 from.y + height * 0.5,
 from.z + (to.z - from.z) * 0.5)
 node.eulerAngles = SCNVector3(0,
 -atan2(to.x - node.position.x, from.z - node.position.z) - Float.pi * 0.5,
 0)

And Now I am adding simple SCNPlane on hit test and add video (skscene to it)

 // first.node is hittest result 

 let node = SCNNode(geometry: SCNPlane(width: CGFloat(width) , height: CGFloat(height))
 node.geometry?.firstMaterial?.isDoubleSided = true
 node.geometry?.firstMaterial?.diffuse.contents = self.create2DVideoScene(xScale: first.node.eulerAngles.y < 0 ? -1 : nil)
 node.position = nodesWithDistance.previous.node.mainNode.position

 node.eulerAngles = first.node.eulerAngles

Here How I created 2d node

 /// Creates 2D video scene
 private func create2DVideoScene (xScale:CGFloat?) -> SKScene 
 var videoPlayer = AVPlayer()

 if let validURL = Bundle.main.url(forResource: "video", withExtension: "mp4", subdirectory: "/art.scnassets") 
 let item = AVPlayerItem(url: validURL)
 videoPlayer = AVPlayer(playerItem: item)
 
 let videoNode = SKVideoNode(avPlayer: videoPlayer)
 videoNode.yScale *= -1

 // While debug I observe that if first.node.rotation.y in - , then we need to change xScale to -1 (when wall draw from right -> left )

 if let xScale = xScale 
 videoNode.xScale *= xScale

 


 videoNode.play()

 let skScene = SKScene(size: self.sceneView.frame.size)
 skScene.scaleMode = .aspectFill
 skScene.backgroundColor = .green
 skScene.addChild(videoNode)
 videoNode.position = CGPoint(x: skScene.size.width/2, y: skScene.size.height/2)
 videoNode.size = skScene.size
 return skScene
 

Issue :: If I draw wall node from left to right means first point is on left side and other point on right side and draw wall between them. Then Video is flipped.

If I draw from right to left means first point is on right side and second point is on left side and draw line between them then video is perfectly fine.

To fix this I checked wall eulerAngles check the line self.create2DVideoScene but this is not working in every area of real world

I want video should not be start flipped in front of user

EDIT

video is flipped because ofeulerAngles is different in both case while create a wall

Angle point1 to point2 --> (0.000000 -1.000000 0.000000 3.735537)

Angle point2 to point1 -- > (0.000000 -1.000000 0.000000 0.478615)

Issue video Click here to play video

Please please provide the suggestion or solution of this issue .

Video flipped

I have fixed issue with temporary solution still looking for a better one

Issue is of wall. wall is flipped other side of camera when draw from right to left direction. I have figure it out by setting isDoubleSided = false and by applying a image as diffuse contents which has text and I can see that image is flipped itself.

I have tried many things but this one helps me

1. Normalize vector


2. Find the cross between to SCNVectors


3. If y > 0 I just swapped from and to Value

Code

 let normalizedTO = to.normalized()
 let normalizedFrom = from.normalized()
 let angleBetweenTwoVectors = normalizedTO.cross(normalizedFrom)

 var from = from
 var to = to
 if angleBetweenTwoVectors.y > 0 
 let temp = from
 from = to
 to = temp
 

// Inside extension of SCNVector3
func normalized() -> SCNVector3 
 if self.length() == 0 
 return self
 

 return self / self.length()


func cross(_ vec: SCNVector3) -> SCNVector3 
 return SCNVector3(self.y * vec.z - self.z * vec.y, self.z * vec.x - self.x * vec.z, self.x * vec.y - self.y * vec.x)
 

Hope it is helpful. If anyone know better solution please answer it.