void UMaterialInterface::SetForceMipLevelsToBeResident( bool OverrideForceMiplevelsToBeResident, bool bForceMiplevelsToBeResidentValue, float ForceDuration, int32 CinematicTextureGroups )
{
TArray<UTexture*> Textures;
GetUsedTextures(Textures, EMaterialQualityLevel::Num, false, ERHIFeatureLevel::Num, true);
for ( int32 TextureIndex=0; TextureIndex < Textures.Num(); ++TextureIndex )
{
UTexture2D* Texture = Cast<UTexture2D>(Textures[TextureIndex]);
if ( Texture )
{
Texture->SetForceMipLevelsToBeResident( ForceDuration, CinematicTextureGroups );
if (OverrideForceMiplevelsToBeResident)
{
Texture->bForceMiplevelsToBeResident = bForceMiplevelsToBeResidentValue;
}
}
}
}
void UMeshComponent::SetTextureForceResidentFlag( bool bForceMiplevelsToBeResident )
{
const int32 CinematicTextureGroups = 0;
const float Seconds = -1.0f;
TArray<UTexture*> Textures;
GetUsedTextures(/*out*/ Textures, EMaterialQualityLevel::Num);
for (UTexture* Texture : Textures)
{
if (UTexture2D* Texture2D = Cast<UTexture2D>(Texture))
{
Texture2D->SetForceMipLevelsToBeResident(Seconds, CinematicTextureGroups);
Texture2D->bForceMiplevelsToBeResident = bForceMiplevelsToBeResident;
}
}
}
void UMeshComponent::PrestreamTextures( float Seconds, bool bPrioritizeCharacterTextures, int32 CinematicTextureGroups )
{
// If requested, tell the streaming system to only process character textures for 30 frames.
if (bPrioritizeCharacterTextures)
{
IStreamingManager::Get().SetDisregardWorldResourcesForFrames(30);
}
TArray<UTexture*> Textures;
GetUsedTextures(/*out*/ Textures, EMaterialQualityLevel::Num);
for (UTexture* Texture : Textures)
{
if (UTexture2D* Texture2D = Cast<UTexture2D>(Texture))
{
Texture2D->SetForceMipLevelsToBeResident(Seconds, CinematicTextureGroups);
}
}
}
