To reduce the polygon count I made the haystack hollow.

为了减少多边形计数，我制作了空心草堆。

youdao

Many resolution ratio model surface simplify algorithm come with one simple model approximate to say the primitive high-resolution model, reduce polygon that model show count, accelerate scene draw.

多分辨率模型表面简化算法用一简单的模型来近似表示原始的高分辨率模型，减少模型表示的多边形数，从而加速场景绘制。

youdao

Many resolution ratio model surface simplify algorithm come with one simple model approximate to say the primitive high-resolution model, reduce polygon that model show count, accelerate scene draw.

多分辨率模型表面简化算法用一简单的模型来近似表示原始的高分辨率模型，减少模型表示的多边形数，从而加速场景绘制。

youdao