Version: Unity 6 Preview (6000.0)
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RayTracingInstanceCullingResults.materialsCRC

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public RayTracingInstanceMaterialCRC[] materialsCRC;

Description

An array of Material CRC and instance id pairs generated by RayTracingAccelerationStructure.CullInstances when using RayTracingInstanceCullingFlags.ComputeMaterialsCRC flag.

The array can be used for example to compute a composite CRC of all Materials and reset the convergence during path tracing if the user changed a Material property or Materials used in path tracing were created or deleted.

Additional resources: Material.ComputeCRC, HashUtilities.