Epic Games, maker of the Unreal Engine, have announced a major update to the gaming engine platform that not only benefit the gaming and design industry, but have features that have potential applications in AEC. The release of Unreal Engine 4.25 (UE 4.25) features a comprehensive suite of next-generation tools for game designers, but also includes native lidar point cloud support for the first time.
From an article in SPAR 3D by Carla Lauter.
Before this release, point clouds captured with laser scanning were imported and manipulated via a marketplace plugin. As of this release, the existing Lidar Point Clouds Plugin has been taken off their Marketplace, marking lidar support as a permanent addition to the engine’s native tools.
The update adds support for importing, visualizing, editing and interacting with point clouds acquired from laser scans, as well as support for working with multiple point cloud segments without decreases in performance.
UE 4.25 is available within the Unreal Editor, supporting the major point cloud formats (.txt, .xyz, .pts, and .las). Point clouds can be imported by the Editor by dropping a file into the content browser, or using the Blueprint API. From the Editor Viewport, individual points ca be hidden, deleted, merged or extracted.
Updates to the rendering capabilities include support for “very large” data sets with on-demand streaming of data from files and GPU. This capability, in particular, may help accelerate AEC applications when creating digital twins, for example.
More point cloud rendering updates include:
- Point clouds can cast and receive dynamic shadows — useful for sun and lighting studies.
- Supports very large data sets, with on-demand streaming of data from files and GPU streaming. A dynamic Level of Detail system keeps performance high, while preserving visual results by prioritizing points in the center of the viewport.
- Render data using simple points or custom Materials.
- Multiple coloration techniques (RGB, Intensity, Elevation, Classification, and so on).
- Extensive color adjustments.
- Accentuate shapes with an Eye-Dome Lighting technique provided by the included post-process Material.
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