n.平截头体
All remaining patches are culled against the viewing frustum.
剩下的缀片通过视见体进行剔除.
This will help the 3 D engine's performance by doing per - object frustum culling.
此举有助于3D引擎对对象的层次视锥剔除运算.
The forming principle of frustum cone - like cup ( container ) is studied.
研究了圆台形纸杯 ( 容器 ) 的成型原理.