Where does Nanite decide it needs to batch draw calls?

Development Rendering
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When using Nanite where does the rendering pipeline decide a draw call is using the same Materials/Resources and should just use a cached draw call or create a new draw call?
From what I can tell if the material instance and used resources are the same it will batch the draw calls together.

Any help is appreciated.

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Iā€™d track down the original nanite presentations and information about the new programmable raster system, Nanite rendering is a hugely complicated system and I would advise you to look into the articles written by the devs.

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Found what I was looking for in NaniteShading.cpp

ShadingPipeline.ShaderBindings = MakePimpl<FMeshDrawShaderBindings, EPimplPtrMode::DeepCopy>();

UE::MeshPassUtils::SetupComputeBindings(BasePassShader, &Scene, FeatureLevel, SceneProxy, *MaterialProxy, *ShadingPipeline.Material, ShaderElementData, *ShadingPipeline.ShaderBindings);

ShadingPipeline.ShaderBindingsHash = ShadingPipeline.ShaderBindings->GetDynamicInstancingHash();

As long as the ShaderBindingsHash is different the draw calls will be separate.

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