skin.schema.json

{
    "$schema" : "http://json-schema.org/draft-04/schema",
    "title" : "skin",
    "type" : "object",
    "description" : "Joints and matrices defining a skin.",
    "allOf" : [ { "$ref" : "glTFChildOfRootProperty.schema.json" } ],
    "properties" : {
        "name" : {},
        "extensions" : {},
        "extras" : {},
        "bindShapeMatrix" : {
            "type" : "array",
            "description" : "Floating-point 4x4 transformation matrix stored in column-major order.",
            "items" : {
                "type": "number"
            },
            "minItems" : 16,
            "maxItems" : 16,
            "default" : [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ]
        },
        "inverseBindMatrices" : {
            "allOf" : [ { "$ref" : "glTFid.schema.json" } ],
            "description" : "The ID of the accessor containing the floating-point 4x4 inverse-bind matrices."    
        },
        "jointNames" : {
            "type" : "array",
            "description" : "Joint names of the joints (nodes with a `jointName` property) in this skin.",
            "items" : {
                "$ref" : "glTFid.schema.json"
            },
            "uniqueItems" : true,
            "gltf_detailedDescription" : "Joint names of the joints (nodes with a `jointName` property) in this skin.  The array length is the same as the `count` property of the `inverseBindMatrices` accessor, and the same as the total quantity of all skeleton nodes from node-trees referenced by the skinned mesh instance node's `skeletons` array."
        }
    },
    "additionalProperties" : false,
    "required" : ["inverseBindMatrices", "jointNames"]
}