I always had a hard time creating skid marks in my 3d race track models. I have tried several ways to create them in my model tool, or in photoshop, but I never made one I liked. One day I was thinking, it would be cool if I could find a nice flat parking lot and borrow the wife's GT mustang... But that could end up being some expensive textures if I were to break the transmission while doing burnouts...

I then had a brainwave. I could do this in 3D Rad, and use a screenshot program to capture the image ( BTW exporting a screenshot might be a good feature request).

I made a very simple program that I can use to create all sorts of black marks to simulate the look of real black marks on a white surface. I can then edit them easy in photoshop and have some good looking pre-made tire/tyre marks on the race track surface. I already have some ideas for version 2, if you have any suggestions please let me know!