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Published in:
2018 | OriginalPaper | Chapter
Write-Once, Transpile-Everywhere: Re-using Motion Controllers of Virtual Humans Across Multiple Game Engines
Authors : Fabrizio Nunnari, Alexis Heloir
Published in: Augmented Reality, Virtual Reality, and Computer Graphics
Publisher: Springer International Publishing
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Abstract
Transpilation allows to write code once and re-use it across multiple runtime environments. In this paper, we propose a software development practice to implement once the motion controllers of virtual humans and re-use the implementation in multiple game engines. In a case study, three common human behaviors – blinking, text-to-speech, and eye-gaze – were developed in the Haxe programming language and deployed in the free, open-source Blender Game Engine and the commercial Unity engine. Performance tests show that transpiled code executes within 67% faster to 127% slower with respect to an implementation manually written in the game engine target languages.