There is a bug that is related to D3D
implementation with the following two options:
When a large data set is rendered with all the triangle
arrays constructed with by-reference vertex format,
only a certain number of geometry arrays are rendered.
The OGL version works very well while the D3D version fails
to render properly with the following property set
Releate discussion thread.
Large data set is in terms of number of geometries.
Not in terms of single large geometry. It is verified
that for a 500K TriangleArray can be displayed properly
with or without optimizeForSpace under D3D.
Reported here to be able to track it.