Koshimizu-Takehito

#include <metal_stdlib>
using namespace metal;

float smoothMin(float x1, float x2, float k) {
    float h = clamp(0.5 - 0.5 * (x2 - x1) / k, 0.0, 1.0);
    return mix(x1, x2, h) - k * h * (1.0 - h);
}

float circleSDF(float2 point, float2 center, float radius) {
    return length(point - center) - radius;

Koshimizu-Takehito

#include <metal_stdlib>
using namespace metal;

float smoothMin(float x1, float x2, float k) {
    float h = clamp(0.5 - 0.5 * (x2 - x1) / k, 0.0, 1.0);
    return mix(x1, x2, h) - k * h * (1.0 - h);
}

float circleSDF(float2 point, float2 center, float radius) {
    return length(point - center) - radius;

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    var body: some View {
        WavingText()
            .foregroundStyle(.white)
            .frame(maxWidth: .infinity, maxHeight: .infinity)
            .background(Color(hue: 220/360, saturation: 0.3, brightness: 0.9))
    }
}

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    private var title: String {
        Item.sample.title
    }

    private var message: String {
        Item.sample.message
    }

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var isExpanded = [true] + Array(repeating: false, count: PageItem.samples.count)

    var body: some View {
        ZStack {
            ForEach(1..<isExpanded.count, id: \.self) { offset in
                let item = PageItem.samples[(offset-1) % PageItem.samples.count]
                PageView(

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var isExpanded = [true] + Array(repeating: false, count: 10)

    var body: some View {
        ZStack {
            ForEach(1..<isExpanded.count, id: \.self) { offset in
                CircleView(
                    color: .color(offset: offset),

Koshimizu-Takehito

import SwiftUI
import MapKit

struct ContentView: View {
    @State var position = MapCameraPosition.region(
        MKCoordinateRegion(
            center: CLLocationCoordinate2DMake(35.685175, 139.7528),
            span: MKCoordinateSpan(latitudeDelta: 0.03, longitudeDelta: 0.03)
        )
    )

Koshimizu-Takehito

import SwiftUI
import MapKit

struct MonotoneMap: View {
    @State var position = MapCameraPosition.region(
        MKCoordinateRegion(
            center: CLLocationCoordinate2DMake(35.685175, 139.7528),
            span: MKCoordinateSpan(latitudeDelta: 0.03, longitudeDelta: 0.03)
        )
    )

Koshimizu-Takehito

import SwiftUI

struct ShaderView: View {
    let name: String
    private let start = Date()

    var body: some View {
        let shader = ShaderFunction(library: .default, name: name)
        TimelineView(.animation) { context in
            let seconds = context.date.timeIntervalSince(start)

Koshimizu-Takehito

import SwiftUI

struct Item: Identifiable, Hashable {
    var id = UUID()
}

struct ContentView: View {
    @State var items = [Item()]

    var body: some View {