Compatibility
Minecraft: Java Edition
Tags
Creators
Details

Spectrum Outline EntzuMC
Upgrade your block highlights with vibrant moving colors and a sleek modern style.
โจ Features
- ๐ Animated spectrum outlines
- ๐ Flowing color loop around edges
- ๐จ Custom color mode
- ๐ Adjustable thickness
- โก Lightweight & optimized
- ๐งฉ Vanilla shader based
Perfect for PvP, building and cinematic gameplay.
๐ฅ Compatibility
โ Minecraft 1.21.x
โ Vanilla
โ Iris
โ Sodium
โ OptiFine
๐ฆ Installation
- Download the pack
- Move it to
.minecraft/resourcepacks - Activate it in game
โค๏ธ Credits
Created by EntzuMC
โ๏ธ Configuration Guide
Spectrum Outline EntzuMC
All visual effects can be customized directly inside the shader files.
No extra mods or menus required โ just edit a few lines.
๐ Where to edit
Open the pack and go to:
assets/minecraft/shaders/core/
You will find:
rendertype_lines.vshrendertype_lines.fsh
At the top of both files you will see the configuration panel.
๐ฎ Changing the Mode
Find this line in both files:
#define MODE RAINBOW_LOOP
Replace RAINBOW_LOOP with one of these:
VANILLAโ Default Minecraft outlineRAINBOW_FADEโ Smooth animated color shiftRAINBOW_LOOPโ Colors travel around the edgesCUSTOMโ Uses your selected color

โ ๏ธ The mode must match in both files.
๐ Changing the Thickness
In rendertype_lines.vsh:
#define THICKNESS 2.5
Examples:
1.0โ vanilla2.0โ slightly thicker3.0โ bold4.0+โ very thick
๐จ Custom Color Mode
If you use:
#define MODE CUSTOM
Change this in rendertype_lines.fsh:
#define CUSTOM_COLOR vec4(0.2, 0.8, 1.0, 1.0)
Format: vec4(R, G, B, A)
Values go from 0.0 to 1.0.
Examples:
White: vec4(1.0, 1.0, 1.0, 1.0)
Red: vec4(1.0, 0.0, 0.0, 1.0)
Purple: vec4(0.7, 0.2, 1.0, 1.0)
๐ Changing Rainbow Speed
#define SPEED 2000.0
Higher = faster
Lower = slower
๐ Direction
#define DIRECTION 1.0
1.0โ normal-1.0โ reverse
๐ Smooth Transitions
#define SMOOTH true
trueโ soft gradientfalseโ hard color steps
๐ก Tips
โ Restart Minecraft after editing
โ Use CUSTOM mode for quick testing
โ If nothing changes โ make sure both files match
Enjoy your personalized outlines ๐ฅ


