| handle | 与 AABB 或网格光线追踪实例关联的句柄。 |
| properties | 要应用到光线追踪实例使用的材质的其他材质属性。 |
更新每个光线追踪实例的材质属性。
与轴对齐包围盒 (AABB) GraphicsBuffer 或 Mesh 关联的光线追踪实例可以使用与其他类似光线追踪实例共享的 Material。
可以使用 MaterialPropertyBlock 参数指定其他每个光线追踪实例的材质属性。当调用此函数时，这些属性将复制到光线追踪实例中。
其他资源：RayTracingAccelerationStructure.AddInstance、RayTracingAccelerationStructure.RemoveInstance。
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