HoloMap is a NeoForge 1.21.1 mod that adds a holographic projector block capable of scanning nearby terrain, structures, entities, and moving contraptions, then displaying them as a configurable floating hologram.

It provides a compact preview of nearby builds, or a way to visualize moving Create Aeronautics contraptions.

Features

• Adds the HoloMap hologram projector block
• Scans nearby terrain, blocks, structures, and entities
• Projects the scan as a floating hologram
• Adjustable scan area and hologram display size
• Block-space and world-space offset controls
• Texture rendering support
• Redstone powered/unpowered display modes
• Free Mode support for moving contraptions
• Holo Centering Rod for changing the hologram center
• Entity-centered holograms, including player-following support
• Searchable entity configuration screen

HoloMap Projector

The HoloMap block scans an area around itself, or around a custom center point, and renders that area as a holographic projection. The hologram can be resized, moved, offset, and configured from the in-game screen.

This makes it useful for map rooms, control rooms, airship bridges, base displays, and sci-fi builds.

Holo Centering Rod

The Holo Centering Rod is a tool used to move the center of the hologram scan.

How it works:

• Right-click a block to save that block as the center point
• Right-click a HoloMap block to apply the saved center
• Sneak-right-click a HoloMap block to clear the custom center
• Right-click an entity to save that entity as the center

This allows the hologram to be centered on a specific block, contraption, player, or other entity.

Moving Contraption Support

HoloMap includes Free Mode, which is intended for moving contraptions and sublevel-style creations, such as Create Aeronautics / Simulated / Sable setups.

This allows the hologram to display structures that may not exist on the normal Minecraft block grid.

Redstone Control

The HoloMap block can be configured to render only while powered or only while unpowered.

This makes it useful for:

• Control panels
• Hidden displays
• Toggleable map rooms
• Redstone-operated hologram projectors
• Automated builds

Requirements

• Minecraft 1.21.1
• NeoForge

Compatibility Notes

HoloMap is designed with moving contraptions in mind, but advanced contraption support may depend on the exact mods and versions being used.

Status

HoloMap is still in active development. Some advanced rendering behavior may change as the mod improves.