Rendering from User Memory Pointers

A secondary set of rendering interfaces supports passing vertex and index data directly from user memory pointers. These interfaces support a single stream of vertex data only. For more information, see the following reference topics.

• IDirect3DDevice9::DrawPrimitiveUP
• IDirect3DDevice9::DrawIndexedPrimitiveUP

These methods render with data specified by user memory pointers, instead of vertex and index buffers.