StepToGltfBody

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://artifacts.apis.io/bitbybit-dev/json-schema/bitbybit-dev-step-to-gltf-body-schema.json",
  "title": "StepToGltfBody",
  "description": "Convert a STEP file to glTF format with default settings. Upload the STEP file first, then pass its ID here.",
  "x-generated": "2026-10-29",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/bitbybit-dev-openapi.json#/components/schemas/StepToGltfBody",
  "type": "object",
  "properties": {
    "stepFileId": {
      "type": "string",
      "minLength": 1,
      "description": "ID of the previously uploaded STEP file (returned by the file upload endpoint)"
    },
    "meshPrecision": {
      "description": "Mesh linear deflection. When meshRelative is true (default), this is a fraction of each edge's length (e.g. 0.005 = 0.5%). When false, it is an absolute value in model units (mm for STEP).",
      "$ref": "#/$defs/MeshPrecision"
    },
    "meshAngle": {
      "description": "Angular deflection in radians for mesh tessellation - controls curvature approximation. Smaller values produce smoother curved surfaces.",
      "$ref": "#/$defs/MeshAngle"
    },
    "meshRelative": {
      "description": "Use size-aware relative deflection per face. When true, meshPrecision is a fraction of each edge's length. Set to false for absolute deflection in model units.",
      "type": "boolean"
    },
    "internalVerticesMode": {
      "description": "Add interior vertices for better curved face fidelity (slower, set false for speed).",
      "type": "boolean"
    },
    "controlSurfaceDeflection": {
      "description": "Extra post-pass refining triangles that bulge beyond the deflection (slower, set false for speed).",
      "type": "boolean"
    }
  },
  "required": [
    "stepFileId"
  ],
  "additionalProperties": false,
  "$defs": {
    "MeshAngle": {
      "type": "number",
      "minimum": 0.01,
      "maximum": 3.141592653589793,
      "description": "Mesh angular deflection in radians. Range: [0.01, π]"
    },
    "MeshPrecision": {
      "type": "number",
      "minimum": 0.0001,
      "maximum": 10,
      "description": "Mesh tessellation precision (lower = finer). Range: [0.0001, 10]"
    }
  }
}