| verts | The UIVertex list to split. |
| positions | The destination list for the verts positions. |
| colors | The destination list for the verts colors. |
| uv0S | The destination list for the verts uv0s. |
| uv1S | The destination list for the verts uv1s. |
| normals | The destination list for the verts normals. |
| tangents | The destination list for the verts tangents. |
Take the Vertex steam and split it corrisponding arrays (positions, colors, uv0s, uv1s, normals and tangents).