A reinvention of the legacy SEUS versions designed to provide high-quality visuals using traditional rendering methods, resulting in better performance than the PTGI version. Version 1.18 Enhancements (PTGI HRR 3)

Get the version corresponding to Minecraft 1.18 from the OptiFine website and install it.

Sonic Ether’s Unbelievable Shaders (SEUS) for Minecraft 1.18 includes two primary versions: for balanced performance and SEUS PTGI for advanced ray tracing effects. For the 1.18 update, specifically SEUS PTGI HRR 3 was optimized to support larger cave structures and new blocks like candles and glow lichen. Core Versions for 1.18

An experimental shader that uses software-based ray tracing to deliver realistic lighting and reflections without requiring an RTX-specific graphics card.

Select the SEUS pack from the in-game list to activate it.