JoshuaSullivan

protocol AnalyticsBackEnd {
    static func log(_ name: String)
}

extension Analytics: AnalyticsBackEnd {}

JoshuaSullivan

//
//  ColorCubeHelper.swift
//
//  Created by Joshua Sullivan on 10/01/16.
//  Copyright © 2016 Joshua Sullivan. All rights reserved.
//

import UIKit
import Accelerate

JoshuaSullivan

import Foundation
import UIKit
import CoreImage
import Metal

class Outputter {
    
    private lazy var context: CIContext = {
        guard
            let device = MTLCreateSystemDefaultDevice(),

JoshuaSullivan

import UIKit
import CoreImage
import Metal

public class Renderer {
    
    public enum Error: Swift.Error {
        case failedToCreateRenderer
        case infiniteRenderRect
        case failedToRenderImage

JoshuaSullivan

/// Represents a point on a grid.
///
/// - Note: Instances of this type are not bound to any particular Grid and may be invalid depending on the size of the grid.
///
public struct GridCoordinate: Equatable, Hashable, CustomStringConvertible {
    
    /// The origin point of the grid.
    public static let zero = GridCoordinate(x: 0, y: 0)
        
    /// The column (East/West) position of this coordinate.

JoshuaSullivan

Core Image Filters

iOS 13 has 218 filters.

New Filters in iOS 13

• CIDocumentEnhancer
• CIGaborGradients
• CIKeystoneCorrectionCombined
• CIKeystoneCorrectionHorizontal
• CIKeystoneCorrectionVertical

JoshuaSullivan

class MobiusRing {
  float majorRadius, minorRadius;
  int segments;
  
  PVector[] vertices;
  
  MobiusRing(float majorRadius, float minorRadius, int segments) {
    this.majorRadius = majorRadius;
    this.minorRadius = minorRadius;
    this.segments = segments;

JoshuaSullivan

Core Image Filters

iOS 12.2 has 207 filters.

Accordion Fold Transition (CIAccordionFoldTransition)

First available: iOS 8

Transitions from one image to another of a differing dimensions by unfolding.

JoshuaSullivan

import Foundation
import CoreImage

struct FilterInput {

    struct ValueRange {
        let minValue: Float
        let maxValue: Float
        let sliderMin: Float?
        let sliderMax: Float?

JoshuaSullivan

Midjourney Quick-Start Guide

Midjourney is a commercial image generation and transformation AI service. Similar services include:

• DALL-E 2 (Microsoft)
• Nightcafe
• Stable Diffusion (Open Source)

Midjourney is a somewhat opinionated AI and tends to try to create "art". It has a very high level of coherence, which means elements in the resulting images tend to have natural relationships with a low level of glitches and random weirdness. In my opinion, Midjourney has much higher quality "out of the box", trouncing the competition unless the user is quite advanced at effectively utilizing both positive and negative prompt particles.