Spectrum Shaders - The Cinematic Realism

Created By: Zombye

Zombye´s Discord Here

Description

Spectrum is a Minecraft: Java Edition shaderpack, and it is currently in alpha.
It aims to provide a "natural" look and feel.

Details

Spectrum Shader brings cinematic realism to Minecraft without relying on modern ray tracing or RTX hardware. This shaderpack is licensed under MIT and focuses on delivering immersive visuals with efficient code. It simulates soft sunlight, realistic shadow gradients, subtle ambient lighting, and a vibrant but natural color palette — all without requiring path tracing.

Lighting in Spectrum Shader feels smooth and diffused, with gradual transitions between brightness and darkness that mimic real-world conditions. Colors are enhanced through smart tone mapping, giving the world a rich and lively look without oversaturation. Subtle bloom and gentle depth of field effects help create a cinematic atmosphere, making even the simplest Minecraft builds feel like scenes from a film.

Reflections are simulated using screen-space techniques, which give water and flat surfaces a realistic sheen without the performance cost of full ray tracing. The sky and clouds shift smoothly with time of day, offering realistic sunsets and sunrises along with layered volumetric cloud effects. Despite its visual depth, the shader is surprisingly lightweight and runs well on mid-range GPUs — no RTX required.

Originally designed in GLSL and compatible with Minecraft versions 1.20+ using Iris + Sodium, Spectrum Shader is easy to install and open for community use or modification. Since it's MIT-licensed, you're free to use, edit, redistribute, or expand upon it — just include credit to the original author. Whether you're building a realistic survival base or crafting cinematic adventures, Spectrum Shader brings clarity, warmth, and emotion to your Minecraft world.

Requirements

- Hardware and drivers that support OpenGL 4.4

- Iris Shaders (OptiFine is not recommended)

Note: I currently only have access to Nvidia GPUs for testing.
Because of this, I cannot ensure that Spectrum will work properly for AMD and Intel GPUs.
That said, I will still try to fix any issues that occur for AMD and Intel users.

License from Spectrum Shaders

The MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Created By: Zombye

Requirements

License from Spectrum Shaders

The MIT License

Copyright (C) 2017-2018 Jacob Eriksson