mesh.primitive.schema.json

{
    "$schema" : "http://json-schema.org/draft-03/schema",
    "title" : "primitive",
    "type" : "object",
    "description" : "Geometry to be rendered with the given material.",
    "extends" : { "$ref" : "glTFProperty.schema.json" },
    "properties" : {
        "attributes" : {
            "type" : "object",
            "description" : "A dictionary object of strings, where each string is the ID of the accessor containing an attribute.",
            "properties" : {
            },
            "additionalProperties" : {
                "$ref" : "mesh.primitive.attribute.schema.json"
            },
            "default" : {}
        },
        "indices" : {
            "extends" : { "$ref" : "glTFid.schema.json" },
            "description" : "The ID of the accessor that contains the indices.",
            "gltf_detailedDescription" : "The ID of the accessor that contains the indices.  When this is not defined, the primitives should be rendered without indices using `drawArrays()`.  When defined, the accessor must contain indices: the bufferView referenced by the accessor must have a target equal to 34963 (ELEMENT_ARRAY_BUFFER); a byteStride that is tightly packed, i.e., 0 or the byte size of componentType in bytes; componentType must be 5121 (UNSIGNED_BYTE) or 5123 (UNSIGNED_SHORT); and type must be \"SCALAR\"."
        },
        "material" : {
            "extends" : { "$ref" : "glTFid.schema.json" },
            "description" : "The ID of the material to apply to this primitive when rendering.",
            "required" : true
        },
        "mode" : {
            "type" : "integer",
            "description" : "The type of primitives to render.",
            "enum" : [0, 1, 2, 3, 4, 5, 6],
            "gltf_enumNames" : ["POINTS", "LINES", "LINE_LOOP", "LINE_STRIP", "TRIANGLES", "TRIANGLE_STRIP", "TRIANGLE_FAN"],
            "default" : 4,
            "gltf_detailedDescription" : "The type of primitives to render. All valid values correspond to WebGL enums."
        }
    },
    "additionalProperties" : false,
    "gltf_webgl" : "`drawElements()` and `drawArrays()`"
}