Understanding the Need for Adaptive Temporal Antialiasing (ATAA)
Recently, NVIDIA worked with Epic to integrate Adaptive Temporal Antialiasing (ATAA) into Unreal Engine 4. This new approach solves for the weakness of TAA (temporal anti-aliasing) - blurring and ghosting artifacts - while remaining light enough to avoid introducing a significant performance hit. ATAA results are remarkably close to what a developer would achieve through 16x supersampling, with operations that fall within a 16ms frame budget.