DokoDemoPainter is a fast and easy texture painting solution for Unity. It allows you to paint on both regular and skinned meshes in-game. A pen, an eraser and a stamp tool are included. Using the included script components, you can easily setup your own painting tools. DokoDemoPainter also provides functionality to fade texture changes back to the original texture over time. Modified textures can be saved and saved textures can be automatically loaded at initialization to make modifications seem persistent.
You can also find the source code and demos on GitHub.
WebGL demos
Painting by mouse
WebVR demo based on Mozilla's Sunny Desert
Contact
If you have any questions, you can contact me on Twitter (@Emiliana_vt). For reporting bugs, opening an issue on GitHub would be the best way.