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# Solstice v1.0 A lightweight semi-realistic shader pack built for a high performance-to-quality ratio. (developed and tuned on an RX 6600 at 1440p). ## Features - Real-time PCF shadows with per-pixel distortion (sharp near, cheap far, no warping on builds) - Colored translucent shadows: sunlight through water turns blue with animated caustics - Volumetric raymarched clouds with self-shadowing, silver linings, wind drift, and a high cirrus layer - Cloud shadows on terrain, matching the sky overhead - Screen-space god rays (sun/moon, above and below water) with source-occlusion checks - SSR water reflections - terrain, trees, and builds mirrored on water; depth-aware - (clear shallows, mirror depths) with sky-gradient fallback - Procedural fluid water: Gerstner-style traveling waves, sea-state variation, rain ripples - Unified atmospheric fog: fog is the sky gradient (aerial perspective), render-distance - fade dissolves into it seamlessly - Full weather system: bright diffuse overcast, dark slate thunderstorms, localized lightning - flashes that light the cloud deck from within, emissive lightning bolts - Procedural circular sun and phase-accurate circular moon - Dynamic held-item lighting (torch in hand lights the world) - Dark survival nights, warm Nether ambient (adjustable in-game) - HDR pipeline: bloom, ACES tonemapping, FXAA-lite edge smoothing, dithering ## Settings Four profiles: **Low** / **Medium** / **High** / **Ultra** (shader options screen), plus four option screens: Shadows, Sky & Clouds, Visuals, Color & Tone. Notable sliders: Cloud Coverage, Cloud Speed, Nether/End Brightness, Fog Density. ## Requirements Iris (bundled with Fabulously Optimized). OptiFine untested; Iris-exclusive uniforms (thunderStrength, lightningBoltPosition, hasSkylight) degrade gracefully if absent. ## Performance notes Shadows are the dominant cost, lower Shadow Resolution/Distance first. Clouds cost only on sky pixels (Cloud Quality slider). SSR costs only near water. Everything else is cheap. ## Authors _d0mkaaa_