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 FPaperExtractSpritesViewportClient::Draw(FViewport* Viewport, FCanvas* Canvas)
{
// Super will clear the viewport
FPaperEditorViewportClient::Draw(Viewport, Canvas);
UTexture2D* Texture = TextureBeingExtracted.Get();
if (Texture != nullptr)
{
const bool bUseTranslucentBlend = Texture->HasAlphaChannel();
// Fully stream in the texture before drawing it.
Texture->SetForceMipLevelsToBeResident(30.0f);
Texture->WaitForStreaming();
FLinearColor TextureDrawColor = Settings->TextureTint;
//FLinearColor RectOutlineColor = FLinearColor::Yellow;
const FLinearColor RectOutlineColor = Settings->OutlineColor;
const float XPos = -ZoomPos.X * ZoomAmount;
const float YPos = -ZoomPos.Y * ZoomAmount;
const float Width = Texture->GetSurfaceWidth() * ZoomAmount;
const float Height = Texture->GetSurfaceHeight() * ZoomAmount;
Canvas->DrawTile(XPos, YPos, Width, Height, 0.0f, 0.0f, 1.0f, 1.0f, TextureDrawColor, Texture->Resource, bUseTranslucentBlend);
for (FPaperExtractedSprite Sprite : ExtractedSprites)
{
DrawRectangle(Canvas, RectOutlineColor, Sprite.Rect);
}
}
}
