Point cloud

Mathematics

Video game development

Human–computer interaction

Computer graphics (images)

Artificial intelligence

Virtual reality

Rendering (computer graphics)

Geometry

Visualization

Computer science

Point (geometry)

Game engine

Game design

ISPRS Journal of Photogrammetry and Remote Sensing

With the development of 3D measurement systems, dense colored point clouds are increasingly available. However, up to now, their use in interactive applications has been restricted by the lack of support for point clouds in game engines. In addition, many of the existing applications for point clouds lack the capacity for fluent user interaction and application development. In this paper, we present the development and architecture of a game engine extension facilitating the interactive visualization of dense point clouds. The extension allows the development of game engine applications where users edit and interact with point clouds. To demonstrate the capabilities of the developed extension, a virtual reality head-mounted display is used and the rendering performance is evaluated. The result shows that the developed tools are sufficient for supporting real-time 3D visualization and interaction. Several promising use cases can be envisioned, including both the use of point clouds as 3D assets in interactive applications and leveraging the game engine point clouds in geomatics.

Interactive dense point clouds in a game engine