Portals & Dimensions

Create fully customizable portals linked to procedurally generated dimensions — all from an intuitive in-game GUI.

Features

Custom Portals

Build portal frames from any solid block (obsidian, diamond, gold, etc.)
Adjustable portal size (width x height)
Configurable 24-bit portal color with live preview
Horizontal and vertical portal orientations
Color picker with palette, recent colors, and RGB input

Custom Dimensions

7 terrain types: Void, Flat, Normal, Amplified, Nether, End, and Math formula
Math terrain: Define terrain with sin, cos, noise, perlin, fbm, and custom expressions - supports 2D heightmap and full 3D density
Coordinate scale slider for terrain stretch/compression
Smooth terrain toggle for natural-looking slopes
Configurable sea level, surface/underground/fluid blocks
Cave generation with adjustable density
Ore generation (coal, iron, copper, gold, redstone, diamond, lapis)
Structure generation (villages, temples, etc.) - toggleable
Mixed biome support with Perlin-noise-based transitions

Atmosphere

Sky, fog, ambient light, water, and cloud color customization
Fog density control
Skylight, ceiling, and ultrawarm dimension properties
Light level override (0-15)
Configurable ambient particles (portal, end rod, soul fire, lava, etc.)

Game Rules (per-dimension)

Day/night cycle & fixed time
Mob spawning, natural spawning, PvP, fall damage, fire spread
Keep inventory, bed works, respawn allowed
Weather lock (clear, rain, thunder)
Gravity multiplier

Commands

/pdims list — List all configured custom dimensions
/pdims tp <dimension> — Teleport to a custom dimension
/pdims info <dimension> — View dimension configuration details
/pdims reload — Reload dimension configs from file

Screenshots

Portal GUI Dimension Formula Atmosphere Colors Game Rules In-Game Portal Manage Tab

Math Formula Terrain

Category	Example	Description
2D Basic	`sin(x/10)cos(z/10)20 + 50`	Rolling hills
2D Intermediate	`noise(x/20,z/20)*30 + 60`	Smooth noise terrain
2D Advanced	`fbm(x/40,z/40,4,2,0.5)*40 + 50`	Fractal mountains
3D	`fbm(x/30,y/15,z/30,3,2,0.5) > 0.5`	Floating islands / caves
Beginner	`abs(x/10) + abs(z/10) * 2 + 40`	Valley

Available functions: sin, cos, tan, abs, sqrt, pow, min, max, mod, floor, ceil, round, noise(x,z), perlin(x,y,z), fbm(x,y,z,octaves,lacunarity,gain), if(cond, a, b), random(x,z), dist(x,z), gauss(x,z), mix(a,b,t), remap(v, inLo, inHi, outLo, outHi)

Requirements

Minecraft 26.1.x
Fabric Loader 0.18.5+
Fabric API 0.145.3+

Getting Started

Craft or get the Portals & Dimensions lighter (creative tab or /give)
Right-click to open the configuration GUI
Portals tab: Set frame block, portal color, and size
Dimension tab: Configure terrain type, formula, biome, colors, and game rules
Manage tab: Save, clone, export, or import dimension configs
Light a portal frame with the configured lighter to create a linked portal