How to implement Drawing App on iOS using metal

Welcome to this concise DIY guide on creating a drawing app using Metal without relying on third-party frameworks. As one of the winners of the Telegram Drawing contest, I’ve decided to reveal the details of that task and take you through a step-by-step journey to build your own drawing application from scratch.

Table of contents:

  1. Introduction
  2. Getting Started
  3. Metal Basics: Rendering and Displaying Content
  4. Understanding the Rendering Pipeline — Drawing a Dot Using Metal Shader Language
  5. Drawing a Smooth Line with User’s Touches Using Metal

Getting Started

To begin your journey into creating a drawing app using Metal, start by downloading the starter project for this tutorial from the provided link. This project comes equipped with all necessary extensions and a pre-implemented UIGestureRecognizer class, allowing you to focus solely on the topic at hand.

Website

Tags: App drawing