2011/6/30 Charles Welton <charles...@gmail.com>: > --- > > + memcpy(buffer_mem, vertices, size);
There is no need to allocate and write into your own buffer then copy the content, you can directly write into the vertex buffer. A more important issue: MSDN says "The ID3DXLine interface implements line drawing using textured triangles", which is probably true (as far as I know there is otherwise no support in D3D9 to antialiased/stippled/wide lines, which are instead supported by ID3DXLine). So, drawing with D3DPT_LINESTRIP primitives in general is probably not the right way...
