I'm Pablo, a one-person studio in Quito, Ecuador: apps for iPhone, iPad and the Mac, a game, six sites for the browser, and long write-ups on how they work.
Seven so far, newest first. Each is free to start on the App Store.
Cosset
A cosy room for every pet.
iPhone & iPad
Hola PDF
Paper in, clean PDF out.
iPhone, iPad & Mac
Hindcast
How sure is the forecast?
iPhone, iPad & Watch
Sharp
Many shots. One picture.
iPhone & iPad
Replay Breakdown
Shoot it. Step through every frame.
iPhone & iPad
Chinagraph
Everything around the edit.
Mac
Rake Plus
Change the photo after the shot.
iPhone & iPad
Game · iPhone & iPad · Free on the App Store
Chess, with magnets under the board.
Chess puzzles where magnets move the pieces: 64 proved puzzles in 13 worlds, a new one every day, and whole games against the engine or a friend. One purchase opens everything.
Open Lodemate
Hola PDF, Sharp and Hindcast on any computer, the courses, Ray Kiln with its playground and shader linter, and the rates of Ecuador's banks.
Hola PDF, in the browser.
Sharp, in the browser.
Mathematics, science and code.
Shaders, a playground and a Mac app.
Hindcast, in the browser.
What Ecuador's banks pay and charge.
Every project here is built on them, decided before a single feature, not adjusted for one.
I draw interfaces from actual shapes and native components, not pictures of them. If it's on screen, it's the same geometry the code collides against.
I write Swift, SwiftUI, and Apple's own frameworks end to end. No cross-platform runtime stands between an app and the OS it ships on.
I treat a third-party package as a liability until it proves otherwise — one more thing a user trusts with their data without ever agreeing to it.
Longer technical write-ups, grouped by topic. All series
Depth & Light continued: Rake rebuilt from what survived of it, and the tools added to it — fog, dehaze and refocus by depth, a grade by distance, weather, window light, and a photograph that moves.
3 posts · Swift · MetalHow Sharp 1.2 was built and measured: the first runs on a real iPad, rotation in the aligner, choosing the detail size by eye, exposure blending, stacking in slabs, and retouches that can be reopened.
6 posts · SwiftHow relighting a photograph works: the depth a Portrait photo carries, turning it into surfaces, and lighting them with three lights that cast real shadows.
7 posts · Photography & renderingFive small C# programs from 2019 on making threads work together: signals, a parallel search, matrix products, a producer and its consumers, and prioritised groups.
5 posts · C#OpenCL and OpenMP from a first kernel to an LU decomposition, then the same decomposition with SSE intrinsics, each version timed.
7 posts · OpenCL · OpenMPTwelve C# and Windows Forms programs from 2020: random events, Poisson and Wiener processes, Markov chains, the chi-square test and a bank simulated event by event.
12 posts · C#A software engineer based in Quito, Ecuador, working mostly in Swift and C#. pablin.me is where that work ships. Outside of it: books, music, and more podcasts than is reasonable.