Version: 2023.1
public int layerMask ;

描述

A 32-bit mask that controls which layers a GameObject must be on to add it to the RayTracingAccelerationStructure.

Unity interprets the mask as binary. So a mask value of -1 allows you to add renderers from all layers to the structure, a value of 1 only allows objects on layer 0, and a value of 2 only allows objects on layer 1, for example.