Repli­cate and du­pli­cate in 3D

Rob Redman shows you how to save time and ef­fort, with this guide to du­pli­ca­tion in ZBrush to achieve the max­i­mum of de­tail on an ob­ject

ImagineFX - - Issue 137 August 2016 -

Save time in ZBrush, with Rob Redman’s help.

Adding de­tail to an ob­ject is a task that most 3D artists want to do, but it can be time con­sum­ing and dif­fi­cult to get right. Luck­ily, ZBrush has a few tricks up its sleeve and you can add al­most end­less amounts of de­tail by cre­at­ing the de­tail part and then du­pli­cat­ing it, spread­ing it in a con­trol­lable way across the un­der­ly­ing ob­ject. It’s pos­si­ble, as shown here, to cre­ate huge amounts of de­tail, all with set lev­els of ran­domi­sa­tion, with­out even hav­ing to cre­ate a de­tail mesh. ZBrush can take a pre­set tool, with a cube as a de­fault (re­mov­ing an­other step from the work­flow), and then use that as the ba­sis for the clones.

This has scope for many dif­fer­ent ap­pli­ca­tions, but the ob­vi­ous ones are gree­bles and nurnies, com­monly used for such things as space ships, me­chan­i­cal parts and of course, mod­el­ling your own Death Star, which is what we’ll aim at do­ing here, be­cause it’s a good ex­am­ple that you should be able to follow eas­ily. The Nanomesh tool, which we will use for this ar­ti­cle, en­ables us to use just the sim­plest of geom­e­try, yet can yield some very pleas­ing re­sults.

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