Add noise for realistic results
Introduces ZBrush’s Procedural Noise tools and shows you how to achieve more lifelike results with a few simple settings
omputer generated imagery, especially in its 3D form, can sometimes suffer from a look that can be described as cold and clinical. Of course, there are instances when this can be a huge benefit, but a lot of the time CG artists strive to add imperfections that, perhaps ironically, photographers can spend huge amounts of time and money attempting
Cto remove. A little grunge or wear and tear can help sell the idea that a CG render is a real object or scene rather than a mathematical solution and, for most of us, that’s the Holy Grail of our work.
If you are, or are thinking of becoming, a ZBrush artist then you’ll have countless tools and methods to add fine surface detail to break up your model’s perfect uniformity, but many of these can take a lot of set-up time, and have steeper learning curves than you might wish. However, the Surface Noise tool is a simple and effective way of procedurally adding some very high-quality random detail to your projects.
For this example I’m using one of the default ZTools that ships with ZBrush so you can easily follow along, but the same techniques apply to any mesh.