FByteBulkData* UBodySetup::GetCookedData(FName Format)
{
if (IsTemplate())
{
return NULL;
}
IInterface_CollisionDataProvider* CDP = Cast<IInterface_CollisionDataProvider>(GetOuter());
// If there is nothing to cook or if we are reading data from a cooked package for an asset with no collision,
// we want to return here
if ((AggGeom.ConvexElems.Num() == 0 && CDP == NULL) || !bHasCookedCollisionData)
{
return NULL;
}
FFormatContainer* UseCookedData = CookedFormatDataOverride ? CookedFormatDataOverride : &CookedFormatData;
bool bContainedData = UseCookedData->Contains(Format);
FByteBulkData* Result = &UseCookedData->GetFormat(Format);
#if WITH_PHYSX
if (!bContainedData)
{
if (FPlatformProperties::RequiresCookedData())
{
UE_LOG(LogPhysics, Error, TEXT("Attempt to build physics data for %s when we are unable to. This platform requires cooked packages."), *GetPathName());
}
if (AggGeom.ConvexElems.Num() == 0 && (CDP == NULL || CDP->ContainsPhysicsTriMeshData(bMeshCollideAll) == false))
{
return NULL;
}
#if WITH_RUNTIME_PHYSICS_COOKING || WITH_EDITOR
TArray<uint8> OutData;
FDerivedDataPhysXCooker* DerivedPhysXData = new FDerivedDataPhysXCooker(Format, this);
if (DerivedPhysXData->CanBuild())
{
#if WITH_EDITOR
GetDerivedDataCacheRef().GetSynchronous(DerivedPhysXData, OutData);
#elif WITH_RUNTIME_PHYSICS_COOKING
DerivedPhysXData->Build(OutData);
#endif
if (OutData.Num())
{
Result->Lock(LOCK_READ_WRITE);
FMemory::Memcpy(Result->Realloc(OutData.Num()), OutData.GetData(), OutData.Num());
Result->Unlock();
}
}
else
#endif
{
UE_LOG(LogPhysics, Warning, TEXT("Attempt to build physics data for %s when we are unable to."), *GetPathName());
}
}
#endif // WITH_PHYSX
check(Result);
return Result->GetBulkDataSize() > 0 ? Result : NULL; // we don't return empty bulk data...but we save it to avoid thrashing the DDC
}
bool FDerivedDataPhysXCooker::ShouldGenerateTriMeshData(bool InUseAllTriData)
{
check(Cooker != NULL);
IInterface_CollisionDataProvider* CDP = Cast<IInterface_CollisionDataProvider>(CollisionDataProvider);
const bool bPerformCook = ( CDP != NULL ) ? CDP->ContainsPhysicsTriMeshData(InUseAllTriData) : false;
return bPerformCook;
}
