Polypatch SOP

Summary

The Polypatch SOP creates a smooth polygonal patch from a mesh primitive or a set of faces (polygons, NURBS or Bezier curves).

polypatchSOP_Class

Parameters - Polypatch Page

Group group - Subset of input to use. Accepts patterns, as described in Pattern Matching.

Basis basis - ⊞ - Select spline type: Cardinal or BSpline.

• Cardinal cardinal -

• BSpline bspline -

Connectivity connecttype - ⊞ - This option is used to select how the points of the created surface are connected.

• Rows rows - Creates horizontal lines, which are open polygons.

• Columns cols - Creates vertical lines, which are open polygons.

• Rows and Columns rowcol - Both rows and columns, all open polygons.

• Triangles triangles - Build the grid with triangles.

• Quadrilaterals quads - Default grid connection - four-sided quadrilaterals.

• Alternating Triangles alttriangles - Generates triangles that are opposed; similar to the Triangles option.

• Inherit from Source inheritconnect - When this connectivity option is selected, the output mesh will have the same connectivity as the input hull mesh.

U Wrap closeu - ⊞ - Settings for wrapping in U direction.

• Off nonewu - Do not wrap in U/V.

• On wu - Wrap in U/V.

• If Primitive does ifprimwu - Wrap in U/V if the input primitive does.

V Wrap closev - ⊞ - Settings for wrapping in V direction.

• Off nonewv - Do not wrap in U/V.

• On wv - Wrap in U/V.

• If Primitive does ifprimwv - Wrap in U/V if the input primitive does.

U Clamp (First) firstuclamp - ⊞ - Settings for clamping first end in U.

• Off firstuclampoff - Do not clamp the first/last end in the U/V direction.

• On firstuclampon - Clamp the first/last end in the U/V direction.

• If primitive does firstuclampifprim - Clamp the first/last end in the U/V direction if the input primitive does.

U Clamp (Last) lastuclamp - ⊞ - Settings for clamping last end in U.

• Off lastuclampoff - Do not clamp the first/last end in the U/V direction.

• On lastuclampon - Clamp the first/last end in the U/V direction.

• If primitive does lastuclampifprim - Clamp the first/last end in the U/V direction if the input primitive does.

V Clamp (First) firstvclamp - ⊞ - Settings for clamping first end in V.

• Off firstvclampoff - Do not clamp the first/last end in the U/V direction.

• On firstvclampon - Clamp the first/last end in the U/V direction.

• If primitive does firstvclampifprim - Clamp the first/last end in the U/V direction if the input primitive does.

V Clamp (Last) lastvclamp - ⊞ - Settings for clamping last end in V.

• Off lastvclampoff - Do not clamp the first/last end in the U/V direction.

• On lastvclampon - Clamp the first/last end in the U/V direction.

• If primitive does lastvclampifprim - Clamp the first/last end in the U/V direction if the input primitive does.

Output Divisions divisions - ⊞ - The number of divisions in the output surface. Use more divisions for a smoother surface.

• X divisionsx -

• Y divisionsy -

Output Polygons polys - Force polygonal rather than mesh output.

Operator Inputs

• Input 0 -

Info CHOP Channels

Extra Information for the Polypatch SOP can be accessed via an Info CHOP.

Common SOP Info Channels

• num_points - Number of points in this SOP.

• num_prims - Number of primitives in this SOP.

• num_particles - Number of particles in this SOP.

• last_vbo_update_time - Time spent in another thread updating geometry data on the GPU from the SOP's CPU data. As it is part of another thread, this time is not part of the usual frame time.

• last_meta_vbo_update_time - Time spent in another thread updating meta surface geometry data (such as metaballs or nurbs) on the GPU from the SOP's CPU data. As it is part of another thread, this time is not part of the usual frame time.

Common Operator Info Channels

• total_cooks - Number of times the operator has cooked since the process started.

• cook_time - Duration of the last cook in milliseconds.

• cook_frame - Frame number when this operator was last cooked relative to the component timeline.

• cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.

• cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.

• cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.

• cooked_this_frame - 1 if operator was cooked this frame.

• warnings - Number of warnings in this operator if any.

• errors - Number of errors in this operator if any.

TouchDesigner Build: Latest\n2021.100002018.28070before 2018.28070

An Operator Family that reads, creates and modifies 3D polygons, curves, NURBS surfaces, spheres, meatballs and other 3D surface data.

A surface type in SOPs including polygon, curve (NURBS and Bezier), patch (NURBS and Bezier) and other shapes like sphere, tube, and metaball. Points and Primitives are part of the Geometry Detail, which is a part of a SOP.

An Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.

The Graphics Processing Unit. This is the high-speed, many-core processor of the graphics card/chip that takes geometry, images and data from the CPU and creates images and processed data.