New modeling technique: Polygonal or Box modeling is a method where the designer pulls on, extrudes, and scales basic shapes to quickly rough out a desired shape. As the model becomes more refined, sections of the shape can be subdivided to add more detail and control. T-Spines makes this technique available for the first time in a NURBS compatible method.
The power and ease of subdivision modeling with the precision of NURBS
T-Splines introduces new subdivision surface type workflows into Rhino's precision environment. These workflows, enjoyed for their rapid concept generation by animators, bring the same speed benefit to industrial design. And, for the first time, T-Splines makes them available in a NURBS-compatible, production quality way.
Box modeling tools
Box modeling or polygonal modeling is a method where the designer pushes or pulls on and extrudes basic shapes to quickly rough out a desired form. T-Spines makes this technique available for the first time in a NURBS compatible method. Box modeling can begin from a single primitive, like a cube, or by deriving a T-Spline model from polylines.
- Extrude shapes: Modify your model by adding geometry and dragging faces, edges, or vertices.
- Local detail: Create local detail in a surface with no need to extend the detail across the whole surface.
- Control points: Add control points anywhere on the surface.
- Manipulator: fully control the extent and direction of extrusions of individual or groups of points and edges. Macros allow quick and easy selection of logical groups of surface points.
Case studies & tutorials
T-Splines introduces exciting new polygonal modeling workflows into Rhino. Explore the detailed tutorials or introductory videos below to learn more.
||Box modeling tools help jewelry designers create unique and beautiful ring designs.
||Read a tutorial describing Paraglobal's discovery of T-Splines to make free-form children's toys.
Powerful surfacing tools: Using simple T-Splines commands, it's easy to generate editable, non-rectangular surfaces from curves—something that's not possible to do using NURBS.
Complete shaping freedom
- Create surfaces from curve networks: With T-Splines, you can easily make any organic shape, even with holes and non-rectangular boundaries, as a single surface from a network of input curves—without the need for additional fillets, blends, or trims. This single T-Splines surface is always gap-free regardless of complexity, smooth and curvature continuous where needed.
- Loft surfaces from any input curves: When you loft a T-Spline surface, your input curves can each be optimal for the curvature they are describing—you don't need to worry about how their control point count will interface with the control points of the other curves in the loft. T-Splines will isolate the detail and generate a surface with control points just where you need them.
- Create non-rectangular surfaces: Using simple T-Splines commands, it's easy to generate non-rectangular surfaces if needed—something that's not possible to do using NURBS.
- Build models from T-Splines primitives: Start with a sphere, cube, cylinder or torus as the basis for your model.
Case studies & tutorials
Lay out the curves to define your entire model. Select the curves all at once, walk through the three-step wizard, and create a smooth model with no blends, trims, or fillets.
||By using T-Splines for Rhino, Syse was able to model this mouse as a single smooth surface, directly from input curves, saving considerable time in the process.
||Read an advanced tutorial for creating surfaces from curves. This tutorial was created by Nicolas Denhez from Dell.
Many more beginner and advanced tutorials are available here.
High level of shape control: Keeping the number of control points to a minimum (to facilitate a smooth surface) is the first rule of modeling. T-Splines makes this easy to do, by letting you insert single control points instead of a whole row, as required in NURBS. Editing these points, deleting sections of points, and adding local creases are possible, too.
Detail and control only where you need it
- Create single surfaces with varying level of detail: Keeping the number of control points to a minimum (to keep a smooth surface) is the first rule of modeling. T-Splines makes this easy to do, by letting you insert single control points instead of a whole row, as required in NURBS.
- Remove unnecessary control points: Simplify and improve editability of your models by removing control points where they are not required. Reduce the number of control points to control your shapes by up to 70%.
- Create local creases: Creating creases that only extend partway across the surface in NURBS is a complex process that involves snapping to curves, and can only be done on the edge of a surface. Local creasing is a trivial operation in T-Splines, and the entire surface remains easily editable.
Interoperability: Import polygonal models or .obj files and convert them to T-Splines surfaces. T-Splines surfaces are 100 percent directionally compatible with NURBS and at any point in the design, you can convert your T-Splines model to a NURBS model for downstream analysis or manufacturing applications.
Analysis and production-ready surface models
- Merge NURBS patches: Import and merge NURBS patch models into a single T-Splines surface. Automatically repair gaps and create smooth transitions. Reduce the number of control points required to maintain your model by up to 70%.
- Import polygonal models: Import polygonal models from subdivision modelers and convert them to T-Splines surfaces.
- Export to NURBS: T-Splines surfaces are 100% bi-directionally compatible with NURBS and at any point in the design, you can convert your T-Splines model to a NURBS model for downstream analysis or manufacturing applications.
- Fully integrated in Rhino: All capabilities available natively within Rhino. Leverage all existing Rhino capabilities. Fully integrated help and tutorial functions and hot keys.
- Fully integrated in Maya: All capabilities available natively within Maya.
Case studies & tutorials
Start with an .obj mesh file from Rhino or a third-party polygonal modeler. Use T-Splines as a push-button solution to smooth the model and use it as a NURBS.
||Claas Kuhnen from Kendall College of Art and Design at Ferris State University demonstrates several different workflows for converting mesh models to NURBS with T-Splines.
Register & login for free downloads
New to designing in 3D?
It can be daunting to learn the intricacies of NURBS modeling. T-Splines provides an alternative: pushing and pulling on a surface to shape it and add form. Learn more about the basics of box modeling.
Already a master in 3D?
T-Splines is the Rhino plugin that will speed up your time for free-form, organic modeling. Learn more about how T-Splines can help you in your industry .