# triangleKaleidoscope() Create a triangular kaleidoscope effect and then tiles the result. ``` class func triangleKaleidoscope() -> any CIFilter & CITriangleKaleidoscope ``` ## Return Value The tiled image. ## Discussion This method applies the triangle kaleidoscope filter to an image. The effect produces a complex tiled pattern from a triangular area input image. The triangle kaleidoscope tile filter uses the following properties: - `inputImage`: An image with the type [`CIImage`](/documentation/CoreImage/CIImage). - `decay`: A `float` representing the intensity of the color fade from the center of the triangle as an . - `point`: A set of coordinates marking the center of the triangular area of the input image as a [`CIVector`](/documentation/CoreImage/CIVector). - `rotation`: A `float` representing the angle of rotation of the triangle as an . - `size`: A `float` representing the size in pixels of the triangle as an . The following code creates a filter that produces a triangle tile of the input image, creating an optical illusion: ```swift func triangleKaleidoscope(inputImage: CIImage) -> CIImage { let triangleKaleidoscopeTile = CIFilter.triangleKaleidoscope() triangleKaleidoscopeTile.inputImage = inputImage triangleKaleidoscopeTile.point = CGPoint(x: 150, y: 150) triangleKaleidoscopeTile.size = 700 triangleKaleidoscopeTile.rotation = -0.36 triangleKaleidoscopeTile.decay = 0.85 return triangleKaleidoscopeTile.outputImage! } ```  --- 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)