#UnifiedRayTracing documentation

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round current
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Is there more documentation available for the new URT API in Unity beyond what's available on https://docs.unity.cn/Packages/com.unity.render-pipelines.core@17.3/manual/UnifiedRayTracing/unified-ray-tracing-api.html ? For example, I'm trying to adapt the sample "Tracing camera rays" example to get the normal at an intersection using UnifiedRT::FetchHitGeomAttributes, but I'm getting the error g_AccelStructInstanceList at kernel index (0) is not set - not sure if this is something I'm supposed to bind or if this is something that is supposed to be automatically handled by the IRayTracingAccelStruct

round current
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I saw there's an AccelStructInstances class that binds to the correct shader params but it's internal