@bottobot/td-mcp
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TouchDesigner MCP Server v2.8.0 - 21 MCP tools, 629 operators with clean parameter data, 69 Python API classes, 14 tutorials, 32 workflow patterns. Includes version system, experimental techniques KB, core tool enhancements, and experimental build support
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JSON
{
"id": "project_sop",
"name": "Project SOP",
"displayName": "Project SOP",
"category": "SOP",
"subcategory": "Generators",
"version": "",
"lastUpdated": "2025-08-07T07:50:08.037Z",
"sourceFile": "C:\\Program Files\\Derivative\\TouchDesigner\\Samples\\Learn\\OfflineHelp\\https.docs.derivative.ca\\Project_SOP.htm",
"url": "",
"description": "The Project SOP creates curves on surface (also known as trim or profile curves) by projecting a 3D face onto a spline surface, much like a light casts a 2D shadow onto a 3D surface. There are two projection methods: along a vector, or by mapping the face directly onto the parametric space of the surface.",
"summary": "The Project SOP creates curves on surface (also known as trim or profile curves) by projecting a 3D face onto a spline surface, much like a light casts a 2D shadow onto a 3D surface. There are two pro",
"details": "",
"usage": "",
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{
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"name": "Face Group",
"label": "Face Group",
"group": "General",
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"description": "The group of faces to be projected onto the spline surfaces.",
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"name": "Surface Group",
"label": "Surface Group",
"group": "General",
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"description": "surfgroup - The group of surfaces to project faces onto. Accepts patterns, as described in Pattern Matching.",
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"id": null,
"name": "Cycle Type",
"label": "Cycle Type",
"group": "General",
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"description": "cycle - - Select the method use to project the 3D faces onto the 3D spline surfaces.\n\n allseq - If projected parametrically, the spatial relationship between the faces will be preserved. For example, if the text \"hello\" is projected parametrically and in sequence, the letters will appear on the surface naturally, side by side. Sequence is not applicable if projecting along a vector. allover - If projected parametrically, the spatial relationship between the faces is not preserved, so they will appear overlapped in the area of the domain chosen for projection. Overlapping is not applicable if projecting along a vector. oneeach - Each face is projected onto a surface in the order in which the face and the surface appear in the input or in their respective groups. cycled - This is the same as One Per Surface, above, but starts the faces again if there are surfaces left.",
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"name": "All on Each Surface in Sequence",
"label": "All on Each Surface in Sequence",
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"description": "allseq - If projected parametrically, the spatial relationship between the faces will be preserved. For example, if the text \"hello\" is projected parametrically and in sequence, the letters will appear on the surface naturally, side by side. Sequence is not applicable if projecting along a vector. allover - If projected parametrically, the spatial relationship between the faces is not preserved, so they will appear overlapped in the area of the domain chosen for projection. Overlapping is not applicable if projecting along a vector. oneeach - Each face is projected onto a surface in the order in which the face and the surface appear in the input or in their respective groups. cycled - This is the same as One Per Surface, above, but starts the faces again if there are surfaces left.",
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"label": "Method",
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"description": "method - - Select between projecting along a vector or parametrically using the parameters below.\n\n vector - The face is projected along a 3D vector and its image on the surface is converted into a curve on the surface. One spatial curve may generate several profiles depending on its position relative to the surface, the shape of the surface, and the chosen projection side. If the projected face does not intersect the surface at all, no profile curve will be generated. parametric - The spatial size of the faces is mapped directly onto the domain of the spline surface. The resulting projection is sensitive to the parameterization of the surface and is likely to appear distorted. It is, however, the fastest of the two projection types and tends to behave well on surfaces with regular shapes and chord-length parameterizations.",
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"name": "Along Vector",
"label": "Along Vector",
"group": "General",
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"description": "vector - The face is projected along a 3D vector and its image on the surface is converted into a curve on the surface. One spatial curve may generate several profiles depending on its position relative to the surface, the shape of the surface, and the chosen projection side. If the projected face does not intersect the surface at all, no profile curve will be generated. parametric - The spatial size of the faces is mapped directly onto the domain of the spline surface. The resulting projection is sensitive to the parameterization of the surface and is likely to appear distorted. It is, however, the fastest of the two projection types and tends to behave well on surfaces with regular shapes and chord-length parameterizations.",
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"name": "Axis",
"label": "Axis",
"group": "General",
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"description": "axis - - The axis along which the four corners of the feature are projected onto the base. When adding the feature from the outside as a Vector paste.\n\n xaxis - Cartesian axis X, Y, or Z. yaxis - Cartesian axis X, Y, or Z. zaxis - Cartesian axis X, Y, or Z. fnorm - Projection axis occurs along each face's normal. Thus, each face could potentially have a different projection direction than the others. The option also works well for non-planar faces. mindist - Projects the entire 3D face along the vectors of minimum distance to the surface. The projection resolution is given by the value. other - Enables the Vector fields immediately below to specify the X, Y, and Z components of the vector.Note: When the Minimum Distance option is selected, the Side button becomes disabled because it's irrelevant for this projection type.",
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"name": "X",
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"description": "xaxis - Cartesian axis X, Y, or Z. yaxis - Cartesian axis X, Y, or Z. zaxis - Cartesian axis X, Y, or Z. fnorm - Projection axis occurs along each face's normal. Thus, each face could potentially have a different projection direction than the others. The option also works well for non-planar faces. mindist - Projects the entire 3D face along the vectors of minimum distance to the surface. The projection resolution is given by the value. other - Enables the Vector fields immediately below to specify the X, Y, and Z components of the vector.Note: When the Minimum Distance option is selected, the Side button becomes disabled because it's irrelevant for this projection type.",
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"description": "vector - - The X, Y, and Z components of the projection vector if none of the main axes is chosen in the Axis parameter above.\n\nvector1 -vector2 -vector3 -",
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"name": "Side",
"label": "Side",
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"description": "projside - - Select which sides of the geometry to project on, closest or farthest.\n\n closest - Will project the face onto the closest part of the surface in either direction of projection vector. For example, if a curve being projected onto a tube is inside the tube, it will yield two profiles, one on each side of the tube; if the curve is outside the tube, it will project onto the side closest to it. farthest - The reverse of Closest. In the example above, Farthest would also yield two images if the curve is inside the tube, but it will choose the farthest side if the curve is outside the tube.",
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"name": "Closest",
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"description": "closest - Will project the face onto the closest part of the surface in either direction of projection vector. For example, if a curve being projected onto a tube is inside the tube, it will yield two profiles, one on each side of the tube; if the curve is outside the tube, it will project onto the side closest to it. farthest - The reverse of Closest. In the example above, Farthest would also yield two images if the curve is inside the tube, but it will choose the farthest side if the curve is outside the tube.",
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"name": "Divisions per Span",
"label": "Divisions per Span",
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"description": "sdivs - The number of points to be computed on the spatial face between successive spans. A span is the line connecting two consecutive CVs on a polygon, or the arc between two breakpoints on a spline curve. The projection tends to become more accurate as the number of divisions increases.",
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"name": "Ray Tolerance",
"label": "Ray Tolerance",
"group": "General",
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"description": "rtolerance - Controls the precision of the ray intersection with the surface. The ray is cast along the projection vector from every point of the 3-D curve.",
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"name": "Fit Tolerance",
"label": "Fit Tolerance",
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"description": "ftolerance - Controls the 2-D fitting precision and is typically less than 0.01.",
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"name": "Max UV Gap (%)",
"label": "Max UV Gap (%)",
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"description": "uvgap - This specifies what percentage of the size of the surface domain is acceptable for two separate profiles to be joined into a single curve.",
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"description": "order - The spline order of the resulting profile curve. The type of curve (Bzier or NURBS) is inherited from the spatial curve. The order, however, is not inherited because the spline order provides useful control over the quality of the fit. If the spatial face is a polygon, the profile will be a NURBS curve.",
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"name": "Preserve Sharp Corners",
"label": "Preserve Sharp Corners",
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"description": "csharp - Controls the precision with which sharp corners in the projection curve are interpolated. It should be on when the projection has areas of high changes in curvature.",
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