Remove Procedural Mesh data from large .umap?

Development World Creation
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1

I have a Procedural Mesh Component that gets generated everytime the level is loaded. But unfortunately, it seems to be making my .umap file unnecessarily big. Is there a way to flag the component so it doesn’t save the generated mesh data in the .umap file?

2

I figured out a way to shrink my .umap from 30megs to 91kb (!!!). My Git LFS will be much happier now.

Basically I subclassed the PMC class and inside the Serialize I remove all the mesh data, and then flag the owning actor to rebuild after the save is done.


void UMyProceduralMeshComponent::Serialize( FArchive & a ) {

    dlogf( "UMyProceduralMeshComponent::Serialize save=%d load=%d", a.IsSaving(), a.IsLoading() );
   dprintfScope();

   if ( a.IsSaving() && GetNumSections() > 0 ) {
      dlogf( "erase mesh data before serializing, save .umap file size" );
      // weird hack, remove all mesh data if saving
      ClearAllMeshSections();
      ClearCollisionConvexMeshes();
      if ( stadium ) {
         stadium->Dirty = true;
         //stadium->Build();
      }
   }

    Super::Serialize( a );

}