MultiResolutionRenderer: actually use pre-allocated mask arrays...

src/main/java/bdv/viewer/render/MultiResolutionRenderer.java

@@ -680,7 +680,7 @@ public class MultiResolutionRenderer
 		}
 //		for ( int i = bestLevel - 1; i >= 0; --i )
 //			levels.add( getTransformedSource( viewerState, spimSource, screenScaleTransform, i ) );
-		return new VolatileHierarchyProjector< T, ARGBType >( levels, source.getConverter(), screenImage, numRenderingThreads, renderingExecutorService );
+		return new VolatileHierarchyProjector< T, ARGBType >( levels, source.getConverter(), screenImage, maskArray, numRenderingThreads, renderingExecutorService );
 	}
 
 	private static < T > RandomAccessible< T > getTransformedSource( final ViewerState viewerState, final Source< T > source, final AffineTransform3D screenScaleTransform, final int mipmapIndex )