You need to implement clipping, so that you don't render the object (i.e. pass it through the graphics pipeline) when it's not visible.
There are many techniques and algorithms/data structures for this, ranging from manual view frustum-testing, to more advanced spatial-querying data structures (BSPs, quadtrees, octrees and so on).
发布评论
评论（1）
您需要实现 clipping，这样您就不会渲染对象（即当它不可见时将其通过图形管道传递）。
为此有许多技术和算法/数据结构，包括手动视图平截头体测试，到更高级的空间查询数据结构（BSP、四叉树、八叉树 等等）。
You need to implement clipping, so that you don't render the object (i.e. pass it through the graphics pipeline) when it's not visible.
There are many techniques and algorithms/data structures for this, ranging from manual view frustum-testing, to more advanced spatial-querying data structures (BSPs, quadtrees, octrees and so on).