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  Home > Software > The Foundry > MODO > MODO Plug-Ins >

  Power SubD-NURBS for MODO Plug-in
Power SubD-NURBS for MODO Plug-in


The Foundry Power SubD-NURBS for MODO Plug-in

Plug-in converts Subdivision Surfaces to NURBS inside MODO and exports to these common CAD formats:

  • IGES – .igs extension (Initial Graphics Exchange Specification)
  • Rhino – .3dm extension (McNeel's openNURBS format)
  • SAT – .sat extension (ACIS SAT file format)
  • STEP – .stp extension (ISO 10303, AP 203 format)
List Price: $495.00

Availability: Electronic Delivery within 1 business day

Product Code:

Mac OS X

Specs and System Requirements

Prototype virtually any organic surface.

Power SubD-NURBS lets you export Subdivision Surface meshes from MODO into NURBS-based CAD formats that load into a wide range of CAD systems. This tool facilitates use of MODO as a concept modeler at the initial stage of the design process -- where MODO's ability to quickly create organic shapes is especially useful. With this tool, you can freeform model a variety of design alternatives in MODO and then transfer them to your CAD system for further refinement and engineering. The combination of MODO and the Power SubD-NURBS plug-in offers new conceptual modeling opportunities for designers in the automotive, aerospace, architectural, and consumer product goods industries. Power SubD-NURBS was developed by IntegrityWare, located in San Diego, CA. It bridges the gap between Subdivision surface modeling and NURBS modeling, unifying free-form conceptual design with NURBS-based operations like filleting and blending. The plug-in is available for MODO 601 (32 and 64-bit) and MODO 701 (64-bit) for use on Windows and for Mac OS X.

Power SubD-NURBS Settings

Power SubD-NURBS provides the ability to convert your Sub-D meshes into high quality NURBS surfaces with the following controls and workflow:

Polygonal vs. SubD Faces — The Plug-in can perform two types of exports: either "one-to-one" where each face of the mesh becomes a single planar face in the CAD format, or "smooth" where subdivided faces of the mesh will be combined to define curved NURBS surfaces. Typically the one-to-one export will have many small, sharp edges while the smooth export will generate large, primarily G2 continuous surfaces.

The export accomplishes this by treating each face of the mesh as either polygonal or as a Subdivision Surface based on how the mesh is currently displayed in MODO. It uses the displayed state as a tag for how each face should be processed.

Export a Mesh — The workflow is simple. First select the desired mesh in the scene. Then when you Export As or Save As in MODO, several new CAD formats are presented in a drop-down menu.

Export File Formats

  • IGES — .igs extension (Initial Graphics Exchange Specification)
  • Rhino — .3dm extension (McNeel's openNURBS format)
  • SAT — .sat extension (ACIS SAT file format)
  • STEP — .stp extension (ISO 10303, AP 203 format)

Please note that RHINO export is for Windows only.

Subdivision Quality — You have control over the density of the resulting NURBS surfaces when using the Plug-in. The "Medium" setting uses the level that the Plug-in determines to be optimal, but if the resulting quality is too low then using "Fine" or "Very Fine" can improve the results. Alternatively, if only a rough result is needed then "Coarse" can be selected for a faster export.

Edge Detection Angle — The Plug-in uses this angle when determining the surface breakdown of the CAD data. The default value, 145.0 degrees, is usually optimal for organic meshes. In cases where there are weighted edges or fairly sharp angles, the value can be lowered.

Enable Crease Edges — Checking this setting will prevent the Plug-in from trying to smoothly blend the continuity of surfaces that meet at sharp angles. The images below are the export results without and with this setting enabled.

Triangulate Invalid Quads — This setting can improve the results when the mesh contains quads with very extreme angles between edges.

MODO materials — The Plug-in uses MODO materials as part of the criteria for determining the final surface breakdown in order to guarantee that there will be an edge along the boundary between different materials. This feature can be used to force specific edges to be generated for your desired CAD format where the Plug-in would have otherwise determined edges to be unnecessary.

MODO 801 Full Feature Set


MODO has the fastest, most advanced polygonal and subdivision surface 3D modeler anywhere. MODO's flexible modeling tools are ideal for precision modeling of mechanical and architectural designs, and for freeform organic modeling of virtually any shape. Integrated multi-res sculpting tools work alongside traditional modeling tools to offer a superior modeling experience as well as providing unique workflows for ZBrush users.


In MODO, sculpting and traditional modeling are brought together in one application. When you need sculpting tools, they are always right at hand. Together, the combination of modeling and sculpting tools in a single application delivers a uniquely powerful 3D modeling experience.


Animating in MODO comes naturally as the modeling and animation tools work hand in hand. The same tools used in modeling are directly leveraged in the animation system. As you create in MODO, time is just another dimension for you to draw upon. Use MODO to create precise mechanical animations or fully articulated skinned characters.


MODO is equipped with one of the world's great renderers for creating gorgeous images and animations - and for baking out everything from HDRI files to textures for game engines. The renderer is provided as both a final render engine and as an optimized progressive refinement system that updates nearly instantly as you model, paint or change any item property within MODO. The renderer is an over-achiever that offers that rare blend of speed and quality, and includes UNLIMITED network rendering on Mac, Windows and Linux platforms.


The MODO simulation engine includes solvers for rigid and soft body dynamics as well as an integrated rules based, procedural particle system. Preparing and refining Dynamics and Particle simulations is made easy with a Preset browser to speed up layout and setup tasks, while the underlying framework relies on nodes to create more advanced setups.

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