sukonbu

JSON Schema converter. A code generator for GLTF read/write.

ToDo

• python generator(TypedDict)
• (WIP)D generator
• C# generator
• (WIP)C++ generator
• manipulate Extensions and Extras

Usage

$ python -m sukonbu PATH_TO_GLTF_JSONSCHEMA --lang python --dst PATH_TO_GENERATE_FILE

extension handling

    unlit_path = gltf_path.parent.parent.parent.parent / 'extensions/2.0/Khronos/KHR_materials_unlit/schema/gltf.KHR_materials_unlit.schema.json'
    unlit = JsonSchemaParser(gltf_path.parent)
    unlit.process(unlit_path)
    js_parser.set('materials[].extensions.KHR_materials_unlit', unlit)

python

python3 with typing

class MeshPrimitiveMode(Enum):
    POINTS = 0
    LINES = 1
    LINE_LOOP = 2
    LINE_STRIP = 3
    TRIANGLES = 4
    TRIANGLE_STRIP = 5
    TRIANGLE_FAN = 6


class MeshPrimitiveRequired(TypedDict):
    # A dictionary object, where each key corresponds to mesh attribute semantic and each value is the index of the accessor containing attribute's data.
    attributes: Dict[str, int]


class MeshPrimitiveOptional(TypedDict, total=False):
    # The index of the accessor that contains the indices.
    indices: int
    # The index of the material to apply to this primitive when rendering.
    material: int
    # The type of primitives to render.
    # default=4
    mode: MeshPrimitiveMode
    # An array of Morph Targets, each  Morph Target is a dictionary mapping attributes (only `POSITION`, `NORMAL`, and `TANGENT` supported) to their deviations in the Morph Target.
    targets: List[Dict[str, int]]
    # Dictionary object with extension-specific objects.
    extensions: dict
    # Application-specific data.
    extras: dict


class MeshPrimitive(MeshPrimitiveRequired, MeshPrimitiveOptional):
    pass

c++

JSON Schema is not compatible with statically typed serialization. For example, a statically typed language cannot assign null to an int field. However, JSON Schema can skip unnecessary object properties, which are manipulated as null.

So I made this.

• generate serialized containers(Force all object properties to be nullable)
• generate deserializer for that containers
• generate serializer for that containers(Skip unnecessary object properties)

gltf.h