一种虚拟室内场景对象调度方法

An Algorithm of Scheduling Objects in Virtual Indoor Scene

在具有真实感的虚拟场景中实现实时漫游是构建虚拟场景的关键技术之一。针对室内场景的漫游提出了基于观察者位置和视点方向的对象调度策略。该算法通过合理地载入场景中对象的LOD模型及有效的场景裁剪,极大地加速了漫游时的场景绘制速度,从而实现了在漫游中平滑无延迟地浏览虚拟场景。

The real-time walkthrough in virtual indoor scene is one of the key technologies in virtual scene construction. Based on position of observer and direction of its vision, an algorithm of scheduling objects for the walkthrough in virtual scene is proposed. The algorithm greatly accelerates the rendering speed in the walkthrough by loading virtual object reasonably and clipping scene effectively, and as the result, the algorithm achieves the smooth and un-delayed walkthrough in virtual scene. This algorithm has been implemented in the authors＇ software system and obtained a desirable effect.