RayTrace ShaderPack

A shaderpack that simulates RTX-style ray tracing using screen-space ray marching — the same technique used by SEUS PTGI, Complementary Reimagined, and BSL. True hardware ray tracing isn't accessible from Java Edition shaderpacks (they run on OpenGL, not DXR/Vulkan RT), so this marches rays against the depth buffer each frame to build reflections and a one-bounce GI approximation.

Features

• Ray-marched reflections and diffuse global illumination, temporally denoised
• Real sunlight diffuse lighting with ray-traced-style soft shadows
• Near-mirror water reflections
• Two-pass bloom, ACES tonemapping
• 4 quality profiles (Low/Medium/High/Ultra) plus individually adjustable sliders

Requirements: OptiFine or Iris (Sodium+Iris also works)

Install: drop the zip into .minecraft/shaderpacks/, select it from Video Settings → Shaders.