# Macros ## Topics ### Macros [`#define GLKMatrix4FromCATransform3D(X)`](/documentation/SceneKit/GLKMatrix4FromCATransform3D) [`#define GLKMatrix4ToCATransform3D(X)`](/documentation/SceneKit/GLKMatrix4ToCATransform3D) [`#define SCNColor`](/documentation/SceneKit/SCNColor) [`#define SCNHitTestOptionBackFaceCulling`](/documentation/SceneKit/SCNHitTestOptionBackFaceCulling) [`#define SCNHitTestOptionBoundingBoxOnly`](/documentation/SceneKit/SCNHitTestOptionBoundingBoxOnly) [`#define SCNHitTestOptionClipToZRange`](/documentation/SceneKit/SCNHitTestOptionClipToZRange) [`#define SCNHitTestOptionFirstFoundOnly`](/documentation/SceneKit/SCNHitTestOptionFirstFoundOnly) [`#define SCNHitTestOptionIgnoreChildNodes`](/documentation/SceneKit/SCNHitTestOptionIgnoreChildNodes) [`#define SCNHitTestOptionIgnoreHiddenNodes`](/documentation/SceneKit/SCNHitTestOptionIgnoreHiddenNodes) [`#define SCNHitTestOptionRootNode`](/documentation/SceneKit/SCNHitTestOptionRootNode) [`#define SCNHitTestOptionSortResults`](/documentation/SceneKit/SCNHitTestOptionSortResults) [`#define SCNPhysicsShapeOptionKeepAsCompound`](/documentation/SceneKit/SCNPhysicsShapeOptionKeepAsCompound) [`#define SCNPhysicsShapeOptionScale`](/documentation/SceneKit/SCNPhysicsShapeOptionScale) [`#define SCNPhysicsShapeOptionType`](/documentation/SceneKit/SCNPhysicsShapeOptionType) [`#define SCNPhysicsTestOptionBackfaceCulling`](/documentation/SceneKit/SCNPhysicsTestOptionBackfaceCulling) [`#define SCNPhysicsTestOptionCollisionBitMask`](/documentation/SceneKit/SCNPhysicsTestOptionCollisionBitMask) [`#define SCNPhysicsTestOptionSearchMode`](/documentation/SceneKit/SCNPhysicsTestOptionSearchMode) [`#define SCNSceneAttributeEndTime`](/documentation/SceneKit/SCNSceneAttributeEndTime) [`#define SCNSceneAttributeFrameRate`](/documentation/SceneKit/SCNSceneAttributeFrameRate) [`#define SCNSceneAttributeStartTime`](/documentation/SceneKit/SCNSceneAttributeStartTime) [`#define SCNSceneAttributeUpAxis`](/documentation/SceneKit/SCNSceneAttributeUpAxis) [`#define SCNSceneSourceLoadingOptionAnimationImportPolicy`](/documentation/SceneKit/SCNSceneSourceLoadingOptionAnimationImportPolicy) [`#define SCNSceneSourceLoadingOptionAssetDirectoryURLs`](/documentation/SceneKit/SCNSceneSourceLoadingOptionAssetDirectoryURLs) [`#define SCNSceneSourceLoadingOptionCheckConsistency`](/documentation/SceneKit/SCNSceneSourceLoadingOptionCheckConsistency) [`#define SCNSceneSourceLoadingOptionConvertToYUp`](/documentation/SceneKit/SCNSceneSourceLoadingOptionConvertToYUp) [`#define SCNSceneSourceLoadingOptionConvertUnitsToMeters`](/documentation/SceneKit/SCNSceneSourceLoadingOptionConvertUnitsToMeters) [`#define SCNSceneSourceLoadingOptionCreateNormalsIfAbsent`](/documentation/SceneKit/SCNSceneSourceLoadingOptionCreateNormalsIfAbsent) [`#define SCNSceneSourceLoadingOptionFlattenScene`](/documentation/SceneKit/SCNSceneSourceLoadingOptionFlattenScene) [`#define SCNSceneSourceLoadingOptionOverrideAssetURLs`](/documentation/SceneKit/SCNSceneSourceLoadingOptionOverrideAssetURLs) [`#define SCNSceneSourceLoadingOptionStrictConformance`](/documentation/SceneKit/SCNSceneSourceLoadingOptionStrictConformance) [`#define SCNSceneSourceLoadingOptionUseSafeMode`](/documentation/SceneKit/SCNSceneSourceLoadingOptionUseSafeMode) [`#define SCNViewOptionPreferLowPowerDevice`](/documentation/SceneKit/SCNViewOptionPreferLowPowerDevice) [`#define SCNViewOptionPreferredDevice`](/documentation/SceneKit/SCNViewOptionPreferredDevice) [`#define SCNViewOptionPreferredRenderingAPI`](/documentation/SceneKit/SCNViewOptionPreferredRenderingAPI) [`#define SCN_EXPORT`](/documentation/SceneKit/SCN_EXPORT) [`var SCN_ENABLE_METAL: Int32`](/documentation/SceneKit/SCN_ENABLE_METAL) [`var SCN_ENABLE_OPENGL: Int32`](/documentation/SceneKit/SCN_ENABLE_OPENGL) [`#define SCN_GL_DEPRECATED(fromM, toM, fromI, toI)`](/documentation/SceneKit/SCN_GL_DEPRECATED) [`#define SCN_GL_DEPRECATED_IOS(from, to)`](/documentation/SceneKit/SCN_GL_DEPRECATED_IOS) [`#define SCN_GL_DEPRECATED_MAC(from, to)`](/documentation/SceneKit/SCN_GL_DEPRECATED_MAC) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)