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World Partition - HLOD: Fix landscape HLODs being all black when using Nanite Landscapes

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* Include Nanite landscape scene proxy in the scene capture as these are the ones that are actually visible when rendering LS with Nanite support
#jira none
#rb philippe.deseve
#preflight 6453cc916538e45f752661bf

[CL 25335988 by Sebastien Lussier in ue5-main branch]
This commit is contained in:
Sebastien Lussier
2023-05-04 11:35:05 -04:00
parent e003cfd4a1
commit f10842a8e6
1 changed files with 24 additions and 5 deletions
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Engine/Source/Developer/MaterialUtilities/Private/MaterialUtilities.cpp
+24 -5
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@@ -1011,17 +1011,36 @@ static bool ExportLandscapeMaterial(const ALandscapeProxy* InLandscape, const TS
bool FMaterialUtilities::ExportLandscapeMaterial(const ALandscapeProxy* InLandscape, FFlattenMaterial& OutFlattenMaterial)
{
TSet<FPrimitiveComponentId> ShowOnlyPrimitives;
bool bExportSuccess = false;
for (ULandscapeComponent* LandscapeComponent : InLandscape->LandscapeComponents)
if (InLandscape)
{
if (ensure(LandscapeComponent->SceneProxy))
TSet<FPrimitiveComponentId> ShowOnlyPrimitives;
// Include all landscape components scene proxies
for (ULandscapeComponent* LandscapeComponent : InLandscape->LandscapeComponents)
{
ShowOnlyPrimitives.Add(LandscapeComponent->SceneProxy->GetPrimitiveComponentId());
if (LandscapeComponent && LandscapeComponent->SceneProxy)
{
ShowOnlyPrimitives.Add(LandscapeComponent->SceneProxy->GetPrimitiveComponentId());
}
}
// Include Nanite landscape scene proxy - these are the ones that are actually visible when rendering LS with Nanite support
if (InLandscape->NaniteComponent && InLandscape->NaniteComponent->SceneProxy)
{
ShowOnlyPrimitives.Add(InLandscape->NaniteComponent->SceneProxy->GetPrimitiveComponentId());
}
bExportSuccess = ::ExportLandscapeMaterial(InLandscape, ShowOnlyPrimitives, {}, OutFlattenMaterial);
}
if (!bExportSuccess)
{
UE_LOG(LogMaterialUtilities, Warning, TEXT("ExportLandscapeMaterial: Failed to export material for the provided ALandcapeProxy (%s)"), InLandscape ? *InLandscape->GetName() : TEXT("<null>"));
}
return ::ExportLandscapeMaterial(InLandscape, ShowOnlyPrimitives, {}, OutFlattenMaterial);
return bExportSuccess;
}
bool FMaterialUtilities::ExportLandscapeMaterial(const ALandscapeProxy* InLandscape, const TSet<FPrimitiveComponentId>& HiddenPrimitives, FFlattenMaterial& OutFlattenMaterial)