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

ImagineFX: Sci-fi & Fantasy Art magazine - - Workshops -

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.

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