WebVR Connector

Category: Mega-Polis → Visualisation → Visualisation Design Tools
Node ID: SvMegapolisWebVRConnector
Tooltip: Web VR Connector
Dependencies: os (writes files to disk). Uses A-Frame / Three.js via generated HTML/JS.

Functionality

Generates (and writes to disk) a minimal WebVR/WebGL entry point intended to visualise Sverchok mesh data in a browser using A-Frame + Three.js.

The node: - Reads a target Folder plus mesh Vertices, Faces, and Material - Converts vertices into a single formatted string (vertices_str) - Converts faces into a list of THREE.Face3(...) push statements (faces_str) - Creates the output folder if missing - Writes an index.html file into the folder - Outputs the generated HTML (string) plus the processed vertices/faces strings

Inputs

Socket Type Description
Folder SvStringsSocket Output folder where index.html is written (first item is used).
Vertices SvVerticesSocket Mesh vertices (nested Sverchok structure). Converted into a formatted string.
Faces SvStringsSocket Mesh faces (index triples expected). Converted into THREE.Face3(...) statements.
Material SvStringsSocket Material identifier/string (first item is used). Currently not applied because html is empty.

All inputs must be linked for the node to execute.

Parameters

Name Type Default Description
create Bool False UI toggle “Create Html”. Present in the node UI, but currently not used to gate execution (process runs whenever sockets are linked).
height Int 600 Intended display height for embedding (not currently used because the embedding code is commented out).
width Int 800 Intended display width for embedding (not currently used because the embedding code is commented out).

Outputs

Socket Type Description
Html SvStringsSocket The generated HTML string. Currently an empty string placeholder.
Vertices Out SvVerticesSocket The generated vertex string (space-separated triples with commas between vertex entries).
Faces Out SvStringsSocket The generated face JS statements (one per line).

Example

Export a mesh to a WebVR folder

  1. Create/generate a mesh in Sverchok and provide:
    • Vertices as a nested vertex list
    • Faces as triangle faces (triples of indices)
  2. Provide:
    • Folder → "/tmp/megapolis_webvr"
    • Material → "default" (any string)
  3. Execute the node.
  4. Open the written file in a browser:
    • /tmp/megapolis_webvr/index.html

Notes

  • Faces must be triangles: the node generates THREE.Face3(v0, v1, v2) per face. Quads/ngons are not handled.