Interface GLTFMaterial

Every vertex in a glTF Mesh has a set of attributes. POSITION cannot be specified -- ManifoldCAD will set it internally.

This array specifies how vertex properties are arranged in memory. For example, a value of ['TEXCOORD_0', 'NORMAL', 'SKIP_2', 'COLOR_0'] would implicitly use property channels 0-2 for position, followed by channels 3-4 for texture, 5-7 for surface normal, ignore 8-9, and 10-12 for color.

Some properties such as TEXCOORD_0 or COLOR_0 may be set when importing a model that has a texture or material.

When vertex property COLOR_0 is specified, it will be multiplied against baseColorFactor.

Roughness of the material. Ranges from 0 (smooth, specular) to 1.0 (rough, diffuse).

Metallic property of the material. Ranges from 0 (dielectric, e.g.: yellow plastic) to 1.0 (conductor, e.g: gold). Generally speaking materials are either one or the other and intermediate values are just for blending.

Base colour of the material. RGB values, ranging from 0 to 1.0.

If the attribute COLOR_0 is specifed, it will be multiplied against baseColorFactor. In this case, use an appropriate value like [1.0, 1.0, 1.0].

Transparency of the material. Ranges from 0 (fully transparent) to 1.0 (fully opaque).

Render model as unlit or shadeless, as opposed to physically based rendering.

Material name. Will be passed through when exported.