A new innovative 3d painting application has just hit the streets. The workflow is completely non-destructive, and painting with particles is possible to create automatic erosion and wear effects.
It looks very, very interesting. The beta is $75, is missing a lot of features that the devs will be adding throughout this year. At the end you get a free license of the non-commercial version (which normally costs $149), which includes a non-steam version.
The trial version can be downloaded here: http://www.allegorithmic.com/products/substance-painter#Overview
I’ve been looking for a good non-destructive 3d/2d painting app - maybe this is it. I am downloading the trial as I write this.