SceneKit_中级10_滤镜效果制作

open var filters: [CIFilter]?

let scnView = SCNView(frame: self.view.bounds, options: [SCNView.Option.preferredRenderingAPI.rawValue:true])     
scnView.backgroundColor = UIColor.black
self.view.addSubview(scnView)

 let scene = SCNScene()
 scnView.scene = scene

let cameraNode = SCNNode()
cameraNode.camera = SCNCamera()
scene.rootNode.addChildNode(cameraNode)

let box = SCNBox(width: 1, height: 1, length: 1, chamferRadius: 0)
box.firstMaterial?.diffuse.contents = "1.png"
let boxNode = SCNNode(geometry: box)
boxNode.position = SCNVector3Make(0, 0, -2)
scene.rootNode.addChildNode(boxNode)

let filter = CIFilter(name: "CIEdgeWork")!
boxNode.filters = [filter]

  let filter = CIFilter(name: "CIGaussianBlur")!
  filter.setDefaults()
  filter.setValue(10, forKey: kCIInputRadiusKey)
  boxNode.filters = [filter]

 let filter = CIFilter(name: "CISepiaTone")!     
 filter.setDefaults()
 filter.setValue(0.8, forKey: kCIInputIntensityKey)                    
 boxNode.filters = [filter]

  let filter = CIFilter(name: "CISepiaTone",withInputParameters: [kCIInputIntensityKey: 5])!
 boxNode.filters = [filter]

let filter = CIFilter(name: "CIPixellate",
withInputParameters: [kCIInputScaleKey: 10.0])!
boxNode.filters = [filter]

let filter = CIFilter(name: "CIPhotoEffectProcess")!
 boxNode.filters = [filter]

 let filter1 = CIFilter(name: "CIPixellate",
        withInputParameters: [kCIInputScaleKey: 10.0])!
let filter2 = CIFilter(name: "CIPhotoEffectProcess")!
    boxNode.filters = [filter1,filter2]

CIAdditionCompositing     //影像合成
 CIAffineTransform           //仿射变换
 CICheckerboardGenerator       //棋盘发生器
 CIColorBlendMode              //CIColor混合模式
 CIColorBurnBlendMode          //CIColor燃烧混合模式
 CIColorControls
 CIColorCube                   //立方体
 CIColorDodgeBlendMode         //CIColor避免混合模式
 CIColorInvert                 //CIColor反相
 CIColorMatrix                 //CIColor矩阵
 CIColorMonochrome             //黑白照
 CIConstantColorGenerator      //恒定颜色发生器
 CICrop                        //裁剪
 CIDarkenBlendMode             //亮度混合模式
 CIDifferenceBlendMode         //差分混合模式
 CIExclusionBlendMode          //互斥混合模式
 CIExposureAdjust              //曝光调节
 CIFalseColor                  //伪造颜色
 CIGammaAdjust                 //灰度系数调节
 CIGaussianGradient            //高斯梯度
 CIHardLightBlendMode          //强光混合模式
 CIHighlightShadowAdjust       //高亮阴影调节
 CIHueAdjust                   //饱和度调节
 CIHueBlendMode                //饱和度混合模式
 CILightenBlendMode
 CILinearGradient              //线性梯度
 CILuminosityBlendMode         //亮度混合模式
 CIMaximumCompositing          //最大合成
 CIMinimumCompositing          //最小合成
 CIMultiplyBlendMode           //多层混合模式
 CIMultiplyCompositing         //多层合成
 CIOverlayBlendMode            //覆盖叠加混合模式
 CIRadialGradient              //半径梯度
 CISaturationBlendMode         //饱和度混合模式
 CIScreenBlendMode             //全屏混合模式
 CISepiaTone                   //棕黑色调
 CISoftLightBlendMode          //弱光混合模式
 CISourceAtopCompositing
 CISourceInCompositing
 CISourceOutCompositing
 CISourceOverCompositing
 CIStraightenFilter            //拉直过滤器
 CIStripesGenerator            //条纹发生器
 CITemperatureAndTint          //色温
 CIToneCurve                   //色调曲线
 CIVibrance                    //振动
 CIVignette                    //印花
 CIWhitePointAdjust            //白平衡调节