Reference

Nodes

Write

Set Loft Group | TDLTN

Set Group ID value on curves to loft each Group separately.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Selection (Input Bool)

• Group ID (Input Int) - Split Curves into groups, which can be lofted separately. By default loft all curves.

Set Loft Cyclic | TDLTN

Set whether the loft is cyclic along the chosen axis (U or V). Useful for connecting ends of lofts into loops or tubes.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Axis (Input Menu) - Choose the direction to apply cyclic behavior.

• Selection (Input Bool)

• Cyclic (Input Bool) - Enables or disables cyclic behavior along the selected axis for the selected loft groups.

Set Loft Spline Type | TDLTN

Set spline type of loft curves, generated in Loft Curves node.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Type (Input Menu) - The curve type to change the selected curves to.

• Selection (Input Bool)

Bezier

Set Loft Handle Type | TDLTN

Set the handle type for the control points of a loft Bézier curve.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Mode (Input Menu) - Whether to update left and right handles.

• Handle Type (Input Menu)

• Selection (Input Bool)

Set Loft Handle Position | TDLTN

Set the positions for the handles of loft Bézier curves.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Mode (Input Menu) - Whether to update left and right handles.

• Selection (Input Bool)

• Position (Input Vector)

• Offset (Input Vector)

NURBS

Set NURBS Weight | TDLTN

Sets the weight of control points in a loft NURBS curve, influencing how strongly each point pulls the curve toward itself. Higher weights make the curve pass closer to the control point.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Axis (Input Menu) - Choose direction of loft curves.

• Selection (Input Bool)

• Weight (Input Float) - Value controlling the influence of each control point. A weight of 1.0 is standard; higher values increase pull, lower values reduce it.

Set NURBS Knots | TDLTN

Assigns a custom knot vector to a NURBS curve. Knot values determine how control points influence the curve’s shape and parameterization.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Axis (Input Menu) - Choose direction of loft curves.

• Selection (Input Bool)

• Bézier (Input Bool) - Make this nurbs curve or surface act like a Bézier spline in the UV direction.

• Endpoint (Input Bool) - Make this NURBS curve or surface meet the endpoints in the UV direction.

Set NURBS Order | TDLTN

Sets the mathematical order of the NURBS curve, which defines how many control points influence each segment. Higher orders produce smoother curves but require more control points.

Sockets:

• Curve (Output Geometry)

• Curve (Input Geometry)

• Axis (Input Menu) - Choose direction of loft curves.

• Selection (Input Bool)

• Order (Input Int) - NURBS order in the UV direction. Higher values make each point influence a greater area, but have worse performance.

Read

Loft Parameter | TDLTN

Retrieve how far along each loft axis a control point is.

Sockets:

• U:

  • Factor (Output Float) - The portion of the loft’s U axis total length at the control point.

  • Length (Output Float) - Distance of control points along the loft U axis.

  • Index (Output Int) - Each control point’s index on loft U axis.

• V:

  • Factor (Output Float) - The portion of the loft’s V axis total length at the control point.

  • Length (Output Float) - Distance of control points along the loft V axis.

  • Index (Output Int) - Each control point’s index on loft V axis.

Loft UV Parameter | TDLTN

Retrieve how far along each loft surface corner a control point is.

Sockets:

• U:

  • Factor (Output Float) - The portion of the loft’s V axis total length at the loop.

  • Length (Output Float) - Distance of loops along the loft V axis.

  • Index (Output Int) - Each loop index on loft V axis.

• V:

  • Factor (Output Float) - The portion of the loft’s V axis total length at the loop.

  • Length (Output Float) - Distance of loops along the loft V axis.

  • Index (Output Int) - Each loop index on loft V axis.

Is Loft Cyclic | TDLTN

Retrieve whether each loft loop connects back to its starting profile, forming a closed surface.

Sockets:

• U:

  • Cyclic (Output Bool)

• V:

  • Cyclic (Output Bool)

Loft Length | TDLTN

Retrieve the total length and number of points along the U and V directions of the lofted surface.

Sockets:

• U:

  • Length (Output Float)

  • Point Count (Output Int)

• V:

  • Length (Output Float)

  • Point Count (Output Int)

Loft Group ID | TDLTN

Sockets:

• Group ID (Output Int)

• Map ID (Input Bool) - Sort all IDs into a list starting from 0.

Loft Normal | TDLTN

Retrieve a unit length vector indicating the direction pointing away from the geometry at each element.

Sockets:

• Normal (Output Vector)

Loft Tangent | TDLTN

Retrieve the direction of axis at each control point.

Sockets:

• U:

  • Tangent (Output Vector)

• V:

  • Tangent (Output Vector)

Loft Info | TDLTN

Sockets:

• Is Surface (Output Bool)

• Is Curve (Output Bool)

• Loft Axis (Output Int)

Loft Endpoint Selection | TDLTN

Provide a selection for an arbitrary number of endpoints in each loft group axis.

Sockets:

• U:

  • Selection (Output Bool) - The selection from the start and end of the U axis based on the input sizes.

  • Start Size (Input Int) - The amount of points to select from the start of loft group U axis.

  • End Size (Input Int) - The amount of points to select from the end of loft group U axis.

• V:

  • Selection (Output Bool) - The selection from the start and end of the V axis based on the input sizes.

  • Start Size (Input Int) - The amount of points to select from the start of loft group V axis.

  • End Size (Input Int) - The amount of points to select from the end of loft group V axis.

Loft Handle Positions | TDLTN

Retrieve the position of each V Loft Bézier control point’s handles.

Sockets:

• Left (Output Vector)

• Right (Output Vector)

• Relative (Input Bool) - Output the handle positions relative to the corresponding control point instead of in the local space of the geometry.

Operations

Mesh to Loft Curves | TDLTN

Convert mesh edges to loft curves. Store basic set of required attributes.

Sockets:

• Curves (Output Geometry)

• Geometry (Input Geometry)

• Edge Input (Input Menu)

• Edges (Input Geometry)

• Edges (Input Object)

• Edges (Input Collection)

• Curve Type (Input Menu) - The curve to change the selected curves to.

• U Cyclic (Input Bool) - Make selected group of curves a closed loop in the U direction.

• V Cyclic (Input Bool) - Make selected group of curves a closed loop in the V direction.

• Selection (Input Bool)

• Bézier:

  • Bézier Handle Type (Input Menu)

• NURBS:

  • NURBS Bézier (Input Bool) - Make this nurbs curve or surface act like a Bézier spline in the U direction.

  • NURBS Endpoint (Input Bool) - Make this NURBS curve or surface meet the endpoints in the U direction.

  • Order (Input Int)

Loft Curves | TDLTN

Sample points along the input splines and connecting them in a specified order to generate a smooth mesh surface.

Sockets:

• Geometry (Output Geometry)

• UV Map (Output Vector)

• Curves (Input Geometry)

• Grouping:

  • Group ID (Output Int)

  • Group ID (Input Int) - Split Curves into groups, which can be lofted separately. By default loft all curves.

  • Resample Group (Input Menu) - How to resample all curves in a Loft group.

• U Curves:

  • U Curves (Output Geometry)

  • Resample Type (Input Menu) - How to specify the amount of samples.

  • Method (Input Menu) - How to generate poly spline.

  • Count (Input Int)

  • Length (Input Float)

  • Even Topology (Input Float) - Distribute the control points of the resampled U curve evenly.

• V Curves:

  • V Curves (Output Geometry)

  • Resample Type (Input Menu) - How to specify the amount of samples.

  • Method (Input Menu) - How to generate poly spline.

  • Count (Input Int)

  • Length (Input Float)

  • Even Topology (Input Float) - Distribute the control points of the resampled V curve evenly.

  • Interpolation (Input Menu) - Choose how to interpolate V-axis curves Bézier handles, NURBS weight. Parameters are stored on U-axis curves and have linear interpolation by default.

Fill Loft Caps | TDLTN

Fill the First or Last profiles of a loft surface, closing the open loft surface or cross-section.

Sockets:

• Geometry (Output Geometry)

• Filled Caps (Output Bool)

• Geometry (Input Geometry)

• Filling Method (Input Menu) - Determines how the caps are constructed.

• Cuts (Input Int) - Divide the fill mesh into a specified number of segments.

• Smooth (Input Int) - How many times to blur mesh filling.

• Fill First (Input Bool) - Enable filling at the start of the loft (first U profile).

• Flip First (Input Bool) - Reverses normal direction of the first cap.

• Fill Last (Input Bool) - Enable filling at the end of the loft (last U profile).

• Flip Last (Input Bool) - Reverse normal direction of the last cap.

• Material offset (Input Int)

• Merge by Distance:

  • Merge by Distance (Input Bool)

  • Merge by Distance (Input Menu)

  • Distance (Input Float) - Threshold distance used for merging points.

Transfer Data from Loft Curves | TDLTN

Transfer attribute or field from Loft Curves to the generated loft surface on point domain.

Sockets:

• Geometry (Output Geometry)

• Geometry (Input Geometry)

• Loft Curves Input (Input Menu)

• Loft Curves (Input Geometry) - U or V Curves used in the lofting process. Must match the geometry generated by the Loft Curves node.

• Loft Curves (Input Object)

• Loft Curves (Input Collection)

• Sample Method (Input Menu)

• Loft Axis (Input Menu) - Select which axis to sample from. Some attributes can only be accessed from a specific axis.

• Attribute Type (Input Menu) - Specify whether to use the attribute by name or plug it manually.

• Data Type (Input Menu) - Define the type of attribute to sample from the Loft Curves. Must match the type of the source attribute name.

• Attribute (Input String) - Name of the attribute to transfer from the Loft Curves. This attribute must exist on the source curves.

• Store Attribute (Input String) - Name of an custom attribute to store on Surface.

• Value (Input Float)

• Value (Input Int)

• Value (Input Vector)

• Value (Input Color)

• Value (Input Bool)

• Value (Input Rotation)

• Value (Input Matrix)

• Sample Position (Input Vector)

• Blur:

  • Iterations (Input Int) - Number of blur passes to apply on the transferred attribute. Helps smooth sharp transitions between curves or groups.

  • Lock Boundaries (Input Bool) - Prevents blurring across the outermost edge curves. Useful for preserving crisp edges on open loft surfaces.

Transfer Data from Loft Surface | TDLTN

Transfer attribute or field from Loft Surface to nearest geometry.

Sockets:

• Geometry (Output Geometry)

• Geometry (Input Geometry)

• Loft Surface Input (Input Menu)

• Loft Surface (Input Geometry) - U or V Curves used in the lofting process. Must match the geometry generated by the Loft Curves node.

• Loft Surface (Input Object)

• Loft Surface (Input Collection)

• Attribute Type (Input Menu) - Specify whether to use the attribute by name or plug it manually.

• Data Type (Input Menu) - Define the type of attribute to sample from the Loft Curves. Must match the type of the source attribute name.

• Domain (Input Menu)

• Attribute (Input String) - Name of the attribute to transfer from the Loft Surface. This attribute must exist on the source surface.

• Store Attribute (Input String) - Name of an custom attribute to store on geometry.

• Value (Input Float)

• Value (Input Int)

• Value (Input Vector)

• Value (Input Color)

• Value (Input Bool)

• Value (Input Rotation)

• Value (Input Matrix)

• Group ID (Input Int) - Split the faces of the Loft Surface into groups which can be sampled individually.

• Sample Position (Input Vector)

• Sample Group ID (Input Int) - Split input Geometry into groups which can be sampled individually by its corresponding Loft Surface group.

• Blur:

  • Iterations (Input Int) - Number of blur passes to apply on the transferred attribute.

  • Lock Boundaries (Input Bool) - Prevents blurring across the boundary of surface. Useful for preventing crisp edges on open geometries.

Utilities

Loft Selection | TDLTN

Expand a per-point selection to an entire spline or loft group. If any control point in a group is selected, the entire group is selected.

Sockets:

• Group Selection (Output Bool) - True if any point in the loft group is selected.

• Spline Selection (Output Bool) - True if any point in the spline is selected.

• Group ID Total (Output Int) - Number of selected points in the loft group.

• Spline ID Total (Output Int) - Number of selected points in the spline.

• Selection (Input Bool) - Boolean per-point selection. Determines which points are initially selected before propagation to their spline or group.

Loft UV Map | TDLTN

Generate UV coordinates for lofted surfaces with customizable behavior along both U and V directions.

Sockets:

• UVMap (Output Vector) - 2D coordinates for use in shaders, texturing, or baking.

• U mapping mode (Input Menu) - Determines how UVs are calculated along the U direction (loft path or horizontal axis).

• V mapping mode (Input Menu) - Determines how UVs are calculated along the V direction (cross-section or vertical axis).

• Flip UV (Input Bool) - Swaps U and V axes in the generated UV map. Useful for correcting orientation or aligning textures.

Sample

Index of Loft Curve | TDLTN

Output the index of the Loft Curves control points for the generated loft geometry.

Sockets:

• Index (Output Int)

• Loft Curves (Input Geometry) - Curves generated by the Loft Curves node. Each vertex on the lofted surface will be matched to one of these curves to determine its source index.

• Sample Method (Input Menu)

• Axis (Input Menu)

• Axis (Input Menu)

• Sample Position (Input Vector)

Loft NURBS | TDLTN

Retrieves NURBS properties from the generated loft curves from Loft Curves node. Useful for inspecting or reusing NURBS data such as order, knot mode, and control point weights.

Sockets:

• Loft Curves (Input Geometry) - Curves generated by the Loft Curves node. Each vertex on the lofted surface will be matched to one of these curves to determine its source index.

• V:

  • Order (Output Int)

  • Knots Mode (Output Int)

  • Weight (Output Float)

Operators

Add Preset Objects

Add Loft Empty

Identifier: curves.tdlt_loft_add_empty

Add preset object “Empty Loft” from the add-on’s library.

Add Loft Bézier Tube

Identifier: curves.tdlt_loft_add_bezier_tube

Add preset object “Loft Bezier Tube” from the add-on’s library.

Add Loft Bézier Torus

Identifier: curves.tdlt_loft_add_bezier_torus

Add preset object “Loft Bezier Torus” from the add-on’s library.

Add Loft Bézier Surface

Identifier: curves.tdlt_loft_add_bezier_surface

Add preset object “Loft Bezier Surface” from the add-on’s library.

Add Loft Poly Cube

Identifier: curves.tdlt_loft_add_poly_cube

Add preset object “Loft Poly Cube” from the add-on’s library.

Add Loft Loft Cone

Identifier: curves.tdlt_loft_add_cone

Add preset object “Loft Cone” from the add-on’s library.

Add Loft Loft Cylinder

Identifier: curves.tdlt_loft_add_cylinder

Add preset object “Loft Cylinder” from the add-on’s library.

Add Loft Catmull-Rom Cylinder

Identifier: curves.tdlt_loft_add_crom_cylinder

Add preset object “Loft CRom Cylinder” from the add-on’s library.

Add Loft NURBS Cone

Identifier: curves.tdlt_loft_add_nurbs_cone

Add preset object “Loft NURBS Cone” from the add-on’s library.

Loft / Un-Loft

Loft Curves

Identifier: curves.tdlt_loft_apply

Add loft geometry modifier and attributes to the selected curves.

Un-Loft Curves

Identifier: curves.tdlt_unloft_apply

Remove loft geometry modifier and attributes from the selected curves.

UI

Call Loft Curves Menu

Identifier: curves.tdlt_menu

Call main menu.

Properties:

• Pie (Boolean) - Use Pie menu style.

Call Loft Curves Handles Transform Menu

Identifier: curves.tdlt_handles_transform_menu

Call handles transform menu.

Attributes

Store Loft Attributes

Identifier: curves.tdlt_loft_attributes_store

Set loft attributes with default values to the selected curves.

Remove Loft Attributes

Identifier: curves.tdlt_loft_attributes_remove

Remove loft attributes from the selected curves.

Curve & Handle Types

Set Loft Curve Type

Identifier: curves.tdlt_loft_curve_type_set

Set the selected curves type on the U/V axis.

Properties:

• Axis (Enumeration)

  • Both - Both U and V axes

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Curve Type (Enumeration)

  • Catmull Rom - Catmull Rom

  • Poly - Poly

  • Bézier - Bézier

  • NURBS - NURBS

The types on the V axes are stored and processed in the same manner as the regular curves, with geometry attributes. See the descriptions of each type in the Blender Manual: Spline Types

Set Loft Handle Type

Identifier: curves.tdlt_loft_handle_type_set

Set the selected Bézier curve handle types. Hold Shift to modify only left handle, Alt - right handle.

Properties:

• Axis (Enumeration)

  • Both - Both U and V axes

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Handle Mode (Enumeration)

  • Both - Left and right handles

  • Left - Only left handle

  • Right - Only right handle

• Handle Type (Enumeration)

  • Free - Free

  • Auto - Auto

  • Vector - Vector

  • Align - Aligned

The types on the V axes are stored and processed in the same manner as the regular handles, with geometry attributes. See the descriptions of each type in Blender Manual: Handle Types

Groups

Select Loft Group

Identifier: curves.tdlt_loft_group_select

Select curves in the same loft group.

Merge Loft Group

Identifier: curves.tdlt_loft_group_merge

Merge loft group of the selected curves.

Separate Loft Group

Identifier: curves.tdlt_loft_group_separate

Separate the selected curves from the loft group.

Sort Loft Curves in Group

Identifier: curves.tdlt_loft_group_sort

Reorder the selected curves in the loft group.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Offset (Integer)

• U Selection Mode (Enumeration)

  • Group - Curves group, single lofted surface

  • Segment - Individual curves

  • Point - Individual points

• Offset Mode (Enumeration)

  • Offset

  • First

  • Last

Sort by Nearest

Identifier: curves.tdlt_loft_group_sort_by_nearest

Sort curves in the loft group automatically.

Utilities

Toggle Loft Cyclic

Identifier: curves.tdlt_loft_cyclic_toggle

Close/open the selected loft curve loop on the U/V axis.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Selection Mode (Enumeration)

  • Group - Curves group, single lofted surface

  • Curve - Individual curves

• NURBS Endpoints (Boolean)

• NURBS Knots Mode (Boolean)

Switch Loft Direction

Identifier: curves.tdlt_loft_direction_switch

Reverse the direction of the selected curves on the U/V axis.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Selection Mode (Enumeration)

  • Group - Curves group, single lofted surface

  • Curve - Individual curves

• Switch (Enumeration)

  • Group

  • Segment

• Sort (Boolean)

Subdivide Loft Segments

Identifier: curves.tdlt_loft_segments_subdivide

Subdivide the selected loft V segments or U curves.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Number of Cuts (Integer)

Duplicate in Loft Group

Identifier: curves.tdlt_loft_duplicate

Duplicate the selected curves.

Properties:

• Duplicate Mode (Enumeration)

  • After - Duplicate at the higher index

  • Before - Duplicate at the lower index

Duplicate Separated from Loft Group and Move

Identifier: curves.tdlt_loft_duplicate_separate_move

Duplicate the selected curves into a new loft group and start moving.

Duplicate in Loft Group and Move

Identifier: curves.tdlt_loft_duplicate_move

Duplicate the selected curves and start moving.

NURBS

Set Loft NURBS Order

Identifier: curves.tdlt_loft_nurbs_order_set

Set the selected loft curves NURBS order on the U/V axis.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Delta (Integer)

• Reset Order (Boolean)

Set Loft NURBS Knots Mode

Identifier: curves.tdlt_loft_nurbs_knots_mode_set

Set the selected loft curves NURBS knots mode on the U/V axis.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Tool Mode (Enumeration)

  • Endpoint Toggle

  • Bézier Toggle

  • Set

• Endpoint (Boolean) - Make this NURBS curve meet the endpoints.

• Bézier (Boolean) - Make this NURBS curve act like a Bézier spline.

Set Loft NURBS Weight

Identifier: curves.tdlt_loft_nurbs_weight_set

Set NURBS weight for the selected loft curves.

Properties:

• Axis (Enumeration)

  • U - Profile axis, control curves to use as lofting base

  • V - Generated loft axis

• Weight (Float)

Bezier Handles

Translate Loft Handles

Identifier: curves.tdlt_loft_handles_translate

Translate loft handles.

Properties:

• Handle Mode (Enumeration)

  • Both - Left and right handles

  • Left - Only left handle

  • Right - Only right handle

• Orientation (Enumeration)

  • Global

  • Local

  • Loft Normal

  • View

  • Cursor

• Translation (Float)

Rotate Loft Handles

Identifier: curves.tdlt_loft_handles_rotate

Rotate loft handles.

Properties:

• Handle Mode (Enumeration)

  • Both - Left and right handles

  • Left - Only left handle

  • Right - Only right handle

• Orientation (Enumeration)

  • Global

  • Local

  • Loft Normal

  • View

  • Cursor

• Rotation (Float)

Scale Loft Handles

Identifier: curves.tdlt_loft_handles_scale

Scale loft handles.

Properties:

• Handle Mode (Enumeration)

  • Both - Left and right handles

  • Left - Only left handle

  • Right - Only right handle

• Orientation (Enumeration)

  • Global

  • Local

• Scale (Float)

Handles

Align Loft Handles to Cursor

Identifier: curves.tdlt_loft_handles_align_to_cursor

Align loft handles to cursor.

Properties:

• Alignment Mode (Enumeration)

  • Position

  • Rotation Only

• Handle Mode (Enumeration)

  • Left - Only left handle

  • Right - Only right handle

Gizmos

Loft Bézier Handles

Identifier: CURVES_GGT_tdlt_loft_bezier_handles

Space: 3D Viewport

Region: Window

Gizmos to move Bézier handles on Loft V axis.

Note that the API’s support for Gizmos is still fairly restrictive. So it is not possible to fully replicate the functionality of the native handles with an add-on. This system is for approximate manipulation only by hand, and for the more precise control of handles, use the dedicated “Translate/Rotate/Scale Loft Handles” operators where you can input exact offsets and other parameters.

Also, the gizmos are only available in Point selection mode for a single selected point. Full support for multiple handles and all selection modes is coming in the future updates.

Menus

Loft Tools

Identifier: CURVES_MT_tdlt_main

Main menu with all essential operators.

Loft Tools

Identifier: CURVES_MT_PIE_tdlt_main

Main pie menu with all essential operators.

Loft Handles Transform

Identifier: CURVES_MT_tdlt_handles_transform

Loft Handles Transform menu: Translate, Rotate, Scale.

Loft Handles Transform

Identifier: CURVES_MT_PIE_tdlt_handles_transform

Loft Handles Transform pie menu: Translate, Rotate, Scale.

Panels

Loft Tools > Loft Tools

Identifier: CURVES_PT_tdlt_main

Space: 3D Viewport

Region: Sidebar

Loft Curves panel with all essential operators..

Loft Tools > Loft Tools Preferences

Identifier: CURVES_PT_tdlt_preferences

Space: 3D Viewport

Region: Sidebar

Loft Tools preferences panel for 3D Viewport..

Key-bindings

Curves

Call Loft Curves Menu	Alt V
Call Loft Curves Handles Transform Menu	Ctrl Alt V
Select Loft Group	Ctrl Alt L
Toggle Loft Cyclic	Ctrl Alt C
Duplicate Separated from Loft Group and Move	Shift Alt D
Duplicate in Loft Group and Move	Ctrl D
Duplicate in Loft Group and Move	Shift Ctrl D