当前实用性较强的射线追踪方法，包括波前法，最短路径法，走时插值法，程函方程有限差分法等。
More practical ray tracing methods currently include the wavefront method, the shortest path method, the travel time epenthesis method, the eikonal equation finite difference method, etc.
三维波前重建法射线追踪过程中可以保证稳定合理的射线密度，克服了常规射线追踪方法存在阴影区的问题。
The 3d wavefront construction method ray tracing can ensure stabile and reasonable density of rays, avoid the shadow problems in those traditional methods for ray tracing.
三维波前重建法射线追踪过程中可以保证稳定合理的射线密度，克服了常规射线追踪方法存在阴影区的问题。
The 3d wavefront construction method ray tracing can ensure stabile and reasonable density of rays, avoid the shadow problems in those traditional methods for ray tracing.
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