Since I updated to XCode 15, I got an annoying "app comes from an unidentified developper, do you confirm you want to open" alert (note: approximate translation).
I can still open and debug my app by clicking the "open" button, but that's a pain...
I have the "sign to run locally" build setting. And I run the debug target.
Any way to solve this or is it just a new XCode bug ?
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I am looking for a way to get the list of HomeKit secure videos that are stored on iCloud. The objective is to show a list of them, maybe with come information like person or animal identification.
I search the Apple doc for API but found nothing (I know the HomeKit doc, and have made several HomeKit apps already).
Can anybody point me to a documentation entry point, is that Apple reserved only ?
I have a human-like rigged 3D model in a DAE file. I want to programmatically build a scene with several instances of this model in different poses.
I can extract the SCNSkinner and skeleton chain from the DAE file without problem.
I have discovered that to have different poses, I need to clone the skeleton chain, and clone the SCNSkinner as well, then modify the skeletons position. Works fine.
This is done this way:
// Read the skinner from the DAE file
let skinnerNode = daeScene.rootNode.childNode(withName: "toto-base", recursively: true)! // skinner
let skeletonNode1 = skinnerNode.skinner!.skeleton!
// Adding the skinner node as a child of the skeleton node makes it easier to
// 1) clone the whole thing
// 2) add the whole thing to a scene
skeletonNode1.addChildNode(skinnerNode)
// Clone first instance to have a second instance
var skeletonNode2 = skeletonNode1.clone()
// Position and move the first instance
skeletonNode1.position.x = -3
let skeletonNode1_rightLeg = skeletonNode1.childNode(withName: "RightLeg", recursively: true)!
skeletonNode1_rightLeg.eulerAngles.x = 0.6
scene.rootNode.addChildNode(skeletonNode1)
// Position and move the second instance
skeletonNode2.position.x = 3
let skeletonNode2_leftLeg = skeletonNode2.childNode(withName: "LeftLeg", recursively: true)!
skeletonNode2_leftLeg.eulerAngles.z = 1.3
scene.rootNode.addChildNode(skeletonNode2)
It seems the boneWeights and boneIndices sources are duplicated for each skinner, so if I have let's say 100 instances, I eat a huge amount of memory, for something that is constant.
Is there any way to avoid the duplication of the boneWeights and boneIndices ?
I am trying to port SceneKit projects to Swift 6, and I just can't figure out how that's possible. I even start thinking SceneKit and Swift 6 concurrency just don't match together, and SceneKit projects should - hopefully for the time being only - stick to Swift 5.
The SCNSceneRendererDelegate methods are called in the SceneKit Thread.
If the delegate is a ViewController:
class GameViewController: UIViewController {
let aNode = SCNNode()
func renderer(_ renderer: any SCNSceneRenderer, updateAtTime time: TimeInterval) {
aNode.position.x = 10
}
}
Then the compiler generates the error "Main actor-isolated instance method 'renderer(_:updateAtTime:)' cannot be used to satisfy nonisolated protocol requirement"
Which is fully understandable.
The compiler even tells you those methods can't be used for protocol conformance, unless:
Conformance is declare as @preconcurrency SCNSceneRendererDelegate like this:
class GameViewController: UIViewController, @preconcurrency SCNSceneRendererDelegate {
But that just delays the check to runtime, and therefore, crash in the SceneKit Thread happens at runtime...
Again, fully understandable.
or the delegate method is declared nonisolated like this:
nonisolated func renderer(_ renderer: any SCNSceneRenderer, updateAtTime time: TimeInterval) {
aNode.position.x = 10
}
Which generates the compiler error: "Main actor-isolated property 'position' can not be mutated from a nonisolated context".
Again fully understandable.
If the delegate is not a ViewController but a nonisolated class, we also have the problem that SCNNode can't be used.
Nearly 100% of the SCNSceneRendererDelegate I've seen do use SCNNode or similar MainActor bound types, because they are meant for that.
So, where am I wrong ? What is the solution to use SceneKit SCNSceneRendererDelegate methods with full Swift 6 compilation ? Is that even possible for now ?
I may miss something obvious but...
Choosing the "New File From Template..." menu item, I just can't find how to create a SpriteKit Scene file (or SceneKit, by the way).
They seem to have disappeared from the chooser window (iOS and macOS).
Where are those gone ?