Complementary Unbound

What Complementary Unbound looks like in-game

Everything here follows from the first tile. Once indirect light is traced through the scene, the reflections, clouds and depth of field all have accurate light to work with, which is why they look different from the same effects in Reimagined despite sharing an author and a settings menu. The TAA tile is easy to skip past and is the one that matters most in recorded video, where crawling edges give a shader away faster than anything else.

Complementary Unbound ships 8 headline effects. The previews here are photographic rather than drawn. 8 of 8 are cut directly from Complementary Unbound's own screenshots, chosen by going through the pack's gallery effect by effect, picking the frame where each one is easiest to see and cropping the area where it actually occurs. The whole image opening the page is one of those frames left intact, which lets you place any crop below back into the scene it was taken from.

Compatibility

What you need to run Complementary Unbound

An overview of Complementary Unbound

What Complementary Unbound changes

Unbound replaces Minecraft's lighting rather than its textures, and it does so with the ceiling taken off. The list is short because each entry carries a great deal of weight. What that adds up to in practice:

• Path-traced GI: indirect light is traced through the scene, so a room lit through one window stays lit to the back wall instead of falling to black.
• Screen-space reflections: water, ice and metal reflect what is currently on screen in real time, updating with the camera rather than trailing behind it.
• Volumetric clouds: clouds gain genuine depth and, with traced light beneath them, throw their shade onto the terrain rather than stopping at the layer.
• PBR: with a matching resource pack, every block gains real roughness and metalness, and traced light makes that difference far easier to see.
• Bloom: a measured glow around bright sources, tuned to support the traced lighting rather than to compete with it for the highlights.
• Depth of field: what you look at stays sharp while the background falls away, giving a shot the focal plane a real lens would produce.
• Overall direction: the Complementary look with modern light transport underneath, aimed at people who will stop and take the screenshot.

Complementary Unbound at a glance

Running Complementary Unbound smoothly

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What to turn down first in Complementary Unbound

Unbound traces light, so the sliders that matter are the ones that decide how many rays it can afford and how much of the frame it has to fill.

1. 1

   Depth of field: turn it off for playing. It costs every frame and hides whatever is not at your focal distance.

2. 2

   Path-traced GI quality: lowering it makes the image noisier before it makes it slower, and the temporal filter hides most of that while you stand still.

3. 3

   Screen-space reflections: the cheapest of the three to lose, and the one you notice least once the traced light is doing the heavy work.

TAA should stay on. Without it the accumulated lighting has nothing to settle into and the noise becomes obvious.

How many people run Complementary Unbound?

The heaviest pack in the top five by some distance, which is unusual company for something doing path traced global illumination. It also has fourteen times the downloads of Kappa Shader, its nearest rival in the cinematic category, on similar hardware requirements.

The Complementary Unbound figures above were counted on 21 August 2026. Modrinth is the only platform with an open counter for Complementary Unbound, so anyone downloading it elsewhere is not in this number.

Where Complementary Unbound sits in our shortlists

Path-traced light that survived the jump to the current game version, which is rarer than it sounds:

• Best shaders for high-end PCs
• Best shaders for Minecraft 1.21