To tackle all of these elements as best it can, a new Hybrid Reconstruction Anti-Aliasing (HRAA) system is in place for the game. As gleaned from developer Michal Drobot's
SIggraph 2014 presentation, this takes common wisdom from the best post-processing methods available, matching SMAA for image clarity in static moments, while also attempting to iron out any shimmer artefacts owing to a lack of temporal sampling.
I
n practise on PS4, HRAA very successfully attacks Far Cry 4's jagged edges while avoiding residual blur to texture-work - a shortcoming pinned on lower-quality presets of the popular FXAA. Geometric aliasing is tricky to catch indeed,
and in dealing with the final rasterizsd target, sub-pixel elements are also thoroughly treated. In static shots, the game still retains its sharpness in all the right places.