I have a huge sphere where the camera stays inside the sphere and turn on front face culling on my ShaderGraphMaterial applied on that sphere, so that I can place other 3D stuff inside. However when it comes to attachment, the object occlusion never works as I am expecting. Specifically my attachments are occluded by my sphere (some are not so the behavior is not deterministic.
Then I suspect it was the issue of depth testing so I started using ModelSortGroup to reorder the rending sequence. However it doesn't work. As I was searching through the internet, this post's comments shows that ModelSortGroup simply doesn't work on attachments.
So I wonder how should I tackle this issue now? To let my attachments appear inside my sphere.
OS/Sys: VisionOS 2.3/XCode 16.3
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Recently I am about to transfer my app to another developer account. I checked the official documents to see the preparation I need to make. The most key two things I care are data and subscription. The auto-subscription part is clear and have clear step-by-step instructions. But for the data part, especially I find it was unclear about iCloudKit related service. As a developer I want to keep all user's settings and data when transferring the app. I use CloudKit - CoreData, CloudKit - KV, iCloud Keychain, to save user's preference data, I wonder:
As recipient account, do I need to do anything (like enable some iCloud related features) before accepting a transfer in the aspect of iCloud sharing feature?
I notice that UbiquitousKVStore automatically create a $(TeamIdentifierPrefix)$(CFBundleIdentifier) in my entitlements file. Which means after the transfer, the container's name would change because of TeamID's change. Do I need to change that to use the original TeamID to keep the container's name the same?
As a developer there are actually two stages when transferring an app, "accept a transfer", "publish a new version after accepting a transfer". I wonder when publishing with new account, except for changing the provisioning team file, what others I need to do to ensure that the transferred app has all authority to access "previous service" (like regression test to check if all data, subscription transaction preserved after transfer)?
As recipient account, should I set up my subscription group before accepting a transfer?
When the entity of name would be changed on App Store? Is that the time when the recipient account click "accept the transfer"?
Thanks
It's all about notifications to trigger actions from RCP's new Timeline system. From Compose interactive 3D content in Reality Composer Pro I am actually starting to confuse why there was need to use Entity.applyTapForBehaviors in code to trigger content in Behaviors Component. Simply because in Behaviors Component, we have chosen OnTap to allow a "Tap Notification" to trigger our action (on a selected target object).
Then I guess by selecting OnCollision this trigger, I should write something like CollisionEvent.entityA.applyCollisionForBehaviors, which we don't have. And ofc the collision on my object won't trigger this action (because I only did things in RCP not in code).
Ignoring this post has pointed out we could use Behaviors Component's OnNotification to trigger something for now.
I found that I could still use OnTap trigger but actually put my code Entity.applyTapForBehaviors under my subscribed collision's begin event. That actually works better than OnCollision
So what is the design principles here? And how could I trigger a collision notification to let my Behaviors Component's OnCollision actually works?
Currently I am using mixed style immersive view to place both my WindowView(plain style) and ImmersiveView content together. The issue is that the rendering depth testing may always let the virtual content block my normal WindowView. Is it possible to manually set windowedVIew always displays in the front of my virtual view in mixed style immersion? (I know modelSortGroup but it doesn't quite fits here)
Or if I can dynamically change the .progressive value when the immersive space is open (set the value to zero means .mixed itself right?)
Hi I am trying to implement something simple as people can share their Spatial Photos with others (just like this post). I encountered the same issue with him, but his answer doesn't help me out here.
Briefly speaking, I am using CGImgaeSoruce to extract paired leftImage and rightImage from one fetched spatial photo
let photos = PHAsset.fetchAssets(with: .image, options: nil)
// enumerating photos ....
if asset.mediaSubtypes.contains(PHAssetMediaSubtype.spatialMedia) {
spatialAsset = asset
}
// other code show below
I can fetch left and right images from native Spatial Photo (taken by Apple Vision Pro or iPhone 15+), but it didn't work on generated spatial photo (2D -> 3D feat in Photos).
// imageCount is 1 when it comes to generated spatial photo
let imageCount = CGImageSourceGetCount(source)
I searched over the net and someone says the generated version is having a depth image instead of left/right pair. But still I cannot extract any depth image from imageSource.
The full code below, the imagePair extraction will stop at "no groups found":
func extractPairedImage(phAsset: PHAsset, completion: @escaping (StereoImagePair?) -> Void) {
let options = PHImageRequestOptions()
options.isNetworkAccessAllowed = true
options.deliveryMode = .highQualityFormat
options.resizeMode = .none
options.version = .original
return PHImageManager.default().requestImageDataAndOrientation(for: phAsset, options: options) {
imageData, _, _, _ in
guard let imageData,
let imageSource = CGImageSourceCreateWithData(imageData as CFData, nil)
else {
completion(nil)
return
}
let stereoImagePair = stereoImagePair(from: imageSource)
completion(stereoImagePair)
}
}
}
func stereoImagePair(from source: CGImageSource) -> StereoImagePair? {
guard let properties = CGImageSourceCopyProperties(source, nil) as? [CFString: Any] else {
return nil
}
let imageCount = CGImageSourceGetCount(source)
print(String(format: "%d images found", imageCount))
guard let groups = properties[kCGImagePropertyGroups] as? [[CFString: Any]] else {
/// function returns here
print("no groups found")
return nil
}
guard
let stereoGroup = groups.first(where: {
let groupType = $0[kCGImagePropertyGroupType] as! CFString
return groupType == kCGImagePropertyGroupTypeStereoPair
})
else {
return nil
}
guard let leftIndex = stereoGroup[kCGImagePropertyGroupImageIndexLeft] as? Int,
let rightIndex = stereoGroup[kCGImagePropertyGroupImageIndexRight] as? Int,
let leftImage = CGImageSourceCreateImageAtIndex(source, leftIndex, nil),
let rightImage = CGImageSourceCreateImageAtIndex(source, rightIndex, nil),
let leftProperties = CGImageSourceCopyPropertiesAtIndex(source, leftIndex, nil),
let rightProperties = CGImageSourceCopyPropertiesAtIndex(source, rightIndex, nil)
else {
return nil
}
return (leftImage, rightImage, self.identifier)
}
Any suggestion? Thanks
visionOS 2.4