XFSDK EnhancedSMAA is a rendering plugin for Unreal Engine 5 that provides enhanced Subpixel Morphological Anti-Aliasing (SMAA), combining high-quality spatial anti-aliasing with optional two-frame temporal filtering and FidelityFX RCAS sharpening.

Designed to reduce jagged edges while preserving image clarity, Enhanced SMAA provides configurable anti-aliasing modes, depth-assisted edge detection, temporal reprojection, and advanced shader controls.

Demo Video: https://youtu.be/2Y1bUcZVHXU

Documentation: https://unreal-engine-ace7bf.gitlab.io/docs/xfsdk-light/anti-aliasing

Demo build(Contains Epic SMAA and TAA to comapre) : https://mega.nz/file/kVt3FJwA#arr5vkR-6aX5lZaD_ltM_An_sbGFniIAMskFTMPR23k

Key Features

• SMAA 1X: Spatial anti-aliasing with edge detection, blending weight calculation, and neighborhood blending.

• SMAA T2X: Two-frame temporal anti-aliasing using jittered sampling, motion vectors, and history reprojection.

• FidelityFX RCAS Sharpening: Optional sharpening after temporal reconstruction.

• Depth-Based Predication: Improves edge detection using scene depth information.

• HDR-Aware Edge Detection: Supports tonemapped edge detection for HDR rendering.

• FP16 Shader Optimization: Optional native 16-bit shader arithmetic on supported GPUs.

• Adjustable Quality Settings: Control search steps, diagonal detection, corner rounding, history weighting, and motion rejection.

Enhanced SMAA integrates into Unreal Engine's rendering pipeline and provides an alternative anti-aliasing solution with direct control over spatial and temporal processing.