Other players providing real-time 3D analysis and visualisation platforms for a wider range of industries includes Twinsity, Bentley LumenRT, OpenCities Planner, Urban Circus Urban-Engine, GeoCirrus.įrom a geospatial point of view, game-engines provide alternative real-time 3D platforms to create high quality geographic visualisation and simulations.
Capturing reality photogrammetry how to clean up mesh software#
Major players include Cesium, Skyline Software Systems TerraExplorer, ArcGIS pro, ArcGIS CityEngine, Euclideon udStream which provide a range of analysis and simulation tools on top of powerful 3D visualisation capabilities. Geospatial Industry specific real-time 3D environment platforms able to ingest complex 3D photogrammetry data have been available for more than a decade. In the recent years, we have seen these companies make use of 3D photogrammetry techniques to automatically generate entire cities in 3D. Google, Apple and Microsoft have largely been responsible for the democratisation of GIS by initiating the transition between a geospatial specialist-dominated community of few hundreds of thousands to the general public with millions of users and growing. Geospatial data and real-time 3D visualisation Besides simulation for training and military applications, the most popular game using real-world geographic data has been “ Microsoft Flight Simulator” with a huge selection of scenery packs and add-ons based on aerial orthophotography. Geographic data is used as input information during a game’s development phases to give the developers real-world information to build their maps on and emulate real environments to improve player immersion and familiarity.įor example, this is the case for “Call of Duty” based in Iraq and “Grand Theft Auto” in California. These maps are used as a base for the creation of fantasy worlds or designed to simulate real-world environments. Maps and by extension the spatial aspect of them are a core component of virtual worlds used in video games. These game-engines provide a large set of powerful tools to allow developers to focus on the creative process. The two major players include Epic Games’ Unreal-Engine, Unit圓D. Outside their original purpose, game-engines are rapidly evolving to provide 3D creation environments to deliver immersive and interactive content across many industries such as the film and entertainment industry, training and simulation, architecture, and design.
Large 3D city models generated using photogrammetry techniques are also being directly integrated into Unreal Engine and Twinmotion to create realistic digital representations of the real-world environment. A great example of increased cooperation between the geospatial and gaming industry is the announcement that Cesium will be making geospatial data available through Unreal Engine. With an easier access to processing power, photogrammetry tools, advanced computer graphics and image processing capabilities, many of these distinct fields are now merging and interacting more widely. Photogrammetry has now been used for more than 150 years by the mapping and surveying industry and it is now used in many other fields such as architecture and cultural heritage, geology and archaeology, engineering and more recently in the film and gaming industry. Photogrammetry appeared in the middle of the 19th century and was first used to produce topographic maps.
The photographs can be taken from the ground with a hand-held camera, through a rig or mounted in a drone, helicopter, or fix-wing platforms or from satellite. Photogrammetry can be applied regardless of the size of the objects to be digitally re-created from a small rock to an entire city. The photographs are then stitched together using the principle of triangulation through specialised photogrammetry software such as Bentley ContextCapture, Capturing Reality Realit圜apture, Agisoft Metashape, Skyline Photomesh, nFrames Sure to produce a detailed, geometrically accurate and textured 3D mesh of this asset. Photogrammetry is the process of generating a three-dimensional representation of an asset using overlapping high-resolution photographs taken from multiple angles. This article gives an overview of where the technology stands today and where are we heading. Before being game-ready, 3D assets generated by photogrammetry need to be optimised to reduce rendering cost and hardware/software limitations. While computing power and GPU is increasing, there is still a limit to the amount of 3D data which can be displayed in real-time. Originally used by the mapping and surveying industry, photogrammetry is now being used more and more in the gaming industry to create ultra-realistic 3D assets and produce immersive and interactive real-time 3D environments.
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