scenekit

I am wondering if there is a way to write text along a surface of a sphere object in SceneKit. I know I put a texture on the surface and achieve this kind of effect if I have an image, but I want to know if I can just add text dynamically somehow over the surface of the sphere. Any idea? EDIT: This works: let layer = CALayer() layer.frame = CGRectMake(0, 0, 100, 100) layer.backgroundColor = UIColor.orangeColor().CGColor var textLayer = CATextLayer() textLayer.frame = layer.bounds textLayer.fontSize = layer.bounds.size.height textLayer.string = "Test" textLayer.alignmentMode = kCAAlignmentLeft

I am applying a force and a torque on an node. This is my code: myNode?.physicsBody?.applyForce(SCNVector3Make(0, -6, 4), atPosition: SCNVector3Make(0, 1, -1), impulse: true) myNode?.physicsBody?.applyForce(SCNVector3Make(0, -2, 10), impulse: true) myNode?.physicsBody?.applyTorque(SCNVector4Make(4, 2, 2.5, 1.6), impulse: true) The object now falls down and moves from left to right afterwards. I want it fall down and move from right to the left(basically a reflection of the first movement across y-axis). I figured it out that there is very little I can do about the first 2 lines of code,

When I create a new Scene Kit Game using the Swift language, there is already some come which gives this result : I want to turn off the ambient light which is lighting the cube but I don't get how to do that since there isn't any light explicitly attached to any node. Her's the Game View Controller code : import SceneKit import QuartzCore class GameViewController: NSViewController { @IBOutlet var gameView: GameView override func awakeFromNib(){ // create a new scene let scene = SCNScene() // create and add a camera to the scene let cameraNode = SCNNode() cameraNode.camera = SCNCamera() scene

I'm using SceneKit on iOS and I have a geometry I want to render as a wireframe. So basically I want to draw only the lines, so no textures. I figured out that I could use the shaderModifiers property of the used SCNMaterial to accomplish this. Example of a shader modifier: material.shaderModifiers = [ SCNShaderModifierEntryPointFragment: "_output.color.rgb = vec3(1.0) - _output.color.rgb;" ] This example apparently simply inverts the output colors. I know nothing about this 'GLSL' language I have to use for the shader fragment. Can anybody tell me what code I should use as the shader fragment

I have just upgraded my Xcode to 6.1 an am now getting a strange compilation error. 'init()' is unavailable: superseded by import of -[NSObject init] I am subclassing SCNNode and have a optional references to other classes of the same type I am defining. i.e. import UIKit import SceneKit class BayNode: SCNNode { var leftBay:BayNode? var rightBay:BayNode? func addLeftBay() { leftBay = BayNode() // 'init()' is unavailable: superseded by import of -[NSObject init] } } Does anybody know how I can resolve this. Many Thanks I have same problem, one way I found to suppress the error is to explicitly