UDestructibleMesh* ImportDestructibleMeshFromApexDestructibleAsset(UObject* InParent, NxDestructibleAsset& ApexDestructibleAsset, FName Name, EObjectFlags Flags, FSkeletalMeshImportData* OutData, EDestructibleImportOptions::Type Options)
{
// The APEX Destructible Asset contains an APEX Render Mesh Asset, get a pointer to this
const physx::NxRenderMeshAsset* ApexRenderMesh = ApexDestructibleAsset.getRenderMeshAsset();
if (ApexRenderMesh == NULL)
{
return NULL;
}
// Number of submeshes (aka "elements" in Unreal)
const physx::PxU32 SubmeshCount = ApexRenderMesh->getSubmeshCount();
if (SubmeshCount == 0)
{
return NULL;
}
// Make sure rendering is done - so we are not changing data being used by collision drawing.
FlushRenderingCommands();
UDestructibleMesh* DestructibleMesh = FindObject<UDestructibleMesh>(InParent, *Name.ToString());
if (DestructibleMesh == NULL)
{
// Create the new UDestructibleMesh object if the one with the same name does not exist
DestructibleMesh = NewObject<UDestructibleMesh>(InParent, Name, Flags);
}
if (!(Options & EDestructibleImportOptions::PreserveSettings))
{
// Store the current file path and timestamp for re-import purposes
// @todo AssetImportData make a data class for Apex destructible assets
DestructibleMesh->AssetImportData = NewObject<UAssetImportData>(DestructibleMesh);
DestructibleMesh->AssetImportData->Update(UFactory::CurrentFilename);
DestructibleMesh->AssetImportData->bDirty = false;
}
DestructibleMesh->PreEditChange(NULL);
// Build FractureSettings from ApexDestructibleAsset in case we want to re-fracture
#if WITH_EDITORONLY_DATA
DestructibleMesh->CreateFractureSettings();
DestructibleMesh->FractureSettings->BuildRootMeshFromApexDestructibleAsset(ApexDestructibleAsset, Options);
// Fill materials
DestructibleMesh->FractureSettings->Materials.Reset(DestructibleMesh->Materials.Num());
for (int32 MaterialIndex = 0; MaterialIndex < DestructibleMesh->Materials.Num(); ++MaterialIndex)
{
DestructibleMesh->FractureSettings->Materials.Insert(DestructibleMesh->Materials[MaterialIndex].MaterialInterface, MaterialIndex);
}
#endif // WITH_EDITORONLY_DATA
if (!SetApexDestructibleAsset(*DestructibleMesh, ApexDestructibleAsset, OutData, Options))
{
// should remove this destructible mesh. if not, this object causes a crash when ticking because it doesn't have proper rendering resources
// @TODO : creates this destructible mesh after loading data completely
DestructibleMesh->PostEditChange();
DestructibleMesh->ConditionalBeginDestroy();
return NULL;
}
return DestructibleMesh;
}
UDestructibleMesh* ImportDestructibleMeshFromApexDestructibleAsset(UObject* InParent, NxDestructibleAsset& ApexDestructibleAsset, FName Name, EObjectFlags Flags, FSkeletalMeshImportData* OutData, EImportOptions::Type Options)
{
// The APEX Destructible Asset contains an APEX Render Mesh Asset, get a pointer to this
const physx::NxRenderMeshAsset* ApexRenderMesh = ApexDestructibleAsset.getRenderMeshAsset();
if (ApexRenderMesh == NULL)
{
return NULL;
}
// Number of submeshes (aka "elements" in Unreal)
const physx::PxU32 SubmeshCount = ApexRenderMesh->getSubmeshCount();
if (SubmeshCount == 0)
{
return NULL;
}
// Make sure rendering is done - so we are not changing data being used by collision drawing.
FlushRenderingCommands();
UDestructibleMesh* DestructibleMesh = FindObject<UDestructibleMesh>(InParent, *Name.ToString());
if (DestructibleMesh == NULL)
{
// Create the new UDestructibleMesh object if the one with the same name does not exist
DestructibleMesh = CastChecked<UDestructibleMesh>(StaticConstructObject(UDestructibleMesh::StaticClass(), InParent, Name, Flags));
}
if (!(Options & EImportOptions::PreserveSettings))
{
// Store the current file path and timestamp for re-import purposes
// @todo AssetImportData make a data class for Apex destructible assets
DestructibleMesh->AssetImportData = ConstructObject<UAssetImportData>(UAssetImportData::StaticClass(), DestructibleMesh);
DestructibleMesh->AssetImportData->SourceFilePath = FReimportManager::SanitizeImportFilename(UFactory::CurrentFilename, DestructibleMesh);
DestructibleMesh->AssetImportData->SourceFileTimestamp = IFileManager::Get().GetTimeStamp(*UFactory::CurrentFilename).ToString();
}
DestructibleMesh->PreEditChange(NULL);
// Build FractureSettings from ApexDestructibleAsset in case we want to re-fracture
#if WITH_EDITORONLY_DATA
DestructibleMesh->CreateFractureSettings();
DestructibleMesh->FractureSettings->BuildRootMeshFromApexDestructibleAsset(ApexDestructibleAsset, Options);
// Fill materials
DestructibleMesh->FractureSettings->Materials.Reset(DestructibleMesh->Materials.Num());
for (int32 MaterialIndex = 0; MaterialIndex < DestructibleMesh->Materials.Num(); ++MaterialIndex)
{
DestructibleMesh->FractureSettings->Materials.Insert(DestructibleMesh->Materials[MaterialIndex].MaterialInterface, MaterialIndex);
}
#endif // WITH_EDITORONLY_DATA
if (!SetApexDestructibleAsset(*DestructibleMesh, ApexDestructibleAsset, OutData, Options))
{
return NULL;
}
return DestructibleMesh;
}
UNREALED_API bool BuildDestructibleMeshFromFractureSettings(UDestructibleMesh& DestructibleMesh, FSkeletalMeshImportData* OutData)
{
bool Success = false;
#if WITH_APEX
physx::NxDestructibleAsset* NewApexDestructibleAsset = NULL;
#if WITH_EDITORONLY_DATA
if (DestructibleMesh.FractureSettings != NULL)
{
TArray<UMaterialInterface*> OverrideMaterials;
OverrideMaterials.Init(DestructibleMesh.Materials.Num()); //save old materials
for (int32 MaterialIndex = 0; MaterialIndex < DestructibleMesh.Materials.Num(); ++MaterialIndex)
{
OverrideMaterials[MaterialIndex] = DestructibleMesh.Materials[MaterialIndex].MaterialInterface;
}
DestructibleMesh.Materials.Init(DestructibleMesh.FractureSettings->Materials.Num());
for (int32 MaterialIndex = 0; MaterialIndex < DestructibleMesh.Materials.Num(); ++MaterialIndex)
{
if (MaterialIndex < OverrideMaterials.Num()) //if user has overriden materials use it
{
DestructibleMesh.Materials[MaterialIndex].MaterialInterface = OverrideMaterials[MaterialIndex];
}
else
{
DestructibleMesh.Materials[MaterialIndex].MaterialInterface = DestructibleMesh.FractureSettings->Materials[MaterialIndex];
}
}
NxDestructibleAssetCookingDesc DestructibleAssetCookingDesc;
DestructibleMesh.FractureSettings->BuildDestructibleAssetCookingDesc(DestructibleAssetCookingDesc);
NewApexDestructibleAsset = DestructibleMesh.FractureSettings->CreateApexDestructibleAsset(DestructibleAssetCookingDesc);
}
#endif // WITH_EDITORONLY_DATA
if (NewApexDestructibleAsset != NULL)
{
Success = SetApexDestructibleAsset(DestructibleMesh, *NewApexDestructibleAsset, OutData, EDestructibleImportOptions::PreserveSettings);
}
#endif // WITH_APEX
return Success;
}
UNREALED_API bool BuildDestructibleMeshFromFractureSettings(UDestructibleMesh& DestructibleMesh, FSkeletalMeshImportData* OutData)
{
bool Success = false;
#if WITH_APEX
physx::NxDestructibleAsset* NewApexDestructibleAsset = NULL;
#if WITH_EDITORONLY_DATA
if (DestructibleMesh.FractureSettings != NULL)
{
NxDestructibleAssetCookingDesc DestructibleAssetCookingDesc;
DestructibleMesh.FractureSettings->BuildDestructibleAssetCookingDesc(DestructibleAssetCookingDesc);
NewApexDestructibleAsset = DestructibleMesh.FractureSettings->CreateApexDestructibleAsset(DestructibleAssetCookingDesc);
}
#endif // WITH_EDITORONLY_DATA
if (NewApexDestructibleAsset != NULL)
{
Success = SetApexDestructibleAsset(DestructibleMesh, *NewApexDestructibleAsset, OutData, EImportOptions::PreserveSettings);
}
#endif // WITH_APEX
return Success;
}
