[Extension](https://www.opendesign.com/sig)# BimNv SDK

Read, view and create Navisworks® files — no dependencies

[icons_cloud.mp4](https://static.opendesignalliance.cn/themes/oda/img/products/bim-nv/icons_cloud.mp4)

Desktop & Web

NWD NWC NWF

[Free 60-Day Trial](https://www.opendesign.com/free-trial)

## Features

### Access

Full hierarchy with geometries, render and BIM data of NWD/NWC/NWF files

### View

- Standard viewing controls: Pan, zoom, rotate, move, and more
- Progressive interactive viewing based on the spatial hierarchy

### Create

Create new NWD/NWC files from scratch

### Modification

- Add saved viewpoints, selection sets, and light items to the model
- Add property/hyperlinks or appearance overrides
- Change the clip plane set

### Writing

- Valid writing to supported versions (2016 and 2026) into NWD/NWC/NWF formats
- Geometry compression for vertices during writing

## ODA Platform for BimNv

Conversion

Hide details ###### Import

- NWD
- NWC
- NWF

   BimNv

   ###### Export

- DAE (collada)
- Raster Formats
- XML/CSV of BIM data (clash, timeliner, viewpoints, search sets) in Navisworks style
- NWD & Publish NWD

Integration

All ODA Products

Supported versions of NWD, NWC, NWF

- Reading
    - **Full:** 2016 - 2026
    - **Partial:** 2009 - 2015
    - **Limited:** 2006 - 2007 (JetStream v5)
- Writing
    - 2016 and 2026

  ## See it in action

   Viewing of nwd with huge scene, appearance overriding

[Product demo video](https://www.opendesign.com/files/2025-11/bimnv-app.mp4)

[Try For Free](https://www.opendesign.com/free-trial)

## Roadmap

- ![](https://static.opendesignalliance.cn/themes/oda/img/products/bim-nv/sphere.svg) 2023
    - Full support for reading/writing Navisworks elements: clashes, timeliner, animations, materials
    - Up to **75%** faster spatial hierarchy generation
    - Integration with ODA Visualize: export of materials, lights, cameras, saved views
    - Enhanced rendering: normal mapping, GPU clip planes, reflection textures
    - Partial viewing, CPU/GPU culling, and smart erasing in BimNvApp
- ![](https://static.opendesignalliance.cn/themes/oda/img/products/bim-nv/sphere.svg) 2024
    - Property tree with advanced search by category/property/value
    - Material editor with support for advanced textures
    - .nwf override support for appearance, attributes, and links
    - Color/transparency overrides for model items and selections
    - Async geometry loading with caching for faster scene setup
    - Up to **2× faster loading, 53% faster rendering, 55% fewer duplicate materials**
    - Optimized export: SavedItems, Collada improvements
    - GPU instancing & block reuse for memory savings and FPS boost
- ![](https://static.opendesignalliance.cn/themes/oda/img/products/bim-nv/sphere.svg) 2025Already implemented (26.1–26.6)

    - GPU instancing & block inserts for faster Gi/Gs rendering
    - SSE2–AVX2 / NEON-based CPU occlusion culling for partial viewing
    - Direct .nwf xref reading from stream buffers

    Planned for 2025 (v26.7–26.12)

    - Procedural & custom textures from .adsklib
    - Further async loading improvements
    - Optimized point cloud rendering
    - Background-threaded CPU occlusion culling
    - Ray tracing in BimNv viewer
    - Export to **IFC** and **PDF**
    - Compressed geometry writing (colors, textures, normals)
    - Save to .nwc format

  ## More ODA toolkits for BimNv

| Feature | BimNv SDK | Visualize SDK |
| --- | --- | --- |
| Platforms | | |
| Focus on | Support for NWD/NWC/NWF including traversing hierarchy, getting render/BIM data, visualization, creating, and saving | High-performance graphics engine. Visualize multiple formats in one project using a simplified API |
| Intermediate Formats | — | VSFX |
| Editing capabilities | Appending saved item data (viewpoints, lights, selection sets), appending override properties or appearance | VSFX editing |
| Visualize capabilities | Integrated visualization with interactive partial rendering (frustum culling). Accelerated rendering via GPU instancing and block inserts. <br> Optimized partial viewing with CPU occlusion culling (SSE2-AVX2 / NEON) | Advanced high-performance rendering |
| BIM data obtaining | Direct access to properties, hierarchy, clash, timeliner, animation, and selection data, with export to CSV/XML | — |

## Take the next step

**For questions about the ODA BimNv SDK,  
including how to join the product launch**

[Try for Free](https://www.opendesign.com/free-trial)