Material Maker is a fully-functional, professional and user-friendly procedural PBR material authoring and 3D model texture painting tool for Windows, Mac and Linux, developed by R0dZill4 (Rod Zilla) from France in 2019, based on Godot Engine. It allows users to quickly and easily complete the drawing of various custom materials/textures by connecting nodes.

Knald is the world's first high-quality 3D texturing software based on GPU algorithm. It can generate 3D texture maps from 2D images, including Normal, Derivative, Displacement/Height, Ambient Occlusion, Concavity and Convexity maps. It's easy to operate, real-time, and super-fast (almost no waiting) to generate textures.

Substance Designer (now called Adobe Substance 3D Designer) is a world-renowned, currently the most ideal, new generation of 3D texture/material design & production software, and the ultimate 3D material creation and scanning processing tool. Meanwhile, it is also the first tool that is able to mix bitmaps, vectors and other elements together to create complex maps. In fact, it has been used by many game companies, and is fully compatible with all the popular 3DCG software and game engines at present.

Making multiple small images spliced into a large one (sprites sheet), for game development, this can save the storage space and loaded memory that texture images require in game; for web design, this (CSS sprites) can greatly reduce the images loading frequency and time, so as to make web pages load faster. If you want to use Photoshop to do this, that's too stupid and inefficient. Or if you gave Zwoptex up, then it's time to turn to this TexturePacker from Germany.