A view that maps standard attribute names (e.g. 'position', 'size') to their actual geometry attribute objects, which may have different names in the instanced renderer (e.g. 'instanceOffset', 'instanceSize').
Packed RGBA color (vec4).
Optional
Packed quaternion vec4 for 3D mesh rotation (only present for RendererType.MESH).
A view that maps standard attribute names (e.g. 'position', 'size') to their actual geometry attribute objects, which may have different names in the instanced renderer (e.g. 'instanceOffset', 'instanceSize').