摘要
该文利用光学映射虚对象的概念 ,提出了实时计算平面折射虚物体的新方法 ,给出了在不同情况下实时计算平面折射虚顶点的计算公式 ,实现了基于三维图形硬件 (加速卡 )加速的实时光线跟踪算法 .该算法能够处理非线性平面折射和反射问题 ,极大地提高了真实感图形绘制和显示的速度 .这对于建筑物实时漫游、实时动画和虚拟现实等领域具有非常广阔的应用前景 .
Based on the concept of virtual optical mapping objects, a new method for calculating in real-time virtual objects is proposed, while formulae for computation of virtual vertices of objects in planar scenes are derived. A real-time hardware-accelerated ray tracing algorithm is implemented in C++, dealing with non-linear reflections and refractions in a unified way. It is powerful for interactive applications such as real-time walkthroughs in buildings, animation and virtual reality.
出处
《计算机学报》
EI
CSCD
北大核心
2002年第9期923-929,共7页
Chinese Journal of Computers
基金
国家自然科学基金 (5 9875 0 47
69873 0 2 5 )资助
