polyxios.SceneMaterial#

class polyxios.SceneMaterial(name: str = '', base_color: tuple[float, float, float, float]=(1.0, 1.0, 1.0, 1.0), metallic: float = 1.0, roughness: float = 1.0, emissive: tuple[float, float, float]=(0.0, 0.0, 0.0), alpha_mode: str = 'OPAQUE', alpha_cutoff: float = 0.5, double_sided: bool = False, base_color_texture: int | None = None, normal_texture: int | None = None, metallic_roughness_texture: int | None = None, occlusion_texture: int | None = None, emissive_texture: int | None = None, extras: dict[str, ~typing.Any]=<factory>)[source]#

PBR metallic-roughness material.

Parameters:

name: Material name from the source file.
base_color: RGBA base-color factor in linear space, each component in [0, 1].
metallic: Metallic factor in [0, 1].
roughness: Roughness factor in [0, 1].
emissive: RGB emissive factor in linear space.
alpha_mode: One of "OPAQUE", "MASK", or "BLEND".
alpha_cutoff: Alpha cutoff threshold used when alpha_mode is "MASK".
double_sided: Whether the material is rendered on both sides.
base_color_texture: Index into SceneData.textures, or None.
normal_texture: Index into SceneData.textures, or None.
metallic_roughness_texture: Index into SceneData.textures, or None.
occlusion_texture: Index into SceneData.textures, or None.
emissive_texture: Index into SceneData.textures, or None.
extras: Format-specific extra data preserved for round-tripping.

__init__(name: str = '', base_color: tuple[float, float, float, float]=(1.0, 1.0, 1.0, 1.0), metallic: float = 1.0, roughness: float = 1.0, emissive: tuple[float, float, float]=(0.0, 0.0, 0.0), alpha_mode: str = 'OPAQUE', alpha_cutoff: float = 0.5, double_sided: bool = False, base_color_texture: int | None = None, normal_texture: int | None = None, metallic_roughness_texture: int | None = None, occlusion_texture: int | None = None, emissive_texture: int | None = None, extras: dict[str, ~typing.Any]=<factory>) → None#

Methods

__init__(name, base_color, float, float, ...)

Attributes

`name`
`base_color`
`metallic`
`roughness`
`emissive`
`alpha_mode`
`alpha_cutoff`
`double_sided`
`base_color_texture`
`normal_texture`
`metallic_roughness_texture`
`occlusion_texture`
`emissive_texture`
`extras`