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Time Displacement Slit-Scan Techniques MIND BENDING EFFECTS Onomatopoetix

岩井俊雄 マシュマロモニター（ICC） 2002

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class func overlayBlendMode() -> any CIFilter & CICompositeOperation CGAffineTransform(translationX: 0, y: CGFloat(lastIndex * 1)) 今のフレーム 前のフレーム 重なったフレーム 保存

let trans = CGAffineTransform(translationX: 0, y: CGFloat(lastIndex * 1)) let movedImage = ciImage.transformed(by: trans) cachedCIImage = movedImage.composited(over: cachedCIImage!)

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CIImage Although a CIImage object has image data associated with it, it is not an image. You can think of a CIImage object as an image “recipe.” A CIImage object has all the information necessary to produce an image, but Core Image doesn’t actually render an image until it is told to do so. This lazy evaluation allows Core Image to operate as efficiently as possible.

class func overlayBlendMode() -> any CIFilter & CICompositeOperation CGAffineTransform(translationX: 0, y: CGFloat(lastIndex * 1)) 今のフレーム 前のフレーム 重なったフレーム 保存 CIImage に変換 CGImage に変換

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CVImageBuffer -> MTLTexture CVImageBuffer -> CIImage

MetalPetal https://github.com/MetalPetal/MetalPetal

filter2.transform = CATransform3DMakeTranslation(0, Self.count * 1, 0) filter2.inputImage = image filter.inputImage = filter2.outputImage! filter.inputBackgroundImage = previousImage let rendered = try! Self.render.render(filter.outputImage!, using: Self.renderContext).pixelBuffer CapturePipeline.previousImage = MTIImage(cvPixelBuffer: rendered, alphaType: .alphaIsOne) CIImage -> MTIImage CIFilter -> MTIFilter

class func overlayBlendMode() -> any CIFilter & CICompositeOperation CGAffineTransform(translationX: 0, y: CGFloat(lastIndex * 1)) 今のフレーム 前のフレーム 重なったフレーム FeedBack MTIImage に変換 CVPixelBuffer に変換

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