SceneKit Changes for Objective-C

	Declaration
From	+ (SCNAction )customActionWithDuration:(NSTimeInterval)seconds actionBlock:(void (^)(SCNNode node, CGFloat elapsedTime))block
To	+ (SCNAction * _Nonnull)customActionWithDuration:(NSTimeInterval)seconds actionBlock:(void (^ _Nonnull)(SCNNode * _Nonnull node, CGFloat elapsedTime))block

Declaration

From

+ (SCNAction *)customActionWithDuration:(NSTimeInterval)seconds actionBlock:(void (^)(SCNNode *node, CGFloat elapsedTime))block

+ (SCNAction * _Nonnull)customActionWithDuration:(NSTimeInterval)seconds actionBlock:(void (^ _Nonnull)(SCNNode * _Nonnull node, CGFloat elapsedTime))block

Modified +[SCNAction fadeInWithDuration:]

	Declaration
From	+ (SCNAction *)fadeInWithDuration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)fadeInWithDuration:(NSTimeInterval)sec

Modified +[SCNAction fadeOpacityBy:duration:]

	Declaration
From	+ (SCNAction *)fadeOpacityBy:(CGFloat)factor duration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)fadeOpacityBy:(CGFloat)factor duration:(NSTimeInterval)sec

Modified +[SCNAction fadeOpacityTo:duration:]

	Declaration
From	+ (SCNAction *)fadeOpacityTo:(CGFloat)opacity duration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)fadeOpacityTo:(CGFloat)opacity duration:(NSTimeInterval)sec

Modified +[SCNAction fadeOutWithDuration:]

	Declaration
From	+ (SCNAction *)fadeOutWithDuration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)fadeOutWithDuration:(NSTimeInterval)sec

Modified +[SCNAction group:]

	Declaration
From	+ (SCNAction )group:(NSArray )actions
To	+ (SCNAction * _Nonnull)group:(NSArray<SCNAction > _Nonnull)actions

Modified +[SCNAction javaScriptActionWithScript:duration:]

	Declaration
From	+ (SCNAction )javaScriptActionWithScript:(NSString )script duration:(NSTimeInterval)seconds
To	+ (SCNAction * _Nonnull)javaScriptActionWithScript:(NSString * _Nonnull)script duration:(NSTimeInterval)seconds

Declaration

From

+ (SCNAction *)javaScriptActionWithScript:(NSString *)script duration:(NSTimeInterval)seconds

+ (SCNAction * _Nonnull)javaScriptActionWithScript:(NSString * _Nonnull)script duration:(NSTimeInterval)seconds

Modified +[SCNAction moveBy:duration:]

	Declaration
From	+ (SCNAction *)moveBy:(SCNVector3)delta duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)moveBy:(SCNVector3)delta duration:(NSTimeInterval)duration

Modified +[SCNAction moveByX:y:z:duration:]

	Declaration
From	+ (SCNAction *)moveByX:(CGFloat)deltaX y:(CGFloat)deltaY z:(CGFloat)deltaZ duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)moveByX:(CGFloat)deltaX y:(CGFloat)deltaY z:(CGFloat)deltaZ duration:(NSTimeInterval)duration

Declaration

From

+ (SCNAction *)moveByX:(CGFloat)deltaX y:(CGFloat)deltaY z:(CGFloat)deltaZ duration:(NSTimeInterval)duration

+ (SCNAction * _Nonnull)moveByX:(CGFloat)deltaX y:(CGFloat)deltaY z:(CGFloat)deltaZ duration:(NSTimeInterval)duration

Modified +[SCNAction moveTo:duration:]

	Declaration
From	+ (SCNAction *)moveTo:(SCNVector3)location duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)moveTo:(SCNVector3)location duration:(NSTimeInterval)duration

Modified +[SCNAction removeFromParentNode]

	Declaration
From	+ (SCNAction *)removeFromParentNode
To	+ (SCNAction * _Nonnull)removeFromParentNode

Modified +[SCNAction repeatAction:count:]

	Declaration
From	+ (SCNAction )repeatAction:(SCNAction )action count:(NSUInteger)count
To	+ (SCNAction * _Nonnull)repeatAction:(SCNAction * _Nonnull)action count:(NSUInteger)count

Modified +[SCNAction repeatActionForever:]

	Declaration
From	+ (SCNAction )repeatActionForever:(SCNAction )action
To	+ (SCNAction * _Nonnull)repeatActionForever:(SCNAction * _Nonnull)action

Modified -[SCNAction reversedAction]

	Declaration
From	- (SCNAction *)reversedAction
To	- (SCNAction * _Nonnull)reversedAction

Modified +[SCNAction rotateByAngle:aroundAxis:duration:]

	Declaration
From	+ (SCNAction *)rotateByAngle:(CGFloat)angle aroundAxis:(SCNVector3)axis duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)rotateByAngle:(CGFloat)angle aroundAxis:(SCNVector3)axis duration:(NSTimeInterval)duration

Declaration

From

+ (SCNAction *)rotateByAngle:(CGFloat)angle aroundAxis:(SCNVector3)axis duration:(NSTimeInterval)duration

+ (SCNAction * _Nonnull)rotateByAngle:(CGFloat)angle aroundAxis:(SCNVector3)axis duration:(NSTimeInterval)duration

Modified +[SCNAction rotateByX:y:z:duration:]

	Declaration
From	+ (SCNAction *)rotateByX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)rotateByX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

Declaration

From

+ (SCNAction *)rotateByX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

+ (SCNAction * _Nonnull)rotateByX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

Modified +[SCNAction rotateToAxisAngle:duration:]

	Declaration
From	+ (SCNAction *)rotateToAxisAngle:(SCNVector4)axisAngle duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)rotateToAxisAngle:(SCNVector4)axisAngle duration:(NSTimeInterval)duration

Modified +[SCNAction rotateToX:y:z:duration:]

	Declaration
From	+ (SCNAction *)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration
To	+ (SCNAction * _Nonnull)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

Declaration

From

+ (SCNAction *)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

+ (SCNAction * _Nonnull)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration

Modified +[SCNAction rotateToX:y:z:duration:shortestUnitArc:]

	Declaration
From	+ (SCNAction *)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration shortestUnitArc:(BOOL)shortestUnitArc
To	+ (SCNAction * _Nonnull)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration shortestUnitArc:(BOOL)shortestUnitArc

Declaration

From

+ (SCNAction *)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration shortestUnitArc:(BOOL)shortestUnitArc

+ (SCNAction * _Nonnull)rotateToX:(CGFloat)xAngle y:(CGFloat)yAngle z:(CGFloat)zAngle duration:(NSTimeInterval)duration shortestUnitArc:(BOOL)shortestUnitArc

Modified +[SCNAction runBlock:]

	Declaration
From	+ (SCNAction )runBlock:(void (^)(SCNNode node))block
To	+ (SCNAction * _Nonnull)runBlock:(void (^ _Nonnull)(SCNNode * _Nonnull node))block

Modified +[SCNAction runBlock:queue:]

	Declaration
From	+ (SCNAction )runBlock:(void (^)(SCNNode node))block queue:(dispatch_queue_t)queue
To	+ (SCNAction * _Nonnull)runBlock:(void (^ _Nonnull)(SCNNode * _Nonnull node))block queue:(dispatch_queue_t _Nonnull)queue

Declaration

From

+ (SCNAction *)runBlock:(void (^)(SCNNode *node))block queue:(dispatch_queue_t)queue

+ (SCNAction * _Nonnull)runBlock:(void (^ _Nonnull)(SCNNode * _Nonnull node))block queue:(dispatch_queue_t _Nonnull)queue

Modified +[SCNAction scaleBy:duration:]

	Declaration
From	+ (SCNAction *)scaleBy:(CGFloat)scale duration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)scaleBy:(CGFloat)scale duration:(NSTimeInterval)sec

Modified +[SCNAction scaleTo:duration:]

	Declaration
From	+ (SCNAction *)scaleTo:(CGFloat)scale duration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)scaleTo:(CGFloat)scale duration:(NSTimeInterval)sec

Modified +[SCNAction sequence:]

	Declaration
From	+ (SCNAction )sequence:(NSArray )actions
To	+ (SCNAction * _Nonnull)sequence:(NSArray<SCNAction > _Nonnull)actions

Modified SCNAction.timingFunction

	Declaration
From	@property(nonatomic) SCNActionTimingFunction timingFunction
To	@property(nonatomic, nullable) SCNActionTimingFunction timingFunction

Modified +[SCNAction waitForDuration:]

	Declaration
From	+ (SCNAction *)waitForDuration:(NSTimeInterval)sec
To	+ (SCNAction * _Nonnull)waitForDuration:(NSTimeInterval)sec

Modified +[SCNAction waitForDuration:withRange:]

	Declaration
From	+ (SCNAction *)waitForDuration:(NSTimeInterval)sec withRange:(NSTimeInterval)durationRange
To	+ (SCNAction * _Nonnull)waitForDuration:(NSTimeInterval)sec withRange:(NSTimeInterval)durationRange

Modified -[SCNActionable actionForKey:]

	Declaration
From	- (SCNAction )actionForKey:(NSString )key
To	- (SCNAction * _Nullable)actionForKey:(NSString * _Nonnull)key

Modified -[SCNActionable removeActionForKey:]

	Declaration
From	- (void)removeActionForKey:(NSString *)key
To	- (void)removeActionForKey:(NSString * _Nonnull)key

Modified -[SCNActionable runAction:]

	Declaration
From	- (void)runAction:(SCNAction *)action
To	- (void)runAction:(SCNAction * _Nonnull)action

Modified -[SCNActionable runAction:completionHandler:]

	Declaration
From	- (void)runAction:(SCNAction *)action completionHandler:(void (^)(void))block
To	- (void)runAction:(SCNAction * _Nonnull)action completionHandler:(void (^ _Nullable)(void))block

Modified -[SCNActionable runAction:forKey:]

	Declaration
From	- (void)runAction:(SCNAction )action forKey:(NSString )key
To	- (void)runAction:(SCNAction * _Nonnull)action forKey:(NSString * _Nullable)key

Modified -[SCNActionable runAction:forKey:completionHandler:]

	Declaration
From	- (void)runAction:(SCNAction )action forKey:(NSString )key completionHandler:(void (^)(void))block
To	- (void)runAction:(SCNAction * _Nonnull)action forKey:(NSString * _Nullable)key completionHandler:(void (^ _Nullable)(void))block

Declaration

From

- (void)runAction:(SCNAction *)action forKey:(NSString *)key completionHandler:(void (^)(void))block

- (void)runAction:(SCNAction * _Nonnull)action forKey:(NSString * _Nullable)key completionHandler:(void (^ _Nullable)(void))block

SCNAnimation.h

Removed -[SCNAnimatable animationKeys]

Added SCNAnimatable.animationKeys

Modified CAAnimation.animationEvents

	Declaration
From	@property(nonatomic, retain) NSArray *animationEvents
To	@property(nonatomic, copy, nullable) NSArray<SCNAnimationEvent > animationEvents

Modified -[SCNAnimatable addAnimation:forKey:]

	Declaration
From	- (void)addAnimation:(CAAnimation )animation forKey:(NSString )key
To	- (void)addAnimation:(CAAnimation * _Nonnull)animation forKey:(NSString * _Nullable)key

Modified -[SCNAnimatable animationForKey:]

	Declaration
From	- (CAAnimation )animationForKey:(NSString )key
To	- (CAAnimation * _Nullable)animationForKey:(NSString * _Nonnull)key

Modified -[SCNAnimatable isAnimationForKeyPaused:]

	Declaration
From	- (BOOL)isAnimationForKeyPaused:(NSString *)key
To	- (BOOL)isAnimationForKeyPaused:(NSString * _Nonnull)key

Modified -[SCNAnimatable pauseAnimationForKey:]

	Declaration
From	- (void)pauseAnimationForKey:(NSString *)key
To	- (void)pauseAnimationForKey:(NSString * _Nonnull)key

Modified -[SCNAnimatable removeAnimationForKey:]

	Declaration
From	- (void)removeAnimationForKey:(NSString *)key
To	- (void)removeAnimationForKey:(NSString * _Nonnull)key

Modified -[SCNAnimatable removeAnimationForKey:fadeOutDuration:]

	Declaration
From	- (void)removeAnimationForKey:(NSString *)key fadeOutDuration:(CGFloat)duration
To	- (void)removeAnimationForKey:(NSString * _Nonnull)key fadeOutDuration:(CGFloat)duration

Modified -[SCNAnimatable resumeAnimationForKey:]

	Declaration
From	- (void)resumeAnimationForKey:(NSString *)key
To	- (void)resumeAnimationForKey:(NSString * _Nonnull)key

Modified +[SCNAnimationEvent animationEventWithKeyTime:block:]

	Declaration
From	+ (instancetype)animationEventWithKeyTime:(CGFloat)time block:(SCNAnimationEventBlock)eventBlock
To	+ (instancetype _Nonnull)animationEventWithKeyTime:(CGFloat)time block:(SCNAnimationEventBlock _Nonnull)eventBlock

Declaration

From

+ (instancetype)animationEventWithKeyTime:(CGFloat)time block:(SCNAnimationEventBlock)eventBlock

+ (instancetype _Nonnull)animationEventWithKeyTime:(CGFloat)time block:(SCNAnimationEventBlock _Nonnull)eventBlock

SCNAudioSource.h (Added)

Added SCNAudioPlayer

Added SCNAudioPlayer.audioNode

Added +[SCNAudioPlayer audioPlayerWithAVAudioNode:]

Added +[SCNAudioPlayer audioPlayerWithSource:]

Added SCNAudioPlayer.audioSource

Added SCNAudioPlayer.didFinishPlayback

Added -[SCNAudioPlayer initWithAVAudioNode:]

Added -[SCNAudioPlayer initWithSource:]

Added SCNAudioPlayer.willStartPlayback

Added SCNAudioSource

Added +[SCNAudioSource audioSourceNamed:]

Added -[SCNAudioSource initWithFileNamed:]

Added -[SCNAudioSource initWithURL:]

Added -[SCNAudioSource load]

Added SCNAudioSource.loops

Added SCNAudioSource.positional

Added SCNAudioSource.rate

Added SCNAudioSource.reverbBlend

Added SCNAudioSource.shouldStream

Added SCNAudioSource.volume

Added -[SCNNode addAudioPlayer:]

Added SCNNode.audioPlayers

Added -[SCNNode removeAllAudioPlayers]

Added -[SCNNode removeAudioPlayer:]

Added SCNNode(SCNAudioSupport)

SCNBoundingVolume.h

Modified -[SCNBoundingVolume getBoundingBoxMin:max:]

	Declaration
From	- (BOOL)getBoundingBoxMin:(SCNVector3 )min max:(SCNVector3 )max
To	- (BOOL)getBoundingBoxMin:(SCNVector3 * _Nullable)min max:(SCNVector3 * _Nullable)max

Modified -[SCNBoundingVolume getBoundingSphereCenter:radius:]

	Declaration
From	- (BOOL)getBoundingSphereCenter:(SCNVector3 )center radius:(CGFloat )radius
To	- (BOOL)getBoundingSphereCenter:(SCNVector3 * _Nullable)center radius:(CGFloat * _Nullable)radius

Modified -[SCNBoundingVolume setBoundingBoxMin:max:]

	Declaration
From	- (void)setBoundingBoxMin:(SCNVector3 )min max:(SCNVector3 )max
To	- (void)setBoundingBoxMin:(SCNVector3 * _Nullable)min max:(SCNVector3 * _Nullable)max

SCNCamera.h

Modified +[SCNCamera camera]

	Declaration
From	+ (instancetype)camera
To	+ (instancetype _Nonnull)camera

Modified SCNCamera.name

	Declaration
From	@property(nonatomic, copy) NSString *name
To	@property(nonatomic, copy, nullable) NSString *name

SCNConstraint.h

Added SCNBillboardConstraint

Added +[SCNBillboardConstraint billboardConstraint]

Added SCNBillboardConstraint.freeAxes

Added -[SCNIKConstraint initWithChainRootNode:]

Added SCNBillboardAxis

Added SCNBillboardAxisAll

Added SCNBillboardAxisX

Added SCNBillboardAxisY

Added SCNBillboardAxisZ

Modified SCNIKConstraint.chainRootNode

	Declaration
From	@property(nonatomic, readonly) SCNNode *chainRootNode
To	@property(nonatomic, readonly, nonnull) SCNNode *chainRootNode

Modified +[SCNIKConstraint inverseKinematicsConstraintWithChainRootNode:]

	Declaration
From	+ (instancetype)inverseKinematicsConstraintWithChainRootNode:(SCNNode *)chainRootNode
To	+ (instancetype _Nonnull)inverseKinematicsConstraintWithChainRootNode:(SCNNode * _Nonnull)chainRootNode

Modified -[SCNIKConstraint maxAllowedRotationAngleForJoint:]

	Declaration
From	- (CGFloat)maxAllowedRotationAngleForJoint:(SCNNode *)node
To	- (CGFloat)maxAllowedRotationAngleForJoint:(SCNNode * _Nonnull)node

Modified -[SCNIKConstraint setMaxAllowedRotationAngle:forJoint:]

	Declaration
From	- (void)setMaxAllowedRotationAngle:(CGFloat)angle forJoint:(SCNNode *)node
To	- (void)setMaxAllowedRotationAngle:(CGFloat)angle forJoint:(SCNNode * _Nonnull)node

Modified +[SCNLookAtConstraint lookAtConstraintWithTarget:]

	Declaration
From	+ (instancetype)lookAtConstraintWithTarget:(SCNNode *)target
To	+ (instancetype _Nonnull)lookAtConstraintWithTarget:(SCNNode * _Nonnull)target

Modified SCNLookAtConstraint.target

	Declaration
From	@property(nonatomic, readonly) SCNNode *target
To	@property(nonatomic, readonly, nonnull) SCNNode *target

Modified +[SCNTransformConstraint transformConstraintInWorldSpace:withBlock:]

Declaration

From

+ (instancetype)transformConstraintInWorldSpace:(BOOL)world withBlock:(SCNMatrix4 (^)(SCNNode *node, SCNMatrix4 transform))block

+ (instancetype _Nonnull)transformConstraintInWorldSpace:(BOOL)world withBlock:(SCNMatrix4 (^ _Nonnull)(SCNNode * _Nonnull node, SCNMatrix4 transform))block

SCNGeometry.h

Added SCNGeometry.geometryElements

Added SCNGeometry.geometrySources

Added +[SCNGeometrySource geometrySourceWithBuffer:vertexFormat:semantic:vertexCount:dataOffset:dataStride:]

Modified SCNGeometry.edgeCreasesElement

	Declaration
From	@property(nonatomic, retain) SCNGeometryElement *edgeCreasesElement
To	@property(nonatomic, retain, nullable) SCNGeometryElement *edgeCreasesElement

Modified SCNGeometry.edgeCreasesSource

	Declaration
From	@property(nonatomic, retain) SCNGeometrySource *edgeCreasesSource
To	@property(nonatomic, retain, nullable) SCNGeometrySource *edgeCreasesSource

Modified SCNGeometry.firstMaterial

	Declaration
From	@property(nonatomic, retain) SCNMaterial *firstMaterial
To	@property(nonatomic, retain, nullable) SCNMaterial *firstMaterial

Modified +[SCNGeometry geometry]

	Declaration
From	+ (instancetype)geometry
To	+ (instancetype _Nonnull)geometry

Modified -[SCNGeometry geometryElementAtIndex:]

	Declaration
From	- (SCNGeometryElement *)geometryElementAtIndex:(NSInteger)elementIndex
To	- (SCNGeometryElement * _Nonnull)geometryElementAtIndex:(NSInteger)elementIndex

Modified -[SCNGeometry geometrySourcesForSemantic:]

	Declaration
From	- (NSArray )geometrySourcesForSemantic:(NSString )semantic
To	- (NSArray<SCNGeometrySource > _Nonnull)geometrySourcesForSemantic:(NSString * _Nonnull)semantic

Modified +[SCNGeometry geometryWithSources:elements:]

Declaration

From

+ (instancetype)geometryWithSources:(NSArray *)sources elements:(NSArray *)elements

+ (instancetype _Nonnull)geometryWithSources:(NSArray<SCNGeometrySource *> * _Nonnull)sources elements:(NSArray<SCNGeometryElement *> * _Nonnull)elements

Modified -[SCNGeometry insertMaterial:atIndex:]

	Declaration
From	- (void)insertMaterial:(SCNMaterial *)material atIndex:(NSUInteger)index
To	- (void)insertMaterial:(SCNMaterial * _Nonnull)material atIndex:(NSUInteger)index

Modified SCNGeometry.levelsOfDetail

	Declaration
From	@property(nonatomic, copy) NSArray *levelsOfDetail
To	@property(nonatomic, copy, nullable) NSArray<SCNLevelOfDetail > levelsOfDetail

Modified SCNGeometry.materials

	Declaration
From	@property(nonatomic, copy) NSArray *materials
To	@property(nonatomic, copy, nonnull) NSArray<SCNMaterial > materials

Modified -[SCNGeometry materialWithName:]

	Declaration
From	- (SCNMaterial )materialWithName:(NSString )name
To	- (SCNMaterial * _Nullable)materialWithName:(NSString * _Nonnull)name

Modified SCNGeometry.name

	Declaration
From	@property(nonatomic, copy) NSString *name
To	@property(nonatomic, copy, nullable) NSString *name

Modified -[SCNGeometry replaceMaterialAtIndex:withMaterial:]

	Declaration
From	- (void)replaceMaterialAtIndex:(NSUInteger)index withMaterial:(SCNMaterial *)material
To	- (void)replaceMaterialAtIndex:(NSUInteger)index withMaterial:(SCNMaterial * _Nonnull)material

Modified SCNGeometryElement.data

	Declaration
From	@property(nonatomic, readonly) NSData *data
To	@property(nonatomic, readonly, nonnull) NSData *data

Modified +[SCNGeometryElement geometryElementWithData:primitiveType:primitiveCount:bytesPerIndex:]

Declaration

From

+ (instancetype)geometryElementWithData:(NSData *)data primitiveType:(SCNGeometryPrimitiveType)primitiveType primitiveCount:(NSInteger)primitiveCount bytesPerIndex:(NSInteger)bytesPerIndex

+ (instancetype _Nonnull)geometryElementWithData:(NSData * _Nullable)data primitiveType:(SCNGeometryPrimitiveType)primitiveType primitiveCount:(NSInteger)primitiveCount bytesPerIndex:(NSInteger)bytesPerIndex

Modified SCNGeometrySource.data

	Declaration
From	@property(nonatomic, readonly) NSData *data
To	@property(nonatomic, readonly, nonnull) NSData *data

Modified +[SCNGeometrySource geometrySourceWithData:semantic:vectorCount:floatComponents:componentsPerVector:bytesPerComponent:dataOffset:dataStride:]

Declaration

From

+ (instancetype)geometrySourceWithData:(NSData *)data semantic:(NSString *)semantic vectorCount:(NSInteger)vectorCount floatComponents:(BOOL)floatComponents componentsPerVector:(NSInteger)componentsPerVector bytesPerComponent:(NSInteger)bytesPerComponent dataOffset:(NSInteger)offset dataStride:(NSInteger)stride

+ (instancetype _Nonnull)geometrySourceWithData:(NSData * _Nonnull)data semantic:(NSString * _Nonnull)semantic vectorCount:(NSInteger)vectorCount floatComponents:(BOOL)floatComponents componentsPerVector:(NSInteger)componentsPerVector bytesPerComponent:(NSInteger)bytesPerComponent dataOffset:(NSInteger)offset dataStride:(NSInteger)stride

Modified +[SCNGeometrySource geometrySourceWithNormals:count:]

Declaration

From

+ (instancetype)geometrySourceWithNormals:(const SCNVector3 *)normals count:(NSInteger)count

+ (instancetype _Nonnull)geometrySourceWithNormals:(const SCNVector3 * _Nonnull)normals count:(NSInteger)count

Modified +[SCNGeometrySource geometrySourceWithTextureCoordinates:count:]

Declaration

From

+ (instancetype)geometrySourceWithTextureCoordinates:(const CGPoint *)texcoord count:(NSInteger)count

+ (instancetype _Nonnull)geometrySourceWithTextureCoordinates:(const CGPoint * _Nonnull)texcoord count:(NSInteger)count

Modified +[SCNGeometrySource geometrySourceWithVertices:count:]

Declaration

From

+ (instancetype)geometrySourceWithVertices:(const SCNVector3 *)vertices count:(NSInteger)count

+ (instancetype _Nonnull)geometrySourceWithVertices:(const SCNVector3 * _Nonnull)vertices count:(NSInteger)count

Modified SCNGeometrySource.semantic

	Declaration
From	@property(nonatomic, readonly) NSString *semantic
To	@property(nonatomic, readonly, nonnull) NSString *semantic

SCNJavascript.h

Modified SCNExportJavaScriptModule()

	Declaration
From	void SCNExportJavaScriptModule ( JSContext *context );
To	void SCNExportJavaScriptModule ( JSContext * _Nonnull context );

SCNLayer.h

Modified SCNLayer.scene

	Declaration
From	@property(nonatomic, retain) SCNScene *scene
To	@property(nonatomic, retain, nullable) SCNScene *scene

SCNLevelOfDetail.h

Modified SCNLevelOfDetail.geometry

	Declaration
From	@property(readonly) SCNGeometry *geometry
To	@property(readonly, nullable) SCNGeometry *geometry

Modified +[SCNLevelOfDetail levelOfDetailWithGeometry:screenSpaceRadius:]

Declaration

From

+ (instancetype)levelOfDetailWithGeometry:(SCNGeometry *)geometry screenSpaceRadius:(CGFloat)radius

+ (instancetype _Nonnull)levelOfDetailWithGeometry:(SCNGeometry * _Nullable)geometry screenSpaceRadius:(CGFloat)radius

Modified +[SCNLevelOfDetail levelOfDetailWithGeometry:worldSpaceDistance:]

Declaration

From

+ (instancetype)levelOfDetailWithGeometry:(SCNGeometry *)geometry worldSpaceDistance:(CGFloat)distance

+ (instancetype _Nonnull)levelOfDetailWithGeometry:(SCNGeometry * _Nullable)geometry worldSpaceDistance:(CGFloat)distance

SCNLight.h

Modified -[SCNLight attributeForKey:]

	Declaration
From	- (id)attributeForKey:(NSString *)key
To	- (id _Nullable)attributeForKey:(NSString * _Nonnull)key

Modified SCNLight.color

	Declaration
From	@property(nonatomic, retain) id color
To	@property(nonatomic, retain, nonnull) id color

Modified SCNLight.gobo

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *gobo
To	@property(nonatomic, readonly, nullable) SCNMaterialProperty *gobo

Modified +[SCNLight light]

	Declaration
From	+ (instancetype)light
To	+ (instancetype _Nonnull)light

Modified SCNLight.name

	Declaration
From	@property(nonatomic, copy) NSString *name
To	@property(nonatomic, copy, nullable) NSString *name

Modified -[SCNLight setAttribute:forKey:]

	Declaration
From	- (void)setAttribute:(id)attribute forKey:(NSString *)key
To	- (void)setAttribute:(id _Nullable)attribute forKey:(NSString * _Nonnull)key

Modified SCNLight.shadowColor

	Declaration
From	@property(nonatomic, retain) id shadowColor
To	@property(nonatomic, retain, nonnull) id shadowColor

Modified SCNLight.type

	Declaration
From	@property(nonatomic, copy) NSString *type
To	@property(nonatomic, copy, nonnull) NSString *type

SCNMaterial.h

Added SCNMaterial.ambientOcclusion

Added SCNMaterial.blendMode

Added SCNMaterial.selfIllumination

Added SCNBlendMode

Added SCNBlendModeAdd

Added SCNBlendModeAlpha

Added SCNBlendModeMultiply

Added SCNBlendModeReplace

Added SCNBlendModeScreen

Added SCNBlendModeSubtract

Modified SCNMaterial.ambient

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *ambient
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *ambient

Modified SCNMaterial.diffuse

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *diffuse
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *diffuse

Modified SCNMaterial.emission

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *emission
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *emission

Modified SCNMaterial.lightingModelName

	Declaration
From	@property(nonatomic, copy) NSString *lightingModelName
To	@property(nonatomic, copy, nonnull) NSString *lightingModelName

Modified +[SCNMaterial material]

	Declaration
From	+ (instancetype)material
To	+ (instancetype _Nonnull)material

Modified SCNMaterial.multiply

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *multiply
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *multiply

Modified SCNMaterial.name

	Declaration
From	@property(nonatomic, copy) NSString *name
To	@property(nonatomic, copy, nullable) NSString *name

Modified SCNMaterial.normal

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *normal
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *normal

Modified SCNMaterial.reflective

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *reflective
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *reflective

Modified SCNMaterial.specular

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *specular
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *specular

Modified SCNMaterial.transparent

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *transparent
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *transparent

SCNMaterialProperty.h

Removed SCNClamp

Removed SCNClampToBorder

Removed SCNLinearFiltering

Removed SCNMirror

Removed SCNNearestFiltering

Removed SCNNoFiltering

Removed SCNRepeat

Modified SCNMaterialProperty.borderColor

	Declaration
From	@property(nonatomic, retain) id borderColor
To	@property(nonatomic, retain, nullable) id borderColor

Modified SCNMaterialProperty.contents

	Declaration
From	@property(nonatomic, retain) id contents
To	@property(nonatomic, retain, nullable) id contents

Modified +[SCNMaterialProperty materialPropertyWithContents:]

	Declaration
From	+ (instancetype)materialPropertyWithContents:(id)contents
To	+ (instancetype _Nonnull)materialPropertyWithContents:(id _Nonnull)contents

SCNMorpher.h

Modified SCNMorpher.targets

	Declaration
From	@property(nonatomic, copy) NSArray *targets
To	@property(nonatomic, copy, nonnull) NSArray<SCNGeometry > targets

SCNNode.h

Modified -[SCNNode addChildNode:]

	Declaration
From	- (void)addChildNode:(SCNNode *)child
To	- (void)addChildNode:(SCNNode * _Nonnull)child

Modified SCNNode.camera

	Declaration
From	@property(nonatomic, retain) SCNCamera *camera
To	@property(nonatomic, retain, nullable) SCNCamera *camera

Modified SCNNode.childNodes

	Declaration
From	@property(nonatomic, readonly) NSArray *childNodes
To	@property(nonatomic, readonly, nonnull) NSArray<SCNNode > childNodes

Modified -[SCNNode childNodesPassingTest:]

Declaration

From

- (NSArray *)childNodesPassingTest:(BOOL (^)(SCNNode *child, BOOL *stop))predicate

- (NSArray<SCNNode *> * _Nonnull)childNodesPassingTest:(BOOL (^ _Nonnull)(SCNNode * _Nonnull child, BOOL * _Nonnull stop))predicate

Modified -[SCNNode childNodeWithName:recursively:]

	Declaration
From	- (SCNNode )childNodeWithName:(NSString )name recursively:(BOOL)recursively
To	- (SCNNode * _Nullable)childNodeWithName:(NSString * _Nonnull)name recursively:(BOOL)recursively

Modified -[SCNNode clone]

	Declaration
From	- (id)clone
To	- (instancetype _Nonnull)clone

Modified SCNNode.constraints

	Declaration
From	@property(copy) NSArray *constraints
To	@property(copy, nullable) NSArray<SCNConstraint > constraints

Modified -[SCNNode convertPosition:fromNode:]

	Declaration
From	- (SCNVector3)convertPosition:(SCNVector3)position fromNode:(SCNNode *)node
To	- (SCNVector3)convertPosition:(SCNVector3)position fromNode:(SCNNode * _Nullable)node

Modified -[SCNNode convertPosition:toNode:]

	Declaration
From	- (SCNVector3)convertPosition:(SCNVector3)position toNode:(SCNNode *)node
To	- (SCNVector3)convertPosition:(SCNVector3)position toNode:(SCNNode * _Nullable)node

Modified -[SCNNode convertTransform:fromNode:]

	Declaration
From	- (SCNMatrix4)convertTransform:(SCNMatrix4)transform fromNode:(SCNNode *)node
To	- (SCNMatrix4)convertTransform:(SCNMatrix4)transform fromNode:(SCNNode * _Nullable)node

Modified -[SCNNode convertTransform:toNode:]

	Declaration
From	- (SCNMatrix4)convertTransform:(SCNMatrix4)transform toNode:(SCNNode *)node
To	- (SCNMatrix4)convertTransform:(SCNMatrix4)transform toNode:(SCNNode * _Nullable)node

Modified -[SCNNode enumerateChildNodesUsingBlock:]

	Declaration
From	- (void)enumerateChildNodesUsingBlock:(void (^)(SCNNode child, BOOL stop))block
To	- (void)enumerateChildNodesUsingBlock:(void (^ _Nonnull)(SCNNode * _Nonnull child, BOOL * _Nonnull stop))block

Modified SCNNode.filters

	Declaration
From	@property(nonatomic, copy) NSArray *filters
To	@property(nonatomic, copy, nullable) NSArray<CIFilter > filters

Modified -[SCNNode flattenedClone]

	Declaration
From	- (SCNNode *)flattenedClone
To	- (instancetype _Nonnull)flattenedClone

Modified SCNNode.geometry

	Declaration
From	@property(nonatomic, retain) SCNGeometry *geometry
To	@property(nonatomic, retain, nullable) SCNGeometry *geometry

Modified -[SCNNode hitTestWithSegmentFromPoint:toPoint:options:]

Declaration

From

- (NSArray *)hitTestWithSegmentFromPoint:(SCNVector3)pointA toPoint:(SCNVector3)pointB options:(NSDictionary *)options

- (NSArray<SCNHitTestResult *> * _Nonnull)hitTestWithSegmentFromPoint:(SCNVector3)pointA toPoint:(SCNVector3)pointB options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNNode insertChildNode:atIndex:]

	Declaration
From	- (void)insertChildNode:(SCNNode *)child atIndex:(NSUInteger)index
To	- (void)insertChildNode:(SCNNode * _Nonnull)child atIndex:(NSUInteger)index

Modified SCNNode.light

	Declaration
From	@property(nonatomic, retain) SCNLight *light
To	@property(nonatomic, retain, nullable) SCNLight *light

Modified SCNNode.morpher

	Declaration
From	@property(nonatomic, retain) SCNMorpher *morpher
To	@property(nonatomic, retain, nullable) SCNMorpher *morpher

Modified SCNNode.name

	Declaration
From	@property(nonatomic, copy) NSString *name
To	@property(nonatomic, copy, nullable) NSString *name

Modified +[SCNNode node]

	Declaration
From	+ (instancetype)node
To	+ (instancetype _Nonnull)node

Modified +[SCNNode nodeWithGeometry:]

	Declaration
From	+ (SCNNode )nodeWithGeometry:(SCNGeometry )geometry
To	+ (SCNNode * _Nonnull)nodeWithGeometry:(SCNGeometry * _Nullable)geometry

Modified SCNNode.parentNode

	Declaration
From	@property(nonatomic, readonly) SCNNode *parentNode
To	@property(nonatomic, readonly, nullable) SCNNode *parentNode

Modified SCNNode.physicsBody

	Declaration
From	@property(nonatomic, retain) SCNPhysicsBody *physicsBody
To	@property(nonatomic, retain, nullable) SCNPhysicsBody *physicsBody

Modified SCNNode.physicsField

	Declaration
From	@property(nonatomic, retain) SCNPhysicsField *physicsField
To	@property(nonatomic, retain, nullable) SCNPhysicsField *physicsField

Modified SCNNode.presentationNode

	Declaration
From	- (SCNNode *)presentationNode
To	@property(nonatomic, readonly, nonnull) SCNNode *presentationNode

Modified SCNNode.rendererDelegate

	Declaration
From	@property(nonatomic, assign) id<SCNNodeRendererDelegate> rendererDelegate
To	@property(nonatomic, assign, nullable) id<SCNNodeRendererDelegate> rendererDelegate

Modified -[SCNNode replaceChildNode:with:]

	Declaration
From	- (void)replaceChildNode:(SCNNode )oldChild with:(SCNNode )newChild
To	- (void)replaceChildNode:(SCNNode * _Nonnull)oldChild with:(SCNNode * _Nonnull)newChild

Modified SCNNode.skinner

	Declaration
From	@property(nonatomic, retain) SCNSkinner *skinner
To	@property(nonatomic, retain, nullable) SCNSkinner *skinner

Modified -[SCNNodeRendererDelegate renderNode:renderer:arguments:]

Declaration

From

- (void)renderNode:(SCNNode *)node renderer:(SCNRenderer *)renderer arguments:(NSDictionary *)arguments

- (void)renderNode:(SCNNode * _Nonnull)node renderer:(SCNRenderer * _Nonnull)renderer arguments:(NSDictionary<NSString *,NSValue *> * _Nonnull)arguments

SCNParametricGeometry.h

Modified +[SCNBox boxWithWidth:height:length:chamferRadius:]

Declaration

From

+ (instancetype)boxWithWidth:(CGFloat)width height:(CGFloat)height length:(CGFloat)length chamferRadius:(CGFloat)chamferRadius

+ (instancetype _Nonnull)boxWithWidth:(CGFloat)width height:(CGFloat)height length:(CGFloat)length chamferRadius:(CGFloat)chamferRadius

Modified +[SCNCapsule capsuleWithCapRadius:height:]

	Declaration
From	+ (instancetype)capsuleWithCapRadius:(CGFloat)capRadius height:(CGFloat)height
To	+ (instancetype _Nonnull)capsuleWithCapRadius:(CGFloat)capRadius height:(CGFloat)height

Modified +[SCNCone coneWithTopRadius:bottomRadius:height:]

Declaration

From

+ (instancetype)coneWithTopRadius:(CGFloat)topRadius bottomRadius:(CGFloat)bottomRadius height:(CGFloat)height

+ (instancetype _Nonnull)coneWithTopRadius:(CGFloat)topRadius bottomRadius:(CGFloat)bottomRadius height:(CGFloat)height

Modified +[SCNCylinder cylinderWithRadius:height:]

	Declaration
From	+ (instancetype)cylinderWithRadius:(CGFloat)radius height:(CGFloat)height
To	+ (instancetype _Nonnull)cylinderWithRadius:(CGFloat)radius height:(CGFloat)height

Modified +[SCNFloor floor]

	Declaration
From	+ (instancetype)floor
To	+ (instancetype _Nonnull)floor

Modified +[SCNPlane planeWithWidth:height:]

	Declaration
From	+ (instancetype)planeWithWidth:(CGFloat)width height:(CGFloat)height
To	+ (instancetype _Nonnull)planeWithWidth:(CGFloat)width height:(CGFloat)height

Modified +[SCNPyramid pyramidWithWidth:height:length:]

	Declaration
From	+ (instancetype)pyramidWithWidth:(CGFloat)width height:(CGFloat)height length:(CGFloat)length
To	+ (instancetype _Nonnull)pyramidWithWidth:(CGFloat)width height:(CGFloat)height length:(CGFloat)length

Modified SCNShape.chamferProfile

	Declaration
From	@property(nonatomic, copy) NSBezierPath *chamferProfile
To	@property(nonatomic, copy, nullable) NSBezierPath *chamferProfile

Modified SCNShape.path

	Declaration
From	@property(nonatomic, copy) NSBezierPath *path
To	@property(nonatomic, copy, nullable) NSBezierPath *path

Modified +[SCNShape shapeWithPath:extrusionDepth:]

	Declaration
From	+ (instancetype)shapeWithPath:(NSBezierPath *)path extrusionDepth:(CGFloat)extrusionDepth
To	+ (instancetype _Nonnull)shapeWithPath:(NSBezierPath * _Nullable)path extrusionDepth:(CGFloat)extrusionDepth

Modified +[SCNSphere sphereWithRadius:]

	Declaration
From	+ (instancetype)sphereWithRadius:(CGFloat)radius
To	+ (instancetype _Nonnull)sphereWithRadius:(CGFloat)radius

Modified SCNText.alignmentMode

	Declaration
From	@property(nonatomic, copy) NSString *alignmentMode
To	@property(nonatomic, copy, nonnull) NSString *alignmentMode

Modified SCNText.chamferProfile

	Declaration
From	@property(nonatomic, copy) NSBezierPath *chamferProfile
To	@property(nonatomic, copy, nullable) NSBezierPath *chamferProfile

Modified SCNText.font

	Declaration
From	@property(nonatomic, retain) NSFont *font
To	@property(nonatomic, retain) NSFont * _Null_unspecified font

Modified SCNText.string

	Declaration
From	@property(nonatomic, copy) id string
To	@property(nonatomic, copy, nullable) id string

Modified +[SCNText textWithString:extrusionDepth:]

	Declaration
From	+ (instancetype)textWithString:(id)string extrusionDepth:(CGFloat)extrusionDepth
To	+ (instancetype _Nonnull)textWithString:(id _Nullable)string extrusionDepth:(CGFloat)extrusionDepth

Modified SCNText.truncationMode

	Declaration
From	@property(nonatomic, copy) NSString *truncationMode
To	@property(nonatomic, copy, nonnull) NSString *truncationMode

Modified +[SCNTorus torusWithRingRadius:pipeRadius:]

	Declaration
From	+ (instancetype)torusWithRingRadius:(CGFloat)ringRadius pipeRadius:(CGFloat)pipeRadius
To	+ (instancetype _Nonnull)torusWithRingRadius:(CGFloat)ringRadius pipeRadius:(CGFloat)pipeRadius

Modified +[SCNTube tubeWithInnerRadius:outerRadius:height:]

Declaration

From

+ (instancetype)tubeWithInnerRadius:(CGFloat)innerRadius outerRadius:(CGFloat)outerRadius height:(CGFloat)height

+ (instancetype _Nonnull)tubeWithInnerRadius:(CGFloat)innerRadius outerRadius:(CGFloat)outerRadius height:(CGFloat)height

SCNParticleSystem.h

Modified -[SCNNode addParticleSystem:]

	Declaration
From	- (void)addParticleSystem:(SCNParticleSystem *)system
To	- (void)addParticleSystem:(SCNParticleSystem * _Nonnull)system

Modified SCNNode.particleSystems

	Declaration
From	@property(readonly) NSArray *particleSystems
To	@property(readonly, nullable) NSArray<SCNParticleSystem > particleSystems

Modified -[SCNNode removeParticleSystem:]

	Declaration
From	- (void)removeParticleSystem:(SCNParticleSystem *)system
To	- (void)removeParticleSystem:(SCNParticleSystem * _Nonnull)system

Modified SCNParticlePropertyController.animation

	Declaration
From	@property(nonatomic, retain) CAAnimation *animation
To	@property(nonatomic, retain, nonnull) CAAnimation *animation

Modified +[SCNParticlePropertyController controllerWithAnimation:]

	Declaration
From	+ (instancetype)controllerWithAnimation:(CAAnimation *)animation
To	+ (instancetype _Nonnull)controllerWithAnimation:(CAAnimation * _Nonnull)animation

Modified SCNParticlePropertyController.inputOrigin

	Declaration
From	@property(nonatomic, weak) SCNNode *inputOrigin
To	@property(nonatomic, weak, nullable) SCNNode *inputOrigin

Modified SCNParticlePropertyController.inputProperty

	Declaration
From	@property(nonatomic, copy) NSString *inputProperty
To	@property(nonatomic, copy, nullable) NSString *inputProperty

Modified -[SCNParticleSystem addModifierForProperties:atStage:withBlock:]

Declaration

From

- (void)addModifierForProperties:(NSArray *)properties atStage:(SCNParticleModifierStage)stage withBlock:(SCNParticleModifierBlock)block

- (void)addModifierForProperties:(NSArray<NSString *> * _Nonnull)properties atStage:(SCNParticleModifierStage)stage withBlock:(SCNParticleModifierBlock _Nonnull)block

Modified SCNParticleSystem.colliderNodes

	Declaration
From	@property(nonatomic, copy) NSArray *colliderNodes
To	@property(nonatomic, copy, nullable) NSArray<SCNNode > colliderNodes

Modified SCNParticleSystem.emitterShape

	Declaration
From	@property(nonatomic, retain) SCNGeometry *emitterShape
To	@property(nonatomic, retain, nullable) SCNGeometry *emitterShape

Modified -[SCNParticleSystem handleEvent:forProperties:withBlock:]

Declaration

From

- (void)handleEvent:(SCNParticleEvent)event forProperties:(NSArray *)properties withBlock:(SCNParticleEventBlock)block

- (void)handleEvent:(SCNParticleEvent)event forProperties:(NSArray<NSString *> * _Nonnull)properties withBlock:(SCNParticleEventBlock _Nonnull)block

Modified SCNParticleSystem.particleColor

	Declaration
From	@property(nonatomic, retain) NSColor *particleColor
To	@property(nonatomic, retain, nonnull) NSColor *particleColor

Modified SCNParticleSystem.particleImage

	Declaration
From	@property(nonatomic, retain) id particleImage
To	@property(nonatomic, retain, nullable) id particleImage

Modified +[SCNParticleSystem particleSystem]

	Declaration
From	+ (instancetype)particleSystem
To	+ (instancetype _Nonnull)particleSystem

Modified +[SCNParticleSystem particleSystemNamed:inDirectory:]

Declaration

From

+ (instancetype)particleSystemNamed:(NSString *)name inDirectory:(NSString *)directory

+ (instancetype _Nullable)particleSystemNamed:(NSString * _Nonnull)name inDirectory:(NSString * _Nullable)directory

Modified SCNParticleSystem.propertyControllers

	Declaration
From	@property(nonatomic, copy) NSDictionary *propertyControllers
To	@property(nonatomic, copy, nullable) NSDictionary<NSString ,SCNParticlePropertyController > *propertyControllers

Modified SCNParticleSystem.systemSpawnedOnCollision

	Declaration
From	@property(nonatomic, retain) SCNParticleSystem *systemSpawnedOnCollision
To	@property(nonatomic, retain, nullable) SCNParticleSystem *systemSpawnedOnCollision

Modified SCNParticleSystem.systemSpawnedOnDying

	Declaration
From	@property(nonatomic, retain) SCNParticleSystem *systemSpawnedOnDying
To	@property(nonatomic, retain, nullable) SCNParticleSystem *systemSpawnedOnDying

Modified SCNParticleSystem.systemSpawnedOnLiving

	Declaration
From	@property(nonatomic, retain) SCNParticleSystem *systemSpawnedOnLiving
To	@property(nonatomic, retain, nullable) SCNParticleSystem *systemSpawnedOnLiving

Modified -[SCNScene addParticleSystem:withTransform:]

	Declaration
From	- (void)addParticleSystem:(SCNParticleSystem *)system withTransform:(SCNMatrix4)transform
To	- (void)addParticleSystem:(SCNParticleSystem * _Nonnull)system withTransform:(SCNMatrix4)transform

Modified SCNScene.particleSystems

	Declaration
From	@property(readonly) NSArray *particleSystems
To	@property(readonly, nullable) NSArray<SCNParticleSystem > particleSystems

Modified -[SCNScene removeParticleSystem:]

	Declaration
From	- (void)removeParticleSystem:(SCNParticleSystem *)system
To	- (void)removeParticleSystem:(SCNParticleSystem * _Nonnull)system

SCNPhysicsBehavior.h

Modified SCNPhysicsBallSocketJoint.bodyA

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyA
To	@property(nonatomic, readonly, nonnull) SCNPhysicsBody *bodyA

Modified SCNPhysicsBallSocketJoint.bodyB

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyB
To	@property(nonatomic, readonly, nullable) SCNPhysicsBody *bodyB

Modified +[SCNPhysicsBallSocketJoint jointWithBody:anchor:]

	Declaration
From	+ (instancetype)jointWithBody:(SCNPhysicsBody *)body anchor:(SCNVector3)anchor
To	+ (instancetype _Nonnull)jointWithBody:(SCNPhysicsBody * _Nonnull)body anchor:(SCNVector3)anchor

Modified +[SCNPhysicsBallSocketJoint jointWithBodyA:anchorA:bodyB:anchorB:]

Declaration

From

+ (instancetype)jointWithBodyA:(SCNPhysicsBody *)bodyA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody *)bodyB anchorB:(SCNVector3)anchorB

+ (instancetype _Nonnull)jointWithBodyA:(SCNPhysicsBody * _Nonnull)bodyA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody * _Nonnull)bodyB anchorB:(SCNVector3)anchorB

Modified SCNPhysicsHingeJoint.bodyA

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyA
To	@property(nonatomic, readonly, nonnull) SCNPhysicsBody *bodyA

Modified SCNPhysicsHingeJoint.bodyB

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyB
To	@property(nonatomic, readonly, nullable) SCNPhysicsBody *bodyB

Modified +[SCNPhysicsHingeJoint jointWithBody:axis:anchor:]

Declaration

From

+ (instancetype)jointWithBody:(SCNPhysicsBody *)body axis:(SCNVector3)axis anchor:(SCNVector3)anchor

+ (instancetype _Nonnull)jointWithBody:(SCNPhysicsBody * _Nonnull)body axis:(SCNVector3)axis anchor:(SCNVector3)anchor

Modified +[SCNPhysicsHingeJoint jointWithBodyA:axisA:anchorA:bodyB:axisB:anchorB:]

Declaration

From

+ (instancetype)jointWithBodyA:(SCNPhysicsBody *)bodyA axisA:(SCNVector3)axisA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody *)bodyB axisB:(SCNVector3)axisB anchorB:(SCNVector3)anchorB

+ (instancetype _Nonnull)jointWithBodyA:(SCNPhysicsBody * _Nonnull)bodyA axisA:(SCNVector3)axisA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody * _Nonnull)bodyB axisB:(SCNVector3)axisB anchorB:(SCNVector3)anchorB

Modified SCNPhysicsSliderJoint.bodyA

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyA
To	@property(nonatomic, readonly, nonnull) SCNPhysicsBody *bodyA

Modified SCNPhysicsSliderJoint.bodyB

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *bodyB
To	@property(nonatomic, readonly, nullable) SCNPhysicsBody *bodyB

Modified +[SCNPhysicsSliderJoint jointWithBody:axis:anchor:]

Declaration

From

+ (instancetype)jointWithBody:(SCNPhysicsBody *)body axis:(SCNVector3)axis anchor:(SCNVector3)anchor

+ (instancetype _Nonnull)jointWithBody:(SCNPhysicsBody * _Nonnull)body axis:(SCNVector3)axis anchor:(SCNVector3)anchor

Modified +[SCNPhysicsSliderJoint jointWithBodyA:axisA:anchorA:bodyB:axisB:anchorB:]

Declaration

From

+ (instancetype)jointWithBodyA:(SCNPhysicsBody *)bodyA axisA:(SCNVector3)axisA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody *)bodyB axisB:(SCNVector3)axisB anchorB:(SCNVector3)anchorB

+ (instancetype _Nonnull)jointWithBodyA:(SCNPhysicsBody * _Nonnull)bodyA axisA:(SCNVector3)axisA anchorA:(SCNVector3)anchorA bodyB:(SCNPhysicsBody * _Nonnull)bodyB axisB:(SCNVector3)axisB anchorB:(SCNVector3)anchorB

Modified SCNPhysicsVehicle.chassisBody

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsBody *chassisBody
To	@property(nonatomic, readonly, nonnull) SCNPhysicsBody *chassisBody

Modified +[SCNPhysicsVehicle vehicleWithChassisBody:wheels:]

Declaration

From

+ (instancetype)vehicleWithChassisBody:(SCNPhysicsBody *)chassisBody wheels:(NSArray *)wheels

+ (instancetype _Nonnull)vehicleWithChassisBody:(SCNPhysicsBody * _Nonnull)chassisBody wheels:(NSArray<SCNPhysicsVehicleWheel *> * _Nonnull)wheels

Modified SCNPhysicsVehicle.wheels

	Declaration
From	@property(nonatomic, readonly) NSArray *wheels
To	@property(nonatomic, readonly, nonnull) NSArray<SCNPhysicsVehicleWheel > wheels

Modified SCNPhysicsVehicleWheel.node

	Declaration
From	@property(readonly) SCNNode *node
To	@property(readonly, nonnull) SCNNode *node

Modified +[SCNPhysicsVehicleWheel wheelWithNode:]

	Declaration
From	+ (instancetype)wheelWithNode:(SCNNode *)node
To	+ (instancetype _Nonnull)wheelWithNode:(SCNNode * _Nonnull)node

SCNPhysicsBody.h

Added SCNPhysicsBody.affectedByGravity

Added SCNPhysicsBody.contactTestBitMask

Added SCNPhysicsBody.momentOfInertia

Added SCNPhysicsBody.usesDefaultMomentOfInertia

Modified +[SCNPhysicsBody bodyWithType:shape:]

	Declaration
From	+ (instancetype)bodyWithType:(SCNPhysicsBodyType)type shape:(SCNPhysicsShape *)shape
To	+ (instancetype _Nonnull)bodyWithType:(SCNPhysicsBodyType)type shape:(SCNPhysicsShape * _Nullable)shape

Modified SCNPhysicsBody.categoryBitMask

	Declaration
From	@property(nonatomic, assign) NSUInteger categoryBitMask
To	@property(nonatomic) NSUInteger categoryBitMask

Modified SCNPhysicsBody.collisionBitMask

	Declaration
From	@property(nonatomic, assign) NSUInteger collisionBitMask
To	@property(nonatomic) NSUInteger collisionBitMask

Modified +[SCNPhysicsBody dynamicBody]

	Declaration
From	+ (instancetype)dynamicBody
To	+ (instancetype _Nonnull)dynamicBody

Modified +[SCNPhysicsBody kinematicBody]

	Declaration
From	+ (instancetype)kinematicBody
To	+ (instancetype _Nonnull)kinematicBody

Modified SCNPhysicsBody.physicsShape

	Declaration
From	@property(nonatomic, retain) SCNPhysicsShape *physicsShape
To	@property(nonatomic, retain, nullable) SCNPhysicsShape *physicsShape

Modified +[SCNPhysicsBody staticBody]

	Declaration
From	+ (instancetype)staticBody
To	+ (instancetype _Nonnull)staticBody

SCNPhysicsContact.h

Modified SCNPhysicsContact.nodeA

	Declaration
From	@property(nonatomic, readonly) SCNNode *nodeA
To	@property(nonatomic, readonly, nonnull) SCNNode *nodeA

Modified SCNPhysicsContact.nodeB

	Declaration
From	@property(nonatomic, readonly) SCNNode *nodeB
To	@property(nonatomic, readonly, nonnull) SCNNode *nodeB

SCNPhysicsField.h

Modified +[SCNPhysicsField customFieldWithEvaluationBlock:]

	Declaration
From	+ (SCNPhysicsField *)customFieldWithEvaluationBlock:(SCNFieldForceEvaluator)block
To	+ (SCNPhysicsField * _Nonnull)customFieldWithEvaluationBlock:(SCNFieldForceEvaluator _Nonnull)block

Modified +[SCNPhysicsField dragField]

	Declaration
From	+ (SCNPhysicsField *)dragField
To	+ (SCNPhysicsField * _Nonnull)dragField

Modified +[SCNPhysicsField electricField]

	Declaration
From	+ (SCNPhysicsField *)electricField
To	+ (SCNPhysicsField * _Nonnull)electricField

Modified +[SCNPhysicsField linearGravityField]

	Declaration
From	+ (SCNPhysicsField *)linearGravityField
To	+ (SCNPhysicsField * _Nonnull)linearGravityField

Modified +[SCNPhysicsField magneticField]

	Declaration
From	+ (SCNPhysicsField *)magneticField
To	+ (SCNPhysicsField * _Nonnull)magneticField

Modified +[SCNPhysicsField noiseFieldWithSmoothness:animationSpeed:]

	Declaration
From	+ (SCNPhysicsField *)noiseFieldWithSmoothness:(CGFloat)smoothness animationSpeed:(CGFloat)speed
To	+ (SCNPhysicsField * _Nonnull)noiseFieldWithSmoothness:(CGFloat)smoothness animationSpeed:(CGFloat)speed

Modified +[SCNPhysicsField radialGravityField]

	Declaration
From	+ (SCNPhysicsField *)radialGravityField
To	+ (SCNPhysicsField * _Nonnull)radialGravityField

Modified +[SCNPhysicsField springField]

	Declaration
From	+ (SCNPhysicsField *)springField
To	+ (SCNPhysicsField * _Nonnull)springField

Modified +[SCNPhysicsField turbulenceFieldWithSmoothness:animationSpeed:]

Declaration

From

+ (SCNPhysicsField *)turbulenceFieldWithSmoothness:(CGFloat)smoothness animationSpeed:(CGFloat)speed

+ (SCNPhysicsField * _Nonnull)turbulenceFieldWithSmoothness:(CGFloat)smoothness animationSpeed:(CGFloat)speed

Modified +[SCNPhysicsField vortexField]

	Declaration
From	+ (SCNPhysicsField *)vortexField
To	+ (SCNPhysicsField * _Nonnull)vortexField

SCNPhysicsShape.h

Added SCNPhysicsShape.options

Added SCNPhysicsShape.sourceObject

Added SCNPhysicsShape.transforms

Modified +[SCNPhysicsShape shapeWithGeometry:options:]

Declaration

From

+ (instancetype)shapeWithGeometry:(SCNGeometry *)geometry options:(NSDictionary *)options

+ (instancetype _Nonnull)shapeWithGeometry:(SCNGeometry * _Nonnull)geometry options:(NSDictionary<NSString *,id> * _Nullable)options

Modified +[SCNPhysicsShape shapeWithNode:options:]

	Declaration
From	+ (instancetype)shapeWithNode:(SCNNode )node options:(NSDictionary )options
To	+ (instancetype _Nonnull)shapeWithNode:(SCNNode * _Nonnull)node options:(NSDictionary<NSString ,id> _Nullable)options

Modified +[SCNPhysicsShape shapeWithShapes:transforms:]

Declaration

From

+ (instancetype)shapeWithShapes:(NSArray *)shapes transforms:(NSArray *)transforms

+ (instancetype _Nonnull)shapeWithShapes:(NSArray<SCNPhysicsShape *> * _Nonnull)shapes transforms:(NSArray<NSValue *> * _Nullable)transforms

SCNPhysicsWorld.h

Modified -[SCNPhysicsContactDelegate physicsWorld:didBeginContact:]

	Declaration
From	- (void)physicsWorld:(SCNPhysicsWorld )world didBeginContact:(SCNPhysicsContact )contact
To	- (void)physicsWorld:(SCNPhysicsWorld * _Nonnull)world didBeginContact:(SCNPhysicsContact * _Nonnull)contact

Modified -[SCNPhysicsContactDelegate physicsWorld:didEndContact:]

	Declaration
From	- (void)physicsWorld:(SCNPhysicsWorld )world didEndContact:(SCNPhysicsContact )contact
To	- (void)physicsWorld:(SCNPhysicsWorld * _Nonnull)world didEndContact:(SCNPhysicsContact * _Nonnull)contact

Modified -[SCNPhysicsContactDelegate physicsWorld:didUpdateContact:]

	Declaration
From	- (void)physicsWorld:(SCNPhysicsWorld )world didUpdateContact:(SCNPhysicsContact )contact
To	- (void)physicsWorld:(SCNPhysicsWorld * _Nonnull)world didUpdateContact:(SCNPhysicsContact * _Nonnull)contact

Modified -[SCNPhysicsWorld addBehavior:]

	Declaration
From	- (void)addBehavior:(SCNPhysicsBehavior *)behavior
To	- (void)addBehavior:(SCNPhysicsBehavior * _Nonnull)behavior

Modified SCNPhysicsWorld.allBehaviors

	Declaration
From	- (NSArray *)allBehaviors
To	@property(nonatomic, readonly, nonnull) NSArray<SCNPhysicsBehavior > allBehaviors

Modified SCNPhysicsWorld.contactDelegate

	Declaration
From	@property(atomic, assign) id<SCNPhysicsContactDelegate> contactDelegate
To	@property(atomic, assign, nullable) id<SCNPhysicsContactDelegate> contactDelegate

Modified -[SCNPhysicsWorld contactTestBetweenBody:andBody:options:]

Declaration

From

- (NSArray *)contactTestBetweenBody:(SCNPhysicsBody *)bodyA andBody:(SCNPhysicsBody *)bodyB options:(NSDictionary *)options

- (NSArray<SCNPhysicsContact *> * _Nonnull)contactTestBetweenBody:(SCNPhysicsBody * _Nonnull)bodyA andBody:(SCNPhysicsBody * _Nonnull)bodyB options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNPhysicsWorld contactTestWithBody:options:]

Declaration

From

- (NSArray *)contactTestWithBody:(SCNPhysicsBody *)body options:(NSDictionary *)options

- (NSArray<SCNPhysicsContact *> * _Nonnull)contactTestWithBody:(SCNPhysicsBody * _Nonnull)body options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNPhysicsWorld convexSweepTestWithShape:fromTransform:toTransform:options:]

Declaration

From

- (NSArray *)convexSweepTestWithShape:(SCNPhysicsShape *)shape fromTransform:(SCNMatrix4)from toTransform:(SCNMatrix4)to options:(NSDictionary *)options

- (NSArray<SCNPhysicsContact *> * _Nonnull)convexSweepTestWithShape:(SCNPhysicsShape * _Nonnull)shape fromTransform:(SCNMatrix4)from toTransform:(SCNMatrix4)to options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNPhysicsWorld rayTestWithSegmentFromPoint:toPoint:options:]

Declaration

From

- (NSArray *)rayTestWithSegmentFromPoint:(SCNVector3)origin toPoint:(SCNVector3)dest options:(NSDictionary *)options

- (NSArray<SCNHitTestResult *> * _Nonnull)rayTestWithSegmentFromPoint:(SCNVector3)origin toPoint:(SCNVector3)dest options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNPhysicsWorld removeBehavior:]

	Declaration
From	- (void)removeBehavior:(SCNPhysicsBehavior *)behavior
To	- (void)removeBehavior:(SCNPhysicsBehavior * _Nonnull)behavior

SCNReferenceNode.h (Added)

Added SCNReferenceNode

Added -[SCNReferenceNode initWithCoder:]

Added -[SCNReferenceNode initWithURL:]

Added -[SCNReferenceNode load]

Added SCNReferenceNode.loaded

Added SCNReferenceNode.loadingPolicy

Added +[SCNReferenceNode referenceNodeWithURL:]

Added SCNReferenceNode.referenceURL

Added -[SCNReferenceNode unload]

Added SCNReferenceLoadingPolicy

Added SCNReferenceLoadingPolicyImmediate

Added SCNReferenceLoadingPolicyOnDemand

SCNRenderer.h

Added -[SCNRenderer renderAtTime:viewport:commandBuffer:passDescriptor:]

Added +[SCNRenderer rendererWithDevice:options:]

Modified -[SCNRenderer render]

	Deprecation
From	--
To	OS X 10.11

Modified +[SCNRenderer rendererWithContext:options:]

Declaration

From

+ (instancetype)rendererWithContext:(void *)context options:(NSDictionary *)options

+ (instancetype _Nonnull)rendererWithContext:(CGLContextObj _Nonnull)context options:(NSDictionary * _Nullable)options

Modified SCNRenderer.scene

	Declaration
From	@property(nonatomic, retain) SCNScene *scene
To	@property(nonatomic, retain, nullable) SCNScene *scene

SCNScene.h

Modified -[SCNScene attributeForKey:]

	Declaration
From	- (id)attributeForKey:(NSString *)key
To	- (id _Nullable)attributeForKey:(NSString * _Nonnull)key

Modified SCNScene.background

	Declaration
From	@property(nonatomic, readonly) SCNMaterialProperty *background
To	@property(nonatomic, readonly, nonnull) SCNMaterialProperty *background

Modified SCNScene.fogColor

	Declaration
From	@property(nonatomic, retain) id fogColor
To	@property(nonatomic, retain, nonnull) id fogColor

Modified SCNScene.physicsWorld

	Declaration
From	@property(nonatomic, readonly) SCNPhysicsWorld *physicsWorld
To	@property(nonatomic, readonly, nonnull) SCNPhysicsWorld *physicsWorld

Modified SCNScene.rootNode

	Declaration
From	@property(nonatomic, readonly) SCNNode *rootNode
To	@property(nonatomic, readonly, nonnull) SCNNode *rootNode

Modified +[SCNScene scene]

	Declaration
From	+ (instancetype)scene
To	+ (instancetype _Nonnull)scene

Modified +[SCNScene sceneNamed:]

	Declaration
From	+ (instancetype)sceneNamed:(NSString *)name
To	+ (instancetype _Nullable)sceneNamed:(NSString * _Nonnull)name

Modified +[SCNScene sceneNamed:inDirectory:options:]

Declaration

From

+ (instancetype)sceneNamed:(NSString *)name inDirectory:(NSString *)directory options:(NSDictionary *)options

+ (instancetype _Nullable)sceneNamed:(NSString * _Nonnull)name inDirectory:(NSString * _Nullable)directory options:(NSDictionary<NSString *,id> * _Nullable)options

Modified +[SCNScene sceneWithURL:options:error:]

Declaration

From

+ (instancetype)sceneWithURL:(NSURL *)url options:(NSDictionary *)options error:(NSError **)error

+ (instancetype _Nullable)sceneWithURL:(NSURL * _Nonnull)url options:(NSDictionary<NSString *,id> * _Nullable)options error:(NSError * _Nullable * _Nullable)error

Modified -[SCNScene setAttribute:forKey:]

	Declaration
From	- (void)setAttribute:(id)attribute forKey:(NSString *)key
To	- (void)setAttribute:(id _Nullable)attribute forKey:(NSString * _Nonnull)key

Modified -[SCNScene writeToURL:options:delegate:progressHandler:]

Declaration

From

- (BOOL)writeToURL:(NSURL *)url options:(NSDictionary *)options delegate:(id<SCNSceneExportDelegate>)delegate progressHandler:(SCNSceneExportProgressHandler)progressHandler

- (BOOL)writeToURL:(NSURL * _Nonnull)url options:(NSDictionary<NSString *,id> * _Nullable)options delegate:(id<SCNSceneExportDelegate> _Nullable)delegate progressHandler:(SCNSceneExportProgressHandler _Nullable)progressHandler

Modified -[SCNSceneExportDelegate writeImage:withSceneDocumentURL:originalImageURL:]

Declaration

From

- (NSURL *)writeImage:(NSImage *)image withSceneDocumentURL:(NSURL *)documentURL originalImageURL:(NSURL *)originalImageURL

- (NSURL * _Nullable)writeImage:(NSImage * _Nonnull)image withSceneDocumentURL:(NSURL * _Nonnull)documentURL originalImageURL:(NSURL * _Nullable)originalImageURL

SCNSceneRenderer.h

Added SCNSceneRenderer.audioEngine

Added SCNSceneRenderer.audioEnvironmentNode

Added SCNSceneRenderer.audioListener

Added SCNSceneRenderer.colorPixelFormat

Added SCNSceneRenderer.commandQueue

Added SCNSceneRenderer.currentRenderCommandEncoder

Added SCNSceneRenderer.debugOptions

Added SCNSceneRenderer.depthPixelFormat

Added SCNSceneRenderer.device

Added -[SCNSceneRenderer nodesInsideFrustumWithPointOfView:]

Added -[SCNSceneRenderer presentScene:withTransition:incomingPointOfView:completionHandler:]

Added SCNSceneRenderer.renderingAPI

Added SCNSceneRenderer.stencilPixelFormat

Added SCNDebugOptionNone

Added SCNDebugOptions

Added SCNDebugOptionShowBoundingBoxes

Added SCNDebugOptionShowLightExtents

Added SCNDebugOptionShowLightInfluences

Added SCNDebugOptionShowPhysicsFields

Added SCNDebugOptionShowPhysicsShapes

Added SCNDebugOptionShowWireframe

Added SCNRenderingAPI

Added SCNRenderingAPIMetal

Added SCNRenderingAPIOpenGLCore32

Added SCNRenderingAPIOpenGLCore41

Added SCNRenderingAPIOpenGLLegacy

Modified SCNHitTestResult.node

	Declaration
From	@property(nonatomic, readonly) SCNNode *node
To	@property(nonatomic, readonly, nonnull) SCNNode *node

Modified SCNSceneRenderer.context

	Declaration
From	@property(nonatomic, readonly) void *context
To	@property(nonatomic, readonly, nullable) void *context

Modified SCNSceneRenderer.delegate

	Declaration
From	@property(nonatomic, assign) id<SCNSceneRendererDelegate> delegate
To	@property(nonatomic, assign, nullable) id<SCNSceneRendererDelegate> delegate

Modified -[SCNSceneRenderer hitTest:options:]

	Declaration
From	- (NSArray )hitTest:(CGPoint)thePoint options:(NSDictionary )options
To	- (NSArray<SCNHitTestResult > _Nonnull)hitTest:(CGPoint)point options:(NSDictionary<NSString ,id> _Nullable)options

Modified -[SCNSceneRenderer isNodeInsideFrustum:withPointOfView:]

	Declaration
From	- (BOOL)isNodeInsideFrustum:(SCNNode )node withPointOfView:(SCNNode )pointOfView
To	- (BOOL)isNodeInsideFrustum:(SCNNode * _Nonnull)node withPointOfView:(SCNNode * _Nonnull)pointOfView

Modified SCNSceneRenderer.overlaySKScene

	Declaration
From	@property(nonatomic, retain) SKScene *overlaySKScene
To	@property(nonatomic, retain, nullable) SKScene *overlaySKScene

Modified SCNSceneRenderer.pointOfView

	Declaration
From	@property(nonatomic, retain) SCNNode *pointOfView
To	@property(nonatomic, retain, nullable) SCNNode *pointOfView

Modified -[SCNSceneRenderer prepareObject:shouldAbortBlock:]

	Declaration
From	- (BOOL)prepareObject:(id)object shouldAbortBlock:(BOOL (^)(void))block
To	- (BOOL)prepareObject:(id _Nonnull)object shouldAbortBlock:(BOOL (^ _Nullable)(void))block

Modified -[SCNSceneRenderer prepareObjects:withCompletionHandler:]

Declaration

From

- (void)prepareObjects:(NSArray *)objects withCompletionHandler:(void (^)(BOOL success))completionHandler

- (void)prepareObjects:(NSArray * _Nonnull)objects withCompletionHandler:(void (^ _Nullable)(BOOL success))completionHandler

Modified SCNSceneRenderer.scene

	Declaration
From	@property(nonatomic, retain) SCNScene *scene
To	@property(nonatomic, retain, nullable) SCNScene *scene

Modified -[SCNSceneRendererDelegate renderer:didApplyAnimationsAtTime:]

	Declaration
From	- (void)renderer:(id<SCNSceneRenderer>)aRenderer didApplyAnimationsAtTime:(NSTimeInterval)time
To	- (void)renderer:(id<SCNSceneRenderer> _Nonnull)renderer didApplyAnimationsAtTime:(NSTimeInterval)time

Modified -[SCNSceneRendererDelegate renderer:didRenderScene:atTime:]

Declaration

From

- (void)renderer:(id<SCNSceneRenderer>)aRenderer didRenderScene:(SCNScene *)scene atTime:(NSTimeInterval)time

- (void)renderer:(id<SCNSceneRenderer> _Nonnull)renderer didRenderScene:(SCNScene * _Nonnull)scene atTime:(NSTimeInterval)time

Modified -[SCNSceneRendererDelegate renderer:didSimulatePhysicsAtTime:]

	Declaration
From	- (void)renderer:(id<SCNSceneRenderer>)aRenderer didSimulatePhysicsAtTime:(NSTimeInterval)time
To	- (void)renderer:(id<SCNSceneRenderer> _Nonnull)renderer didSimulatePhysicsAtTime:(NSTimeInterval)time

Modified -[SCNSceneRendererDelegate renderer:updateAtTime:]

	Declaration
From	- (void)renderer:(id<SCNSceneRenderer>)aRenderer updateAtTime:(NSTimeInterval)time
To	- (void)renderer:(id<SCNSceneRenderer> _Nonnull)renderer updateAtTime:(NSTimeInterval)time

Modified -[SCNSceneRendererDelegate renderer:willRenderScene:atTime:]

Declaration

From

- (void)renderer:(id<SCNSceneRenderer>)aRenderer willRenderScene:(SCNScene *)scene atTime:(NSTimeInterval)time

- (void)renderer:(id<SCNSceneRenderer> _Nonnull)renderer willRenderScene:(SCNScene * _Nonnull)scene atTime:(NSTimeInterval)time

SCNSceneSource.h

Modified SCNSceneSource.data

	Declaration
From	@property(readonly) NSData *data
To	@property(readonly, nullable) NSData *data

Modified -[SCNSceneSource entriesPassingTest:]

Declaration

From

- (NSArray *)entriesPassingTest:(BOOL (^)(id entry, NSString *identifier, BOOL *stop))predicate

- (NSArray<id> * _Nonnull)entriesPassingTest:(BOOL (^ _Nonnull)(id _Nonnull entry, NSString * _Nonnull identifier, BOOL * _Nonnull stop))predicate

Modified -[SCNSceneSource entryWithIdentifier:withClass:]

	Declaration
From	- (id)entryWithIdentifier:(NSString *)uid withClass:(Class)entryClass
To	- (id _Nullable)entryWithIdentifier:(NSString * _Nonnull)uid withClass:(Class _Nonnull)entryClass

Modified -[SCNSceneSource identifiersOfEntriesWithClass:]

	Declaration
From	- (NSArray *)identifiersOfEntriesWithClass:(Class)entryClass
To	- (NSArray<NSString > _Nonnull)identifiersOfEntriesWithClass:(Class _Nonnull)entryClass

Modified -[SCNSceneSource initWithData:options:]

	Declaration
From	- (id)initWithData:(NSData )data options:(NSDictionary )options
To	- (instancetype _Nullable)initWithData:(NSData * _Nonnull)data options:(NSDictionary<NSString ,id> _Nullable)options

Modified -[SCNSceneSource initWithURL:options:]

	Declaration
From	- (id)initWithURL:(NSURL )url options:(NSDictionary )options
To	- (instancetype _Nullable)initWithURL:(NSURL * _Nonnull)url options:(NSDictionary<NSString ,id> _Nullable)options

Modified -[SCNSceneSource propertyForKey:]

	Declaration
From	- (id)propertyForKey:(NSString *)key
To	- (id _Nullable)propertyForKey:(NSString * _Nonnull)key

Modified +[SCNSceneSource sceneSourceWithData:options:]

Declaration

From

+ (instancetype)sceneSourceWithData:(NSData *)data options:(NSDictionary *)options

+ (instancetype _Nullable)sceneSourceWithData:(NSData * _Nonnull)data options:(NSDictionary<NSString *,id> * _Nullable)options

Modified +[SCNSceneSource sceneSourceWithURL:options:]

Declaration

From

+ (instancetype)sceneSourceWithURL:(NSURL *)url options:(NSDictionary *)options

+ (instancetype _Nullable)sceneSourceWithURL:(NSURL * _Nonnull)url options:(NSDictionary<NSString *,id> * _Nullable)options

Modified -[SCNSceneSource sceneWithOptions:error:]

Declaration

From

- (SCNScene *)sceneWithOptions:(NSDictionary *)options error:(NSError **)error

- (SCNScene * _Nullable)sceneWithOptions:(NSDictionary<NSString *,id> * _Nullable)options error:(NSError * _Nullable * _Nullable)error

Modified -[SCNSceneSource sceneWithOptions:statusHandler:]

Declaration

From

- (SCNScene *)sceneWithOptions:(NSDictionary *)options statusHandler:(SCNSceneSourceStatusHandler)statusHandler

- (SCNScene * _Nullable)sceneWithOptions:(NSDictionary<NSString *,id> * _Nullable)options statusHandler:(SCNSceneSourceStatusHandler _Nullable)statusHandler

Modified SCNSceneSource.url

	Declaration
From	@property(readonly) NSURL *url
To	@property(readonly, nullable) NSURL *url

SCNShadable.h

Added SCNBufferStream

Added -[SCNBufferStream writeBytes:length:]

Added SCNProgram.fragmentFunctionName

Added -[SCNProgram handleBindingOfBufferNamed:frequency:usingBlock:]

Added SCNProgram.library

Added SCNProgram.vertexFunctionName

Added SCNBufferBindingBlock

Added SCNBufferFrequency

Added SCNBufferFrequencyPerFrame

Added SCNBufferFrequencyPerNode

Added SCNBufferFrequencyPerShadable

Modified SCNProgram.delegate

	Declaration
From	@property(nonatomic, assign) id<SCNProgramDelegate> delegate
To	@property(nonatomic, assign, nullable) id<SCNProgramDelegate> delegate

Modified SCNProgram.fragmentShader

	Declaration
From	@property(nonatomic, copy) NSString *fragmentShader
To	@property(nonatomic, copy, nullable) NSString *fragmentShader

Modified SCNProgram.geometryShader

	Declaration
From	@property(nonatomic, copy) NSString *geometryShader
To	@property(nonatomic, copy, nullable) NSString *geometryShader

Modified +[SCNProgram program]

	Declaration
From	+ (instancetype)program
To	+ (instancetype _Nonnull)program

Modified -[SCNProgram semanticForSymbol:]

	Declaration
From	- (NSString )semanticForSymbol:(NSString )symbol
To	- (NSString * _Nullable)semanticForSymbol:(NSString * _Nonnull)symbol

Modified -[SCNProgram setSemantic:forSymbol:options:]

Declaration

From

- (void)setSemantic:(NSString *)semantic forSymbol:(NSString *)symbol options:(NSDictionary *)options

- (void)setSemantic:(NSString * _Nullable)semantic forSymbol:(NSString * _Nonnull)symbol options:(NSDictionary<NSString *,id> * _Nullable)options

Modified SCNProgram.tessellationControlShader

	Declaration
From	@property(nonatomic, copy) NSString *tessellationControlShader
To	@property(nonatomic, copy, nullable) NSString *tessellationControlShader

Modified SCNProgram.tessellationEvaluationShader

	Declaration
From	@property(nonatomic, copy) NSString *tessellationEvaluationShader
To	@property(nonatomic, copy, nullable) NSString *tessellationEvaluationShader

Modified SCNProgram.vertexShader

	Declaration
From	@property(nonatomic, copy) NSString *vertexShader
To	@property(nonatomic, copy, nullable) NSString *vertexShader

Modified -[SCNProgramDelegate program:bindValueForSymbol:atLocation:programID:renderer:]

Declaration

From

- (BOOL)program:(SCNProgram *)program bindValueForSymbol:(NSString *)symbol atLocation:(unsigned int)location programID:(unsigned int)programID renderer:(SCNRenderer *)renderer

- (BOOL)program:(SCNProgram * _Nonnull)program bindValueForSymbol:(NSString * _Nonnull)symbol atLocation:(unsigned int)location programID:(unsigned int)programID renderer:(SCNRenderer * _Nonnull)renderer

Modified -[SCNProgramDelegate program:handleError:]

	Declaration
From	- (void)program:(SCNProgram )program handleError:(NSError )error
To	- (void)program:(SCNProgram * _Nonnull)program handleError:(NSError * _Nonnull)error

Modified -[SCNProgramDelegate program:unbindValueForSymbol:atLocation:programID:renderer:]

Declaration

From

- (void)program:(SCNProgram *)program unbindValueForSymbol:(NSString *)symbol atLocation:(unsigned int)location programID:(unsigned int)programID renderer:(SCNRenderer *)renderer

- (void)program:(SCNProgram * _Nonnull)program unbindValueForSymbol:(NSString * _Nonnull)symbol atLocation:(unsigned int)location programID:(unsigned int)programID renderer:(SCNRenderer * _Nonnull)renderer

Modified -[SCNProgramDelegate programIsOpaque:]

	Declaration
From	- (BOOL)programIsOpaque:(SCNProgram *)program
To	- (BOOL)programIsOpaque:(SCNProgram * _Nonnull)program

Modified -[SCNShadable handleBindingOfSymbol:usingBlock:]

	Declaration
From	- (void)handleBindingOfSymbol:(NSString *)symbol usingBlock:(SCNBindingBlock)block
To	- (void)handleBindingOfSymbol:(NSString * _Nonnull)symbol usingBlock:(SCNBindingBlock _Nullable)block

Modified -[SCNShadable handleUnbindingOfSymbol:usingBlock:]

	Declaration
From	- (void)handleUnbindingOfSymbol:(NSString *)symbol usingBlock:(SCNBindingBlock)block
To	- (void)handleUnbindingOfSymbol:(NSString * _Nonnull)symbol usingBlock:(SCNBindingBlock _Nullable)block

Modified SCNShadable.program

	Declaration
From	@property(nonatomic, retain) SCNProgram *program
To	@property(nonatomic, retain, nullable) SCNProgram *program

Modified SCNShadable.shaderModifiers

	Declaration
From	@property(nonatomic, copy) NSDictionary *shaderModifiers
To	@property(nonatomic, copy, nullable) NSDictionary<NSString ,NSString > *shaderModifiers

SCNSkinner.h

Modified SCNSkinner.baseGeometry

	Declaration
From	@property(retain, nonatomic) SCNGeometry *baseGeometry
To	@property(retain, nonatomic, nullable) SCNGeometry *baseGeometry

Modified SCNSkinner.boneIndices

	Declaration
From	@property(readonly, nonatomic) SCNGeometrySource *boneIndices
To	@property(readonly, nonatomic, nonnull) SCNGeometrySource *boneIndices

Modified SCNSkinner.boneInverseBindTransforms

	Declaration
From	@property(readonly, nonatomic) NSArray *boneInverseBindTransforms
To	@property(readonly, nonatomic, nullable) NSArray<NSValue > boneInverseBindTransforms

Modified SCNSkinner.bones

	Declaration
From	@property(readonly, nonatomic) NSArray *bones
To	@property(readonly, nonatomic, nonnull) NSArray<SCNNode > bones

Modified SCNSkinner.boneWeights

	Declaration
From	@property(readonly, nonatomic) SCNGeometrySource *boneWeights
To	@property(readonly, nonatomic, nonnull) SCNGeometrySource *boneWeights

Modified SCNSkinner.skeleton

	Declaration
From	@property(nonatomic, retain) SCNNode *skeleton
To	@property(nonatomic, retain, nullable) SCNNode *skeleton

Modified +[SCNSkinner skinnerWithBaseGeometry:bones:boneInverseBindTransforms:boneWeights:boneIndices:]

Declaration

From

+ (instancetype)skinnerWithBaseGeometry:(SCNGeometry *)baseGeometry bones:(NSArray *)bones boneInverseBindTransforms:(NSArray *)boneInverseBindTransforms boneWeights:(SCNGeometrySource *)boneWeights boneIndices:(SCNGeometrySource *)boneIndices

+ (instancetype _Nonnull)skinnerWithBaseGeometry:(SCNGeometry * _Nullable)baseGeometry bones:(NSArray<SCNNode *> * _Nonnull)bones boneInverseBindTransforms:(NSArray<NSValue *> * _Nullable)boneInverseBindTransforms boneWeights:(SCNGeometrySource * _Nonnull)boneWeights boneIndices:(SCNGeometrySource * _Nonnull)boneIndices

SCNTechnique.h

Added -[SCNTechnique objectForKeyedSubscript:]

Added -[SCNTechnique setObject:forKeyedSubscript:]

Modified SCNTechnique.dictionaryRepresentation

	Declaration
From	@property(readonly) NSDictionary *dictionaryRepresentation
To	@property(readonly, nonnull) NSDictionary<NSString ,id> dictionaryRepresentation

Modified -[SCNTechnique handleBindingOfSymbol:usingBlock:]

	Declaration
From	- (void)handleBindingOfSymbol:(NSString *)symbol usingBlock:(SCNBindingBlock)block
To	- (void)handleBindingOfSymbol:(NSString * _Nonnull)symbol usingBlock:(SCNBindingBlock _Nullable)block

Modified +[SCNTechnique techniqueBySequencingTechniques:]

	Declaration
From	+ (SCNTechnique )techniqueBySequencingTechniques:(NSArray )techniques
To	+ (SCNTechnique * _Nullable)techniqueBySequencingTechniques:(NSArray<SCNTechnique > _Nonnull)techniques

Modified +[SCNTechnique techniqueWithDictionary:]

	Declaration
From	+ (SCNTechnique )techniqueWithDictionary:(NSDictionary )dictionary
To	+ (SCNTechnique * _Nullable)techniqueWithDictionary:(NSDictionary<NSString ,id> _Nonnull)dictionary

Modified SCNTechniqueSupport.technique

	Declaration
From	@property(nonatomic, copy) SCNTechnique *technique
To	@property(nonatomic, copy, nullable) SCNTechnique *technique

SCNTransaction.h

Modified +[SCNTransaction animationTimingFunction]

	Declaration
From	+ (CAMediaTimingFunction *)animationTimingFunction
To	+ (CAMediaTimingFunction * _Nullable)animationTimingFunction

Modified +[SCNTransaction completionBlock]

	Declaration
From	+ (void (^)(void))completionBlock
To	+ (void (^ _Nullable)(void))completionBlock

Modified +[SCNTransaction setAnimationTimingFunction:]

	Declaration
From	+ (void)setAnimationTimingFunction:(CAMediaTimingFunction *)function
To	+ (void)setAnimationTimingFunction:(CAMediaTimingFunction * _Nullable)animationTimingFunction

Modified +[SCNTransaction setCompletionBlock:]

	Declaration
From	+ (void)setCompletionBlock:(void (^)(void))block
To	+ (void)setCompletionBlock:(void (^ _Nullable)(void))block

Modified +[SCNTransaction setValue:forKey:]

	Declaration
From	+ (void)setValue:(id)anObject forKey:(NSString *)key
To	+ (void)setValue:(id _Nullable)value forKey:(NSString * _Nonnull)key

Modified +[SCNTransaction valueForKey:]

	Declaration
From	+ (id)valueForKey:(NSString *)key
To	+ (id _Nullable)valueForKey:(NSString * _Nonnull)key

SCNView.h

Added SCNPreferLowPowerDeviceKey

Added SCNPreferredDeviceKey

Added SCNPreferredRenderingAPIKey

Modified SCNView.backgroundColor

	Declaration
From	@property(nonatomic, copy) NSColor *backgroundColor
To	@property(nonatomic, copy, nonnull) NSColor *backgroundColor

Modified -[SCNView initWithFrame:options:]

	Declaration
From	- (id)initWithFrame:(NSRect)frame options:(NSDictionary *)options
To	- (instancetype _Nonnull)initWithFrame:(NSRect)frame options:(NSDictionary<NSString ,id> _Nullable)options

Modified SCNView.openGLContext

	Declaration
From	@property(nonatomic, retain) NSOpenGLContext *openGLContext
To	@property(nonatomic, retain, nullable) NSOpenGLContext *openGLContext

Modified -[SCNView pause:]

	Declaration
From	- (IBAction)pause:(id)sender
To	- (IBAction)pause:(id _Nullable)sender

Modified SCNView.pixelFormat

	Declaration
From	@property(nonatomic, retain) NSOpenGLPixelFormat *pixelFormat
To	@property(nonatomic, retain, nullable) NSOpenGLPixelFormat *pixelFormat

Modified -[SCNView play:]

	Declaration
From	- (IBAction)play:(id)sender
To	- (IBAction)play:(id _Nullable)sender

Modified SCNView.scene

	Declaration
From	@property(nonatomic, retain) SCNScene *scene
To	@property(nonatomic, retain, nullable) SCNScene *scene

Modified -[SCNView snapshot]

	Declaration
From	- (NSImage *)snapshot
To	- (NSImage * _Nonnull)snapshot

Modified -[SCNView stop:]

	Declaration
From	- (IBAction)stop:(id)sender
To	- (IBAction)stop:(id _Nullable)sender