NEXUS Model Converter

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What NEXUS Model Converter is

NEXUS Model Converter is a free toolset for preparing and viewing multiresolution 3D models. Its Nxsbuild utility converts .ply and .obj files into .nxs models, and can combine multiple model pieces in one output. The resulting structure supports view-dependent resolution. Nexus works with point clouds and meshes containing per-vertex normals, colors, and texture coordinates, and stores textures internally. Nxsedit can compress models, remove lower hierarchy levels, export to .ply, and report model information; the maker says compression can reduce model size to 10–20%. Out-of-core tools help process and display large models and textures with limited resources. Network streaming and compression support streaming use. For web visualization, the project provides a WebGL library, a Three.js loader, and a rendering engine for 3DHOP. The C++ software is free under GPL, and the JavaScript software is free under MIT. The maker notes dependencies on Qt and VCG lib. Source code and Windows executables are available from GitHub releases.

Who it suits

NEXUS is intended for developers adding multiresolution 3D visualization to C++ or JavaScript engines, and for people preparing models for web viewing. It may also suit users working with large meshes or point clouds.

What it does well

Converts .ply and .obj files to .nxs.
Can combine multiple model pieces in one file.
Supports meshes and point clouds with vertex attributes.
Includes WebGL, Three.js, and 3DHOP integrations.
Free C++ and JavaScript licensing.

What to know first

C++ software depends on Qt and VCG lib.
The RAM option is not a hard limit.
Windows executables are the listed prebuilt downloads.

Limits

Nxsbuild's RAM option defaults to 2000 MB, but the maker warns that this value is not a hard limit. The project notes dependencies on Qt and VCG lib.

Getting started

Visit the Nexus project website
Download source code or Windows executables from GitHub releases
Install the noted Qt and VCG lib dependencies for C++ use
Convert .ply or .obj models with Nxsbuild
Edit, compress, prune, or export models with Nxsedit
Integrate the WebGL library, Three.js loader, or 3DHOP renderer

Verdict

NEXUS provides conversion, editing, and web-rendering components for multiresolution 3D work, with separate licenses for its C++ and JavaScript software. Check the dependencies and the RAM-option caveat when planning a workflow.

Questions

How much does NEXUS Model Converter cost?

It is free. The C++ software uses the GPL license, and the JavaScript software uses the MIT license.

Which platforms are supported?

The listed platforms are web and Windows. Windows executables and source code are available through GitHub releases.

What input formats can Nxsbuild convert?

Nxsbuild accepts .ply and .obj files and creates multiresolution .nxs models. It can also join multiple model pieces into one file.

What model geometry does Nexus support?

It supports point clouds and meshes with per-vertex normals, colors, and texture coordinates, with textures stored internally.

Can Nexus be used in web projects?

Yes. The project provides a WebGL library, a Three.js loader, and a rendering engine for the 3DHOP framework.

Where should bugs or feature requests be reported?

The repository directs users to GitHub issues for documented, repeatable bugs and feature requests.

Facts from NEXUS Model Converter's own pages

Conversion: Nxsbuild converts .ply or .obj input models into multiresolution .nxs models. · vcg.isti.cnr.it, 8 Oct 2026
Conversion inputs: Nxsbuild generates multiresolution .nxs models from .ply or .obj files and can join multiple model pieces into one .nxs file. · vcg.isti.cnr.it, 8 Oct 2026
Downloads: Source code and Windows executables are available from the Nexus GitHub releases page. · vcg.isti.cnr.it, 8 Oct 2026
Editing: Nxsedit can compress, prune lower hierarchy levels, export to .ply, and report model information. · vcg.isti.cnr.it, 8 Oct 2026
Headquarters: Pisa, Italy · vcg.isti.cnr.it, 28 Sept 2026
Integrations: The project provides a WebGL library, a Three.js loader and a rendering engine for the 3DHOP open-source framework. · vcg.isti.cnr.it, 8 Oct 2026
Intended users: The product is for developers integrating multiresolution 3D visualization into C++ or JavaScript engines and for users preparing models for web viewing. · github.com, 8 Oct 2026
Large models: Its out-of-core tools process and visualize large models and textures with limited resources. · vcg.isti.cnr.it, 8 Oct 2026
Licensing: The maker's repository says the C++ software is free under GPL and the JavaScript software is free under MIT; it also notes dependencies on Qt and VCG lib. · github.com, 8 Oct 2026
Maker: The Visual Computing Lab is a research group at CNR-ISTI in Pisa, Italy. · vcg.isti.cnr.it, 8 Oct 2026
Model editing: Nxsedit can compress, prune or export a model to .ply; the page says compression can reduce model size to 10–20%. · vcg.isti.cnr.it, 8 Oct 2026
Multiresolution: It converts 3D models into a structure that supports view-dependent resolution. · vcg.isti.cnr.it, 8 Oct 2026
Purpose: Nexus is a C++ and JavaScript library for creating and visualizing batched multiresolution 3D models. · github.com, 8 Oct 2026
Resource limit: Nxsbuild's RAM option defaults to 2000 MB, and the maker warns it is not a hard limit. · vcg.isti.cnr.it, 8 Oct 2026
Streaming and compression: Nexus streams models over a network and uses the Corto algorithm for compression and fast decompression. · vcg.isti.cnr.it, 8 Oct 2026
Support: The repository directs users to GitHub issues for documented, repeatable bugs and feature requests. · github.com, 8 Oct 2026
Supported geometry: Nexus supports point clouds and meshes with per-vertex normals, colors and texture coordinates, and stores textures internally. · vcg.isti.cnr.it, 8 Oct 2026
Supported models: Nexus supports point clouds and meshes with per-vertex normals, colors, and texture coordinates. · vcg.isti.cnr.it, 8 Oct 2026
Web integrations: Nexus provides a WebGL library, a Three.js loader, and a rendering engine for the 3DHOP framework. · vcg.isti.cnr.it, 8 Oct 2026

Where NEXUS Model Converter stands on Freedom251

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