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Spectrum: Optical

An engineering optical mod about directing, focusing, and filtering light beams using mirrors and lenses to interact with the world.
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Spectrum: Optical 0.0.4 Beta

File namespectrum-0.0.4.jar
Uploader
BeykusYBeykusY
Uploaded
Jul 15, 2026
Downloads
10
Size
279.7 KB
Mod Loaders
Fabric
File ID
8439394
Type
B
Beta
Supported game versions
  • 1.21.1

Curse Maven Snippet

Fabric

modImplementation "curse.maven:spectrum-optical-1585656:8439394"

Learn more about Curse Maven

What's new

Spectrum: Optical 0.0.4 Beta

Added

  • Added the Photon Furnace with 12 spectrum-dependent processing recipes.
  • Added infrared, red, green, blue, ultraviolet and white processing modes.
  • Added a guided advancement chain with staged recipe unlocking.
  • Added localized machine diagnostics and tooltips in English and Russian.

Changed

  • Beams now carry real optical power measured in LU/t.
  • The Photon Furnace receives energy directly from the incoming beam and no longer requires adjacent energy storage.
  • The basic redstone emitter produces control light but cannot provide free energy to machines.
  • Mirrors, lenses, splitters and stained glass now introduce optical power losses.
  • White light can process colored recipes with a 25% power and energy penalty.
  • Mixed colors no longer cause teleportation or levitation.

Fixed

  • Fixed beam and Photon Furnace status flickering.
  • Fixed negative energy values and 16-bit GUI synchronization overflow.
  • Fixed incorrect IR and UV classification.
  • Fixed accumulator access through multiblock walls.
  • Fixed beam loops, invalid paths, unloaded chunk access and corrupted NBT handling.
  • Fixed partial energy extraction and several inventory/output edge cases.

Technical

  • Consolidated beam-path serialization, rendering, lens input data and GUI synchronization.
  • Added packet validation, 19 automated tests and GitHub Actions CI.
  • Verified dedicated-server startup with Minecraft 1.21.1.

Requirements

  • Minecraft 1.21.1
  • Fabric Loader 0.19.3+
  • Fabric API
  • Fabric Language Kotlin
  • Java 21

This mod has no related projects