老外写的GPU加速的raycasting算法，硬件加速算法用CG编写。对学习硬件加速的体绘制算法很有用-Written by foreigners GPU-accelerated raycasting algorithms, hardware-accelerated CG algorithm used to prepare. Learning hardware-accelerated volume rendering algorithm is useful

光线投射算法实现 可使用输入体数据 内含raw格式数据-Ray-casting algorithm using the input data can be contained. Raw data format