RESURF - solution to nurb surface fitting Computer Aided Design (CAD)      
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We focus our core business on the research and software development for design and modeling of free-form surfaces. Based on our mathematics background, to take the advantage of our competitions NURB surface fitting technologies, we concentrate on the market places which need the application of NURBS modeling technologies, such as Reverse Engineering, Metal forming design, 3D Modeling for Entertainment and so on. Our available products are Rhinoceros® Plug-ins and stand-alone applications:

RhinoResurf for Rhino, a reverse engineering tool that gives Rhino the ability to reconstruct NURBS surface(s) from mesh or point cloud with specified precision. RhinoResurf also provide features for free-form surface modeling from polygon lines(mesh).

Try RhinoResurf (32-bit and 64-bit).

Buy RhinoResurf(32-bit) Buy RhinoResurf(64-bit) Upgrade RhinoResurf

View videos...... Download videos(67Mb,including 8 videos) Online_Help


MeshFlatten for Rhino, a tool for Rhino to unfold 3D mesh or surface to be 2D mesh.

Try MeshFlatten for Rhino 4(32-bit), Try MeshFlatten for Rhino 5.0(64-bit)

Buy it!

Mesh_to_single_NURBS is a stand-alone application that converts an open mesh to a single NURBS surface. It can import .stl mesh file and export nurbs surface to .igs file.

Try it free!, Buy it!

Point_cloud_to_NURBS is a stand-alone application that fits a point cloud to NURBS surface. It can import point cloud file and export NURBS surface to .igs file.

Try it free!, Buy it!

OBJ_mesh_to_solid is a stand-alone application that helps user blend NURBS surfaces from OBJ polygon mesh. It can import .obj file and export NURBS surface to .igs file. When you have any polygon mesh created from CG software ( e.g Maya) and would like to blend high quality NURBS surfaces, this small software may help you. Different from Mesh_to_single_NURBS , the NURBS surfaces here do not fit to the OBJ mesh. The algorithm used in this software is based on the paper named Constructing_C1_Surfaces_of_Arbitrary_Topology_using_Biquadratic_and_Cicubic_ Splines written by Professor Jorg Peter.

Try it free!, Buy it!

Automatic_surface_from_mesh is a stand-alone application that includes the following features: 1. Automatic surface generation from closed mesh; 2. fit an open mesh to a single NURBS surface; 3. fit a point cloud to NURBS surface; 4. blend NURBS surfaces from OBJ polygon mesh. It can import point cloud/mesh file and export NURBS surface to .igs file.

Try it free!, Buy it!

MeshFlatten(stand-alone) is a stand-alone application that unfolds 3D mesh to 2D mesh. It can import .stl mesh file, export 2d mesh to .stl file and export 2D boundary line to .igs file.

Try it free!, Buy it!

Resurflib (both for windows 32-bit and 64-bit) is a toolkit for NURBS surface fitting from point cloud and mesh.

Contact us [ ] to try this tool to enhance your development.

We also support CAD/CAE software development with our NURBS surface fitting tools.



Look what Rhinoceros users say about RhinoResurf plug-in. Have your own opinion? Don't hesitate to share it with us by sending an e-mail note to

"Thanks very much for Rhino Resurf. This software is fantastic and we are very pleased with its performance."
Tom Werner , Business Development Manager - Terrestrial Laser Scanning(VEKTA)

"Fantastic! This is a really really great product- thanks so much for your efforts to develop it! For me the single surface over mesh works great to create core side offsets when making wall thickness parts that need to be nurbs. I use the rhino mesh offset to offset the entire model at one time, then use resurf to create a nurbs surface that I can booleen from the original model."

"Thank you very much! Your advice has payed off and a (very) acceptable surface has been created! This was very helpful. "
Gijs Rikken, MVRDV
"You and certainly resurf !! Work very well, as you can see i open perfectly your igs and I have a body with volume and mass....."
Cordialement. Fran?ois Maniquet
"We were very impressed with your product - thank you! "
Chris Hoyle, Technical Director rFactor Pro
"Thank you. The new plug-in works fabulous ! I appreciate your help!"
Erik Lander







( New RhinoResurf for Rhino 6 ) Download RhinoResurf for Rhino6 for evaluation.

new command_RsImportLas in RhinoResurf v2.1.

RhinoResurf v2.007 for Rhino 5.0 64-bit. Download from here:

Symmetric surface from point cloud, view the description from here:

RhinoResurf 2 (Beta) for Rhino 5 64-bit: download it from here to evaluate. View the video for new features: creating free-form surfaces by editting global mesh.

Tutorial: morph the geometry from original mesh data to compensated mesh data by using command _RsSurfacemap

New feature preview: a new command named RsSurfacemap will be released in RhinoResurf, view this video for how to use this new tool.

*Toolkit: Resurflib for Windows 32-bit and 64-bit version was released.

*new features added in RhinoResurf ) RhinoResurf v1.8 was released. New features:

1. select sub-points by 'Box' for surface fitting.

2. the fitted surface is able to be extended by specified values in U-direction and V-direction.

3. Exact G1 continuity on star-point position.

*( new feature added in RhinoResurf ) RhinoResurf v1.7 was released. New feature:

*RsMesh2SurfsByPolygon: create surfaces from mesh based on polygon mesh;

*RhinoResurf v1.6 was released. New features:

RsMesh2StarFace: create star face from mesh;

RsFillMeshholes: filll mesh holes automatically.

*MeshFlatten for Rhino V1.1 released. Download MeshFlatten for Rhino v1.1......

*Recently, RhinoPhoto has posted training videos for how to modelize a boat hull by using RhinoPhoto and RhinoResurf. View training videos......

*Command _RsMesh2Surfs (Surfaces from mesh by curve network) supports T-point vertex in curve network. View more details.......

*Added two new surface modeling commands: RsFace FromLines and RsFaceFromPolygon......

*Rhino Resurf2(WIP) updated RsAutoNurbs has been improved......

*Rhino Resurf2(WIP) updated read more (video)......

*Case study : digitalizing ancient buidlings.











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