{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://rig.works/schemas/rig.geometry.nurbs_surface.schema.json",
  "title": "rig.geometry.nurbs_surface",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "degreeU": {
      "$ref": "./_defs.schema.json#/$defs/int"
    },
    "degreeV": {
      "$ref": "./_defs.schema.json#/$defs/int"
    },
    "countU": {
      "type": "integer",
      "minimum": 2
    },
    "countV": {
      "type": "integer",
      "minimum": 2
    },
    "controlPoints": {
      "type": "array",
      "items": {
        "$ref": "./_defs.schema.json#/$defs/vec3"
      },
      "minItems": 4
    },
    "knotsU": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "knotsV": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "weights": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "closedU": {
      "$ref": "./_defs.schema.json#/$defs/bool"
    },
    "closedV": {
      "$ref": "./_defs.schema.json#/$defs/bool"
    }
  },
  "required": [
    "degreeU",
    "degreeV",
    "countU",
    "countV",
    "controlPoints",
    "knotsU",
    "knotsV"
  ]
}