Soft Voxels Lite — Shaders for Minecraft

Soft Voxels Lite — Shaders for Minecraft

Soft Voxels Lite is a free, lightweight version of RRe36's Soft Voxels shaders for Minecraft. Instead of chasing photorealism, this build focuses on soft, ray-traced lighting: there's no classic shadowmap — light is calculated through a voxel grid using path tracing, so direct sunlight and moonlight come out diffused, giving the pack its signature moody, overcast look. The full version is paid; this one is built for weaker hardware.

Visual Features

Instead of a shadowmap, the pack runs a light-propagation-volume and path-tracing combo that produces colored bounce lighting from light sources.

• Lighting: ray-traced, with colored highlights from emitters. A Soul Lantern casts a cool, bluish tint, while a regular Lantern gives a warm one; light doesn't flood the whole space evenly.

• Shadows: soft, with no hard edges — the diffused ray blurs them.

• Water: screen-space reflections (SSR) and a moving wave.

• Sky: a custom skybox with flat 2D clouds covering the whole sky, so the weather leans cloudy more often than clear.

• Extras: dynamic fog, godrays, and swaying leaves and grass.

In caves and the Nether, ray-traced lighting keeps visibility readable — there's no pitch blackness even without a torch.

Soft lighting through colored glass

Room lighting using a Block of Redstone

Performance

On Modrinth, the pack is tagged "Medium." The minimum is a GTX 1050 / RX 560 with OpenGL 4.3 support; for 1080p at default settings, the developer recommends a GTX 1660 / RX 5600 XT or better. It runs on Windows and Linux; Intel HD 5000 and older won't launch it.

The main performance lever is TAAU temporal upscaling: lighting is calculated at a reduced internal resolution and reconstructed to full resolution. Lower values mean more FPS at the cost of sharpness; higher values, the reverse.

Lighting falling from multiple sources

Settings

In the shader menu (Iris or OptiFine), the settings most worth adjusting are:

• Internal resolution (TAAU) — the main trade-off between FPS and sharpness.

• SSR, godrays, fog, leaf sway — toggle independently; turning off the heavier effects boosts your frame rate.

Resource Pack Compatibility

The pack reads specular maps under the LabPBR specification and works with PBR resource packs built to that standard: metals, wet surfaces, and polished surfaces get proper highlights. With regular resource packs, the image stays without this extra material detail.

Conclusion

Soft Voxels Lite nails one job: ray-traced, colored, soft lighting without a heavy FPS hit, making it a solid fit for mid-range hardware that can't handle full path-tracing packs. The moody, overcast look and lack of hard shadows are a stylistic choice — this build isn't meant for sharp shadows and clear skies. It's also limited by its supported version range (up to 1.20.1) and its closed license. For a broader set of effects in the same style, there's the full, paid version of Soft Voxels.