Virtual reality (VR) volleyball games can provide an immersive entertainment experience and facilitate users to get familiar with game rules. In real world, players often experience emotions from scores, strokes, passes, and the influence from their teammates or opponents, and so forth. However, seldom studies are carried out for this emotional experience in a virtual environment, as most VR volleyball games mainly concentrate on the game playing, such as body movements. In this article, we propose to enhance emotional experience by building emotional virtual characters in VR volleyball games. The virtual characters cannot only arouse their emotions but also express their facial expressions according to the game situation. Emotion patterns are learned from real-world volleyball matches. The results demonstrate that our framework has great potential to enhance the user's emotional experience and engagement.

中文翻译：

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通过在 VR 排球游戏中构建情感虚拟角色来增强情感体验

虚拟现实（VR）排球游戏可以提供身临其境的娱乐体验，方便用户熟悉游戏规则。在现实世界中，球员经常会从得分、击球、传球以及队友或对手的影响等方面体验情绪。然而，很少有人对虚拟环境中的这种情感体验进行研究，因为大多数 VR 排球游戏主要集中在游戏玩法上，例如身体动作。在本文中，我们建议通过在 VR 排球游戏中构建情感虚拟角色来增强情感体验。虚拟角色不仅可以激发他们的情绪，还可以根据游戏情况表达他们的面部表情。情绪模式是从现实世界的排球比赛中学习的。