Spectrum: Optical
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An engineering optical mod about directing, focusing, and filtering light beams using mirrors and lenses to interact with the world.
Focuses on automation and resource processing through scientific and mechanical means, utilizing systems like electricity (RF/FE/etc), air pressure, or rotation.
Features machines that produce and store energy or resources.
Includes quality of life improvements and small tweaks to enhance and customize gameplay.
Projects that have been proven to or clearly use AI-generated art assets, including project logo. Projects with this tag are automatically excluded from all Pack Finder results.
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
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Spectrum: Optical
Catch the light. Make it work.
Spectrum is an engineering and optical mod for Minecraft (Fabric, 1.21.1) that introduces a system for generating, directing, focusing, and splitting beams of light. Build complex optical networks using mirrors, lenses, and filters in 3D space to interact with the world and automate your setups.
💡 Core Mechanics
1. Generation & Detection
- Beam Emitter: When powered by Redstone, it emits a focused white beam of light with a base intensity of
15. - Beam Receiver: Detects incoming light beams hitting its front face and outputs a Redstone signal. Perfect for wireless Redstone transmission or laser tripwires.
2. Direction & Reflection
- Optical Mirrors (Horizontal & Vertical): Redirect beams.
- Standard Mirror: Reflects light horizontally. Can be rotated in 8 directions (45-degree steps) by right-clicking.
- Double-sided Mirror: Reflects incoming beams from both its front and back sides.
- Vertical Mirror / Double-sided Vertical Mirror: Allows you to bounce beams vertically (up or down).
3. Focus & Splitting (Lenses)
- Converging Lens (Собирательная линза):
- Receives beams from its Left and Right sides and combines them into a single, stronger beam emitted from the front.
- Merging beams sums their intensities (making the laser visually thicker) and blends their colors.
- Supports up to 5 maximum merges for gameplay balance.
- Diverging Lens (Рассеивающая линза):
- Receives a single beam from the back and splits it into two beams (emitted from Left and Right sides) with half of the input intensity.
🌈 Spectral Colors & Filtering
Pass a beam through any of the 16 vanilla stained glass blocks or panes to filter its wavelength and change its color. Filtering absorbs light, reducing the beam's intensity by 1 per glass block.
Each color triggers unique physical effects along the beam path or where it hits:
- 🔴 Red (Heat): Melts ice and snow along its path, sets target blocks on fire, and burns entities.
- 🟢 Green (Life): Turns dirt blocks into grass blocks along its path and acts as Bone Meal on crops/saplings at its endpoint. Heals living entities.
- 🔵 Blue (Cold): Freezes water into ice, solidifies lava into obsidian or cobblestone, and extinguishes fire. Inflicts Slowness on entities.
- ⚪ White (Laser, Intensity \(\ge 20\)): High-power concentrated beam. Breaks blocks at its endpoint (up to hardness 10) and deals heavy magic damage to entities.
- 🟡 Yellow (Red + Green): Accelerates minecarts.
- 🟣 Purple (Red + Blue): Teleports items and entities forward along the direction of the beam.
- 🔵 Cyan (Green + Blue): Grants Levitation to entities.
⚙️ Requirements & Dependencies
To play Spectrum, make sure you have the following installed:
- Fabric Loader (1.21.1)
- Fabric API
- Fabric Language Kotlin
Spectrum: Optical
Catch the light. Make it work.
Spectrum is an engineering and optical mod for Minecraft (Fabric, 1.21.1) that introduces a system for generating, directing, focusing, and splitting beams of light. Build complex optical networks using mirrors, lenses, and filters in 3D space to interact with the world and automate your setups.
💡 Core Mechanics
1. Generation & Detection
- Beam Emitter: When powered by Redstone, it emits a focused white beam of light with a base intensity of
15. - Beam Receiver: Detects incoming light beams hitting its front face and outputs a Redstone signal. Perfect for wireless Redstone transmission or laser tripwires.
2. Direction & Reflection
- Optical Mirrors (Horizontal & Vertical): Redirect beams.
- Standard Mirror: Reflects light horizontally. Can be rotated in 8 directions (45-degree steps) by right-clicking.
- Double-sided Mirror: Reflects incoming beams from both its front and back sides.
- Vertical Mirror / Double-sided Vertical Mirror: Allows you to bounce beams vertically (up or down).
3. Focus & Splitting (Lenses)
- Converging Lens (Собирательная линза):
- Receives beams from its Left and Right sides and combines them into a single, stronger beam emitted from the front.
- Merging beams sums their intensities (making the laser visually thicker) and blends their colors.
- Supports up to 5 maximum merges for gameplay balance.
- Diverging Lens (Рассеивающая линза):
- Receives a single beam from the back and splits it into two beams (emitted from Left and Right sides) with half of the input intensity.
🌈 Spectral Colors & Filtering
Pass a beam through any of the 16 vanilla stained glass blocks or panes to filter its wavelength and change its color. Filtering absorbs light, reducing the beam's intensity by 1 per glass block.
Each color triggers unique physical effects along the beam path or where it hits:
- 🔴 Red (Heat): Melts ice and snow along its path, sets target blocks on fire, and burns entities.
- 🟢 Green (Life): Turns dirt blocks into grass blocks along its path and acts as Bone Meal on crops/saplings at its endpoint. Heals living entities.
- 🔵 Blue (Cold): Freezes water into ice, solidifies lava into obsidian or cobblestone, and extinguishes fire. Inflicts Slowness on entities.
- ⚪ White (Laser, Intensity $\ge 20$): High-power concentrated beam. Breaks blocks at its endpoint (up to hardness 10) and deals heavy magic damage to entities.
- 🟡 Yellow (Red + Green): Accelerates minecarts.
- 🟣 Purple (Red + Blue): Teleports items and entities forward along the direction of the beam.
- 🔵 Cyan (Green + Blue): Grants Levitation to entities.
⚙️ Requirements & Dependencies
To play Spectrum, make sure you have the following installed:
- Fabric Loader (1.21.1)
- Fabric API
- Fabric Language Kotlin
Screenshots
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Beam Receiver Recipe Crafting recipe for the Beam Receiver, which detects light beams and outputs redstone power. -
Beam Emitter Recipe Crafting recipe for the Beam Emitter block, which serves as the source of all light beams.
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Laser reflection and water freezing A white beam passes through light blue glass, reflects off a mirror, and solidifies water into ice. -
Beam Emitter Recipe Crafting recipe for the Beam Emitter block, which serves as the source of all light beams. -
Beam Receiver Recipe Crafting recipe for the Beam Receiver, which detects light beams and outputs redstone power.
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