Tools

This is a new generation of texturing software for you to check out, in case you haven't yet:

• Substance Painter is a 3D painting application from Allegorithmic. It is available at http://www.allegorithmic.com/products/substance-painter. Again, it's worth mentioning that Allegorithmic products won't make use of Unity's Standard Shader, relying instead on substance files that are natively supported by Unity.
• Bitmap2Material creates full-featured materials (including normal maps and specular maps) from a single bitmap image. Also, it is from Allegorithmic, and it is available at http://www.allegorithmic.com/products/bitmap2material.
• Quixel DDO is a plugin for creating PBR-ready textures in Adobe Photoshop. From Quixel, it is available at http://www.quixel.se/ddo.
• Quixel NDO is a plugin for creating Normal maps in Adobe Photoshop. From Quixel, it is available at http://www.quixel.se/ndo.
• Mari is a 3D painting tool from The Foundry. It is available at http://www.thefoundry.co.uk/products/mari/.
• CrazyBump is a standalone tool for Windows and Mac, which is available at http://www.crazybump.com.
• The GIMP normalmap plugin, available for Windows only, is available at http://code.google.com/p/gimp-normalmap/.
• NVIDIA Texture Tools for Adobe Photoshop, available for Windows only, is available at http://developer.nvidia.com/nvidia-texture-tools-adobe-photoshop.
• The NormalMap Online free online tool, developed by Christian Petry, can be used to generate Normal maps, regardless of your computers Operating System. This tool can be accessed at http://cpetry.github.io/NormalMap-Online/.