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A simple iOS 8 Scene Kit example using C# and Xamarin
using System;
using MonoTouch.UIKit;
using MonoTouch.SceneKit;
using MonoTouch.Foundation;
namespace HelloSceneKit
{
public class HelloSceneKitController : UIViewController
{
SCNView sceneView;
SCNScene scene;
SCNCamera camera;
SCNNode cameraNode;
SCNLight ambientLight;
SCNNode ambientLightNode;
SCNSphere sphere;
SCNNode sphereNode;
SCNMaterial material;
UIButton animateButton;
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
animateButton = UIButton.FromType (UIButtonType.System);
animateButton.SetTitle ("Animate", UIControlState.Normal);
animateButton.Frame = new System.Drawing.RectangleF (0, 0, 100, 50);
animateButton.TouchUpInside += (sender, e) => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 2.0;
sphereNode.Rotation = new SCNVector4 (0, 1, 0, (float)Math.PI * 4);
material.Shininess = 0.1f;
SCNTransaction.Commit ();
};
scene = SCNScene.Create ();
sceneView = new SCNView (View.Frame);
sceneView.AutoresizingMask = UIViewAutoresizing.All;
sceneView.Scene = scene;
// camera
camera = new SCNCamera {
XFov = 40,
YFov = 40
};
cameraNode = new SCNNode {
Camera = camera,
Position = new SCNVector3 (0, 0, 40)
};
scene.RootNode.AddChildNode (cameraNode);
// sphere
sphere = SCNSphere.Create (10.0f);
sphereNode = SCNNode.FromGeometry (sphere);
sphereNode.Position = new SCNVector3 (0, 0, 0);
scene.RootNode.AddChildNode (sphereNode);
// ambient light
ambientLight = SCNLight.Create ();
ambientLightNode = SCNNode.Create ();
ambientLight.LightType = SCNLightType.Ambient;
ambientLight.Color = UIColor.Purple;
ambientLightNode.Light = ambientLight;
scene.RootNode.AddChildNode (ambientLightNode);
// diffuse lights
scene.RootNode.AddChildNode (CreateDiffuseLightNode (UIColor.Blue, new SCNVector3 (-40, 40, 60), SCNLightType.Omni));
scene.RootNode.AddChildNode (CreateDiffuseLightNode (UIColor.Yellow, new SCNVector3 (20, 20, -70), SCNLightType.Omni));
scene.RootNode.AddChildNode (CreateDiffuseLightNode (UIColor.Red, new SCNVector3 (20, -20, 40), SCNLightType.Omni));
scene.RootNode.AddChildNode (CreateDiffuseLightNode (UIColor.Green, new SCNVector3 (-20, -40, 70), SCNLightType.Omni));
// material
material = SCNMaterial.Create ();
material.Diffuse.Contents = UIImage.FromFile ("monkey.png");
material.Specular.Contents = UIColor.White;
sphere.Materials = new SCNMaterial[] { material };
sceneView.AllowsCameraControl = true;
View.AddSubview (sceneView);
View.AddSubview (animateButton);
}
SCNNode CreateDiffuseLightNode (UIColor color, SCNVector3 position, NSString lightType)
{
var light = SCNLight.Create ();
var lightNode = SCNNode.Create ();
light.LightType = lightType;
light.Color = color;
lightNode.Light = light;
lightNode.Position = position;
return lightNode;
}
}
}
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