unity 远近剔除

Unity中的远近剔除是指根据距离将超过一定范围的物体从渲染中剔除掉。通过设置摄像机的layerCullDistances属性，可以定义每个图层的剔除距离。例如，可以使用以下代码来设置距离超过50米的"grass"图层物体被剔除掉：

float[] distances = new float[32];
distances[LayerMask.NameToLayer("grass")] = 50;
camera.layerCullSpherical = true;
camera.layerCullDistances = distances;

这样，当物体离开视线超过50米后，它们就会在渲染中消失。远近剔除通常用于设置小型物体，以减少渲染开销和优化性能。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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