@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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{
"id": "rails_sop",
"name": "Rails SOP",
"displayName": "Rails SOP",
"category": "SOP",
"subcategory": "Generators",
"version": "",
"lastUpdated": "2025-08-07T07:50:08.131Z",
"sourceFile": "C:\\Program Files\\Derivative\\TouchDesigner\\Samples\\Learn\\OfflineHelp\\https.docs.derivative.ca\\Rails_SOP.htm",
"url": "",
"description": "The Rails SOP generates surfaces by stretching cross-sections between two rails. This is similar to the Sweep SOP, but it gives more control over the orientation and scaling of the cross-sections. The first SOP input is the cross-section which will be replicated, and is typically placed in the XY plane. The second input SOP source is the rails along which the cross-section is replicated.",
"summary": "The Rails SOP generates surfaces by stretching cross-sections between two rails. This is similar to the Sweep SOP, but it gives more control over the orientation and scaling of the cross-sections. The",
"details": "",
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{
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"name": "X-Section Groups",
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"description": "railgrp - You can use a subset of primitives from the Rails input by specifying a group here. Accepts patterns, as described in Pattern Matching.",
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"name": "Cycle Type",
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"description": "cycle - - Select how the cross=section is applied along the rails.\n\n all - Places all the primitives from the Cross-section input at each point on the backbone. each - Similar to the above, except the transformation is applied to individual primitives rather than to the whole. cycle - This cycles through incoming primitives when placing them on a backbone. i.e. Start with 0 at vertex 0, primitive 1 at vertex 1, etc.",
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"description": "all - Places all the primitives from the Cross-section input at each point on the backbone. each - Similar to the above, except the transformation is applied to individual primitives rather than to the whole. cycle - This cycles through incoming primitives when placing them on a backbone. i.e. Start with 0 at vertex 0, primitive 1 at vertex 1, etc.",
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"name": "Sweep along Pairs of Rails",
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"description": "pairs - Sweeps along rail 1 & 2, 3 & 4, 5 & 6 etc. instead of 1 & 2, 2 & 3, 3 & 4 etc.",
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"description": "firstl - Connects the cross-section between the first and last rails.",
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"name": "Stretch to Rails",
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"description": "stretch - Stretches the cross-section geometry to the rail geometry.",
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"name": "Use Vertex",
"label": "Use Vertex",
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"description": "usevtx - Specifies two vertices of the cross section polygon to be placed on rail1 and rail2 respectively. Very useful, for instance, to keep the first vertex on rail1 and the seventh vertex on rail2.",
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"description": "vertex - - The vertices at which the cross-section is connected to the rails.\n\nvertex1 -vertex2 -",
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"description": "scale - Global scaling of the cross-sections.",
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"id": null,
"name": "Roll",
"label": "Roll",
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"description": "roll - Non-cumulative rotation of the cross sections around the backbone. All cross sections get the same rotation.",
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"name": "Fix Flipping",
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"description": "noflip - Option to correct the flipping when no direction vector is used and the two rails happen to cross each other causing the normal to flip upside down.",
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"description": "usedir - Uses the direction vector specified in the X, Y and Z coordinates. Otherwise it will use the normals of the geometry.",
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"description": "newg - Selecting this option enables the creation of groups. A group is created for each backbone that is incoming. This allows for easy skinning in the Skin SOP.",
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