polyxios.SceneData#

class polyxios.SceneData(meshes: tuple[~polyxios._types.PolyData, ...], nodes: tuple[~polyxios._scene.SceneNode, ...], materials: tuple[~polyxios._scene.SceneMaterial, ...] = (), textures: tuple[~polyxios._scene.SceneTexture, ...] = (), images: tuple[~polyxios._scene.SceneImage, ...] = (), scenes: tuple[tuple[int, ...], ...] = (), active_scene: int = 0, name: str = '', global_attrs: dict[str, ~typing.Any] = <factory>)[source]#

Multi-mesh scene with hierarchy, materials, and texture images.

This is the type returned by scene-aware codecs (glTF, FBX, USD, COLLADA). Each entry in meshes is a flat PolyData; element_attrs["material"] holds int32 indices into materials (-1 meaning no material). Node transforms are stored as local matrices; world transforms are computed on demand by world_transform().

Parameters:

meshes: One PolyData per glTF mesh (primitives merged).
nodes: Scene-graph nodes with local transforms and parent–child wiring.
materials: PBR materials referenced by element_attrs[“material”] indices.
textures: Textures referencing entries in images.
images: Raw image data or URI references.
scenes: Each entry is a tuple of root-node indices defining one scene.
active_scene: Index of the default scene in scenes.
name: Optional top-level name from the source file.
global_attrs: Format-level metadata: asset, raw animations, skins, etc.

__init__(meshes: tuple[~polyxios._types.PolyData, ...], nodes: tuple[~polyxios._scene.SceneNode, ...], materials: tuple[~polyxios._scene.SceneMaterial, ...] = (), textures: tuple[~polyxios._scene.SceneTexture, ...] = (), images: tuple[~polyxios._scene.SceneImage, ...] = (), scenes: tuple[tuple[int, ...], ...] = (), active_scene: int = 0, name: str = '', global_attrs: dict[str, ~typing.Any] = <factory>) → None#

Methods

`__init__`(meshes, ...], nodes, ...], ...)
`to_polydata`(*[, scene, apply_transforms])	Flatten the scene graph into a single merged PolyData.
`world_transform`(node_index)	Return the world-space 4×4 transform for the given node.

Attributes

`meshes`
`nodes`
`materials`
`textures`
`images`
`scenes`
`active_scene`
`name`
`global_attrs`