scenekit

I'm trying to add a bump map to a material and since apparently there is no way to do it with a plain SCNMaterial, I just tried to use a MDLMaterial instead, and then convert it to a SCNMaterial. There is a method in the Apple documentation for this: convenience init(MDLMaterial mdlMaterial: MDLMaterial) But I keep getting an error: /Users/ramy/Documents/Swift/Space Shooter/Space Shooter/Util.swift:50:26: Incorrect argument label in call (have 'MDLMaterial:', expected 'coder:') It doesn't seem to find the method. I tried in Objective-C and it still doesn't find it. Edit I was already importing

I'm trying to load a .dae file into SCNScene, using the following code: let solutionScene = SCNScene(named: "art.scnassets/level1.dae") print(solutionScene?.rootNode) // prints nil solutionNode = solutionScene?.rootNode.childNode(withName: "level1", recursively: true) I exported the .dae file from Blender as COLLADA with default settings, contains just a one simple object. When i click on the .dae file in my art.scnassets folder in XCode, it opens without problem and i can see the geometry, camera etc. I just can't get it loaded in the SCNScene. Is there anything i missed either on Blender

I am importing a simple dae file. I want some of the nodes to be a subclass of SCNNode - MySCNNode. MySCNNode *node = [scnView.scene.rootNode childNodeWithName:@"Box1" recursively:YES]; //additional initialization goes here Tried casting to (MySCNNode *) too. But this is not working. "node" is still an SCNNode. Why? I need to add a few properties and methods to SCNNode. So I subclassed SCNNode. I want the nodes from the scene(imported from a dae) to have the properties and behaviour. The nodes from the scene is always SCNNode. I want it to be of class MySCNNode. I understand needing a subclass

I'm trying to rotate a node by SCNAction , but it rotates relative to parent’s coordinate space. Is it possible to rotate a node relative local's coordinate system? Sure. You can obtain parent's space coordinates for rotation axis with convertVector method. For example, this action will do 180 degrees rotation around local x-axis: SCNAction.rotate(by: .pi, around: node.convertVector(SCNVector3(1, 0, 0), to: node.parent), duration: TimeInterval(5)) Have you tried: [node runAction:[SCNAction rotateByX:0 y:1 z:0 duration:5.0]]; //Rotates the node along the y axis for 5 seconds. 来源： https:/

In trying to serialize an array of float3 objects with the basic JSONEncoder, it's revealed that float3 does not conform to the Codable protocol, so this cannot be done. I tried to write a basic extension as suggested in Encoding and Decoding Custom Types as seen below, but the error 'self' used before all stored properties are initialized is rendered for each of the assignment lines in the init. I assume this is because the compiler is not sure that Float.self is defined prior to the initialization of float3, but I'm not sure how to resolve this. Further, the end of the init says Return from