Complementary Shaders - Unbound

Complementary Unbound is a semi-realistic shader pack for Minecraft Java Edition that runs on Iris and OptiFine, covering versions from 1.7.10 through 1.21. It transforms lighting, water, shadows, and sky rendering with colored ambient light, volumetric clouds, and dynamic weather effects. The pack ships with presets from Low to Screenshot so players can tune visual quality to match their hardware.

Moonlit skies, volumetric clouds, and reflective water

Complementary Unbound is built around a semi-realistic look that enhances the natural palette of the game without drifting into photorealism. Colored lighting tints blocks and mobs to match nearby light sources: a torch casts warm orange hues and a soul lantern spreads cold blue light. Water rendering uses screen-space reflections and wave simulation, making rivers and oceans feel genuinely alive. At night, that same colored lighting carries over to the sky, so moonlight reflects off water and lingering fog softens the horizon instead of flat vanilla darkness.

• Colored lighting: blocks and entities pick up tints from nearby light sources
• Volumetric clouds with sun shafts and fog that blend through different biomes
• Dynamic weather with rain, snow, and wind movement on foliage
• Screen-space reflections on water surfaces
• Night sky rendering with moonlit water reflections and lingering fog instead of flat vanilla darkness
• Soft shadows with configurable penumbra size
• Bloom and depth of field on High and Screenshot presets

Complementary Unbound vs Complementary Reimagined

Unbound and Reimagined are the two style presets built into every Complementary Shaders release from EminGT. They share the same rendering code and feature set, and the difference is which settings are switched on by default. Complementary Reimagined leans toward preserving Minecraft's own vanilla feel out of the box, while Unbound is set up for a more realistic image from the first launch. Either style can be reconfigured to match the other in Shader Options, so the choice is a starting point rather than a limit.

• Unbound ships with volumetric, non-blocky clouds by default; Reimagined starts with clouds closer to vanilla's blocky shape
• Unbound defaults to enhanced, reflective water; Reimagined starts with a flatter, more vanilla-like water surface
• Both styles use the same colored lighting, shadow, and weather systems underneath, so either one can be tuned toward the other

Performance and Presets

Complementary Unbound ships with named preset profiles that scale the rendering load without requiring manual settings changes. The Low preset disables the most GPU-intensive features, keeping core lighting improvements but cutting volumetric effects. High and Screenshot presets unlock the full feature set, including high-resolution shadows and enhanced ambient occlusion.

• Low: core colored lighting, minimal volumetrics, reduced shadow distance
• Medium: balanced lighting and cloud detail for mid-range GPUs
• High: full shadow quality, volumetric clouds, and reflections
• Screenshot: maximum fidelity for stills and recordings

How to Install Complementary Unbound with Iris or OptiFine

1. 1.Download the shader zip from the Modrinth project page.
2. 2.Install Iris for Minecraft via Fabric, or install OptiFine as a standalone mod.
3. 3.Launch Minecraft Java Edition with the Iris or OptiFine profile.
4. 4.Open Options, then Video Settings, then Shader Packs.
5. 5.Click Open Shader Pack Folder, paste the Complementary Unbound zip inside, return and select it from the list.
6. 6.Apply settings and choose a preset from the shader menu to match your hardware.

For side-by-side steps covering Fabric, NeoForge, and the legacy OptiFine route, the site's Minecraft shader installation guide walks through the same setup in more depth, including what Bedrock Edition offers instead.

Compatibility with Mods

Complementary Unbound pairs well with most visual mods. When using Iris with Fabric, Sodium runs alongside it for additional frame rate gains. Mods that add custom blocks or entities generally receive colored lighting automatically, though some modded light sources may not propagate color unless the mod explicitly supports it. Distant Horizons compatibility depends on the Iris version and shader configuration in use. For more visual options on top of the base pack, Euphoria Patches is an add-on built specifically for Complementary Shaders that adds extra settings without replacing the core pack.