Pennybacker Bridge, HDR Composite (-2, 0, +2) qtpfsgui for tonemapping Mantiuk: contrast mapping = 0.3, saturation = 2. Fattal: alpha=0.1, beta=0.92, sat = 1, nr = 0 Mantiuk as the background layer, 70% Fattal overlay. Slight S-Curve applied via Curves Some additional details