i have a building that i modeling(polygon) with grass, trees, roads and dirt all around the area that i want to mimic in my scene. Instead of creating textures(dirt, grass, etc) and then applying them to the polygon or face that i choose is there an easy way to just use the paint effects tool to brush colors onto the surface of the land?? This would be something similar to MS Paint. you just pick the width of the brush and the color then brush.

Regular old airbrush doesnt work and its 3D and you cant change the colors..unless i am missing something here... i hope i have been clear in my question...

thanks all in advance!