For years, Sonic Ether’s Unbelievable Shaders (SEUS) were synonymous with the "classic" Minecraft shader look—bright sunrises, wavy water, and heavy bloom. However, is a completely different beast. It attempts to bring real-time ray tracing features to Minecraft without requiring an RTX card.

Let’s break down the current state of ray tracing in Minecraft.

Historically, running SEUS PTGI was a nightmare. It was originally designed for OptiFine, which is notorious for bloated code and poor mod compatibility.