Anti - Aliasing

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Aliasing is when jagged lines appear on edges of objects when displayed on a screen. Anti - aliasing is the post process where the engine attempts to mitigate the jaggy-ness of these edges. There are multiple different anti-aliasing solutions out there each with there own level of effectiveness usually proportional to the amount of performance resources they use. Unreal 4 uses FXAA which has a low cost on GPU resources but isn’t as effective as other solutions such as MXAA.



Anti - Aliasing OFF










Anti - Aliasing ON






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