Radiant
Daniel · Shader pack
A cinematic yet playable Horizon shader pack: warm sun, soft shadows, god rays, golden haze, sunset clouds and rain-soaked ground.
Horizon loads two kinds of shader packs: its own .hshader packs (WGSL written for its renderer and checked before they run) and the usual Iris/OptiFine packs, read by a separate loader — not every one of those looks exactly as it does on Iris yet. Listed here are the registry packs made for Horizon. We tag how hard each one hits your GPU: light ones suit a laptop with integrated graphics, heavy ones are for screenshots on a strong PC.
Daniel · Shader pack
A cinematic yet playable Horizon shader pack: warm sun, soft shadows, god rays, golden haze, sunset clouds and rain-soaked ground.
Reminuscul · Shader pack
A bright, enchanting world: painted sky, volumetric clouds, sunbeams, soft shadows, living water and colored lights.
Yes — a separate Horizon loader reads them from the same shaderpacks folder. It was written from a spec of the format, so some packs don't look quite like they do on Iris yet. The shader install guide has the details.
Filter by "Light on FPS". On integrated graphics start with the simplest pack and lower your render distance.
Registry packs install from the launcher (Mods page, Shader packs tab) into the shaderpacks folder; a pack from elsewhere goes into the same folder by hand. Then pick it from the Shader Packs list in the game's options. The guide walks through it.