GVRSCNRenderer

Combines Google Cardboard with SceneKit Rendering and ARKit World Tracking.
Combining ARKit with Google Cardboard enables six degrees of freedom (rotation and translation) in VR:

Installation

GVRSCNRenderer can be installed as a dependency using CocoaPods:

target 'Your-App-Name' do
	use_frameworks!
	pod 'GVRSCNRenderer'
end

Usage

Builds on top of GVRRenderer from GVRKit, which is part of the Google VR SDK for iOS.

Basic Setup

import GVRKit
import GVRSCNRenderer

// Create scene:
let scene: SCNScene = ...

// For SceneKit Rendering without world tracking:
let renderer = GVRSCNRenderer(scene: scene)

// For 6DOF Tracking:
let renderer = GVRSCNARTrackingRenderer(scene: scene)

// Create Cardboard view and pass renderer
let view = GVRRendererView(renderer: renderer)

Event Handling

Cardboard trigger events can be handled by the interaction delegate:

renderer.interactionDelegate = yourEventHandler

extension YourEventHandler: GVRSCNInteractionDelegate {
	func didTrigger(_ renderer: GVRSCNRenderer, headTransform: SCNMatrix4) {
		// Handle trigger event
	}
}

Render Loop Customization

The render loop can be customized using a SCNSceneRendererDelegate:

renderer.rendererDelegate = yourRendererDelegate

extension YourRendererDelegate: SCNSceneRendererDelegate {
	// ...
}

Showing Tracking Features

Tracking features can be shown to signal nearby objects in the real world to the user to avoid collisions (GVRSCNARTrackingRenderer only):

renderer.showsTrackingFeatures = true

Customizing feature indicators:

// Set tracking feature size in meters (e.g. 0.001 == 1mm)
renderer.trackingFeatureSize = ...

// Set tracking feature material
renderer.trackingFeatureMaterial = ...

3D Model in demo GIF: Rempart Walls scenery 1 - Fougères castle by noxfcna is licensed under CC Attribution