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How to create a realistic 3D city

How to create a realistic 3D city

You may think creating urban environments would just be for architects, but there's an ever-increasing call for cities (or more accurately, representations of cities) in visual effects and motion graphics.

As city building can create massive datasets, basic planning of which buildings you will see is an absolutely essential skill. Couple this with a good understanding of how proxy or instance geometry can work, and you'll soon be creating your own London, Tokyo or Gotham as efficiently as possible. Here are some top cityscape creation tips...

01. Populating your city

How to create a realistic 3D city

Add life to your city with simulated crowds

Most 3D applications have ways of quickly populating cities - but what do you do if you want to add life to your city? Tools like the handy Populate in 3ds Max 2014 can help you simulate crowds very quickly, and can be assigned to specific areas of the geometry to make sure they give the appearance that they belong to your city.

02. Using compositing apps

How to create a realistic 3D city

Nuke and After Effects can be used to help create convincing cities

The 3D tools in Nuke can be used with its projection mapping tools to create geometry from city photography, which can be moved around in and may prove a more efficient method than modelling a city. After Effects users can use plug-ins such as Metropolitan with the Element 3D plug-in to create convincing cities.

03. Vital software

How to create a realistic 3D city

CityEngine can generate a wealth of bespoke buildings and layout quickly and efficiently from an imported map source

Esri's CityEngine is a key piece of kit, which can generate a wealth of bespoke buildings and layout quickly and efficiently from an imported map source, CityEngine import map data, to populate existing cities. It can also generate procedural city layouts via a simple set of parameters, giving you convincing cities from any period, past, present or future very quickly.

04. Building interiors

How to create a realistic 3D city

It's important to build the interiors of skyscraper rooms for hero buildings, to allow convincing parallax and reflections to occur

It's important to build the interiors of skyscraper rooms for hero buildings, to allow convincing parallax and reflections to occur. If your deadline/budget doesn't allow for full interior modelling, using tricks like making a couple of interiors with a picture of a room placed on a polygon card with another polygon with a texture-mapped curtain, can be a solution.

Words: Mike Griggs (opens in new tab)

Mike Griggs is a concept 3D, VFX and motion graphics artist working across TV, exhibition and digital design. This article originally appeared in 3D World (opens in new tab) issue 178.

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