PlyEdit: Dirt

Often realism in computer graphics can be greatly enhanced by adding imperfections to color textures. These naturally occurring features, a result of an object's exposure to the physical environment, can include rain staining, scratches, scarring, bleaching, corrosion and the accumulation of dirt.

Fig 2. Clean and Dirty

With the Dirt tool you can automatically calculate the later; dirt (black) is added to the polymesh color in crevices (see right side of Fig 2).

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