Sketch have a lot of basic functions to develop a drawing app for iPhone. Anyone can easily create drawing iOS Application.
libmypaint, a.k.a. "brushlib", is a library for making brushstrokes which is used by MyPaint and other projects.
Procedurally generated paintings of nonexistent flowers.
Unity VR & AR Painting in 3d space for the Vive and Tango and ARKit
ICCV2019 - A painting AI that can reproduce paintings stroke by stroke using deep reinforcement learning.
MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets.
Modified implementation of DCGAN focused on generative art. Includes pre-trained models for landscapes, nude-portraits, and others.
From Vectors to (sub) Pixels, C# 2D Rendering Library
iOS painting and drawing library based on Metal. 神笔马良有一支神笔（基于 Metal 的涂鸦绘图库）
🎨💪 Modern, modular paint and more! (pre-alpha, not much done yet)
A perpetual artwork streaming app. (Website Repo)
A procedural textures authoring and 3D model painting tool based on the Godot game engine
Simple GTK# Paint Program
🎨 Classic MS Paint, ＲＥＶＩＶＥＤ + ✨Extras
paint 3D ivy in the Unity Editor, watch procedurally generated meshes simulate growth and clinging in real-time
DokoDemoPainter is a fast and easy texture painting solution for Unity and can paint on both regular and skinned meshes
A program allowing painting textures of different channels SIMULTANEOUSLY on a 3d model
🎨: RPG map maker (paint tool)
bLUe - A simple and comprehensive image editor featuring automatic contrast enhancement, color correction, 3D LUT creation, raw postprocessing, exposure fusion and noise reduction
Isometric Painting Tool on HTML5 canvas
Kreative PowerPaint - Library and Application for Bitmap and Vector Image Editing