To improve the speed,accelerating algorithm for ray tracing is fully studied and compared and an improved 3d-DDA ray tracing algorithm based on auto-grouping is presented.是什么意思_To improve the speed,accelerating algorithm for ray tracing is fully studied and compared and an improved 3d-DDA ray tracing algorithm based on auto-grouping is presented.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句