9/1/2017 2:06:22 PM
Google ARCore SDK releases Unreal Engine support
Game Development SDK,Game Development Platform,AR Development,AR SDK
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App Developer Magazine

Google ARCore SDK releases Unreal Engine support



Richard Harris Richard Harris in Augmented Reality Friday, September 1, 2017
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Augmented reality for Google Android phones with new ARCore SDK with support for Unreal Engine.

Google has announced ARCore, bringing augmented reality (AR) functionality to Android smartphones. Developers can immediately get started with Google’s developer preview of ARCore, which also includes Unreal Engine support. ARCore enables AR development across Android ecosystem, giving developers the ability to make compelling AR experiences without the need for any additional hardware.

The ARCore SDK supports the Google Pixel, Pixel XL, and the Samsung Galaxy S8 running Android 7.0 Nougat and above. As the developer preview is refined, Google is adding new devices, with a target of 100 million devices at launch.

“Augmented reality is the next step in the evolution of the smartphone, and Unreal Engine developers are already hard at work on great AR experiences. ARCore will help further drive AR adoption by empowering developers to build and ship cross-platform AR experiences. We encourage the Unreal community to check out today’s early access Unreal Engine 4 support for ARCore on GitHub as well as the preview coming in Unreal Engine 4.18.” - Mark Rein, Co-Founder and Vice President, Epic Games

In a blog post by Nick Whiting, Technical Director of VR and AR, Epic Games, he described the new features as follows:

Motion Tracking


"As your mobile device moves through the world, ARCore combines visual data from the device's camera and inertial measurements from the device's IMU to estimate the pose (position and orientation) of the camera relative to the world over time. This process, called visual inertial odometry (VIO), lets ARCore know where the device is relative to the world around it. By aligning the pose of the virtual camera that renders your 3D content with the pose of the device's camera provided by ARCore, virtual content is rendered from the correct perspective. Rendered virtual images are then overlayed on top of the image obtained from the device's camera, making it appear as if the virtual content is part of the real world."

Environmental Understanding


"ARCore is constantly improving its understanding of the real world environment by detecting feature points and planes. Feature points are visually distinct features in the captured camera image that ARCore can recognize even when the camera's position changes slightly. ARCore estimates pose changes by triangulating on these feature points between successive frames."

"ARCore looks for clusters of feature points that appear to lie on common horizontal surfaces, like tables and desks, and makes these surfaces available to your app as planes. ARCore can also determine each plane's boundary and make that information available to your app. You can use this information to place virtual objects resting on flat surfaces, such as a character running around on the floor or a table."

Light Estimation


"Finally, through light estimation ARCore can detect information about the lighting of its environment and provide you with the average intensity of a given camera image. This information enables you to light your virtual objects under the same conditions as the environment around them, increasing the sense of realism."



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