Convert HIPNC to HIP

A Houdini Apprentice project needs this conversion when it must be opened, edited, or rendered as a commercial Houdini scene. The conversion also matters when delivering a standard .hip file instead of a non-commercial .hipnc project.

What the HIPNC format is

.hipnc is SideFX Houdini's non-commercial scene format, created by Houdini Apprentice. It can contain node networks, parameters, animation, materials, cameras, lighting, and references to external scene assets.

Apprentice files retain non-commercial restrictions. Depending on the content and Houdini version, those restrictions can affect rendering, resolution, watermarks, file interchange, and commercial use. The file extension also records the licensing category; renaming it does not remove those restrictions.

What the HIP format is

.hip is Houdini's standard scene format for commercial Houdini licenses. Commercial Houdini installations use it for procedural models, simulations, animation, rendering, and production scenes.

A commercial .hip file is not a self-contained project archive. Textures, geometry, Alembic files, .bgeo caches, simulation data, scripts, plug-ins, and referenced Houdini Digital Assets may remain outside the scene file.

How to convert the file

Use a compatible commercial Houdini installation, such as Houdini Core or Houdini FX, with a license that can read Apprentice scenes and save commercial files. Houdini Apprentice cannot create a genuinely commercial file by changing the filename.

1. Back up the original .hipnc file and install a Houdini version compatible with the scene. Opening it in the same or a newer supported version reduces version-conversion problems.
2. Start Houdini under the eligible commercial license and choose File → Open. Select the .hipnc file.
3. Check for missing nodes, plug-ins, assets, textures, caches, and external paths. Use File → Set Project when the scene depends on a project directory or relative paths.
4. Choose File → Save As and save a separate copy with the .hip extension. Do not overwrite the original non-commercial file.
5. Reopen the saved .hip file in the destination commercial installation. Cook important networks and test renders, textures, caches, simulations, and referenced assets before removing the source or transferring the project.

If Houdini refuses to save the .hip file or continues to identify the scene as non-commercial, the active license does not permit this conversion. Houdini Indie is a separate licensing category and normally uses .hiplc files, not commercial .hip files.

For batch processing, a licensed Houdini session can use hython and the hou.hipFile.load() and hou.hipFile.save() functions. Automation does not bypass licensing; the process still requires a license that can write commercial scenes.

Compatibility and quality limits

There is no reputable online converter that can reliably convert proprietary Houdini scene files while preserving Houdini nodes, licensing metadata, version behavior, and external dependencies. Keep the conversion local, particularly when the scene contains confidential production data.

Changing scene.hipnc to scene.hip in a file manager changes only the filename. Houdini can still detect the original format or licensing information, and a commercial installation may reject the renamed file.

Saving under a commercial license does not grant commercial rights to third-party models, textures, plug-ins, Houdini Digital Assets, scripts, or other source material. Replace or rebuild restricted content when its license does not permit commercial use.

Houdini version changes can alter parameters, node behavior, render settings, or simulation results. Preserve the original file, review any version-conversion warnings, and recook or rerender critical output after conversion.