Digimation QuickDirt 是一个3DS MAX的污物及老化效果插件，Digimation公司系列特效插件之一，它是一个强大的易于使用的污物和老化的应用工具。它的主要用途是为网孔物体添加污垢、铁锈、泥浆及其它依赖于拓朴的纹理效果。
QuickDirt. Filthy little aging plug-in for 3ds Max.
QuickDirt is a powerful, yet easy to use dirt and aging application tool for 3ds Max. It exists as a combination Object Modifier and Map type that are used in concert. Its primary use is for adding dirt, rust, mud and other topology dependent texturing effects to mesh objects. The plug-in, as the name implies, works in (near) real time and offers interactive viewport feedback on the placement of the weathering. Besides its speed, another advantage of QuickDirt is that you can define different settings for different parts of the object, allowing you to control the final look.
QuickDirt also generates a B/W mask image, which can be used to mix different materials/textures. To achieve viewport interactivity and to eliminate the necessity of applying UVW coordinates, output is stored in Vertex Color structure of the mesh file. This also eliminates multiple copies of the same material if applied to more than one object. Plus, if you want to re-touch the dirt map, on the other hand, you can export it using the existing UVW coordinates of the mesh.
QuickDirt users have the added advantage of a new "Blur" parameter within the system that dramatically enhances the look of dirt by softening and diffusing it. It is similar to Gaussian blurring operation for raster images and is effective for making the distressed sections of the material look more “natural”.