Geometry to be rendered with the given material.
A dictionary object, where each key corresponds to mesh attribute semantic and each value is the index of the accessor containing attribute's data.
The index of the accessor that contains the indices.
The index of the material to apply to this primitive when rendering.
The type of primitives to render.
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.
Geometry to be rendered with the given material.